Shure SCM820, IntelliMix SMC820 Instructions Manual

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Цифровой автоматический

Mixer automatico IntelliMix®

IntelliMix

Mixer Automático Digital

SCM820デジタルIntelliMix®オート

SCM820 Digitaler automatischer

микшер SCM820 Digital IntelliMix

Mezcladora automática digital

IntelliMix® numérique SCM820

SCM820 Digital IntelliMix

Mélangeur automatique

SCM820 Digital IntelliMix

IntelliMix

Digital SCM820

SCM820 디지털

Mixer Otomatis

digitale SCM820

SCM820 IntelliMix

Mischer IntelliMix

Automatic Mixer

IntelliMix

자동 믹서

自动混音器

ミキサー

SMC820

® ®

ISTRUZIONI IMPORTANTI PER LA SICUREZZA

MAINSプラグまたはアプライアンスカップラーが使用できる状態にしておいてください。

WICHTIGE SICHERHEITSHINWEISE

CONSIGNES DE SÉCURITÉ IMPORTANTES

PETUNJUK PENTING KESELAMATAN

IMPORTANTES INSTRUÇÕES DE SEGURANÇA

ВАЖНЫЕ ИНСТРУКЦИИ ПО ТЕХНИКЕ БЕЗОПАСНОСТИ

중요 안전 지침

CONSIGNES DE SÉCURITÉ IMPORTANTES

IMPORTANT SAFETY INSTRUCTIONS

重要安全事项!

安全のための重要注意事項

1. ПРОЧИТАЙТЕ эти инструкции.

1. LEGGETE queste istruzioni.

1. Diese Hinweise LESEN.

1. LIRE ces consignes.

1. BACA petunjuk ini.

1. LEIA estas instruções.

2. СОХРАНИТЕ эти инструкции.

2. CONSERVATELE.

2. Diese Hinweise AUFBEWAHREN.

1. 이 지침을 정독해 주십시오.

1. LIRE ces consignes.

1. READ these instructions.

2. CONSERVER ces consignes.

2. SIMPAN petunjuk ini.

2. GUARDE estas instruções.

1. 必须阅读这些注意事项。

3. ОБРАЩАЙТЕ ВНИМАНИЕ на все предупреждения.

3. OSSERVATE tutte le avvertenze.

3. Alle Warnungen BEACHTEN.

2. 이 지침을 잘 보관해 주십시오.

2. CONSERVER ces consignes.

1. この説明書をお読みください。

2. KEEP these instructions.

3. OBSERVER tous les avertissements.

3. PATUHI semua peringatan.

3. PRESTE ATENÇÃO a todas as instruções.

4. СЛЕДУЙТЕ всем инструкциям.

4. SEGUITE tutte le istruzioni.

4. Alle Hinweise BEFOLGEN.

2. 必须保留这些注意事项。

3. HEED all warnings.

4. SUIVRE toutes les consignes.

3. OBSERVER tous les avertissements.

3. 모든 경고에 유의하십시오.

2. この説明書を保管しておいてください。

4. IKUTI semua petunjuk.

4. SIGA todas as instruções.

5. НЕ пользуйтесь этим прибором вблизи воды.

5. NON usate questo apparecchio vicino all'acqua.

5. Dieses Gerät NICHT in Wassernähe VERWENDEN.

4. FOLLOW all instructions.

5. NE PAS utiliser cet appareil à proximité de l'eau.

4. SUIVRE toutes les consignes.

5. JANGAN gunakan perangkat ini dekat dengan air.

3. 必须注意所有警告内容。

4. 모든 지침을 준수하십시오.

3. 警告事項すべてに留意してください。

5. NÃO use este aparelho perto de água.

6. ЧИСТИТЕ ТОЛЬКО сухой тканью.

6. PULITE l'apparecchio SOLO con un panno asciutto.

6. NUR mit einem sauberen Tuch REINIGEN.

5. DO NOT use this apparatus near water.

6. NETTOYER UNIQUEMENT avec un chiffon sec.

6. CUKUP DIBERSIHKAN dengan kain lap kering.

5. NE PAS utiliser cet appareil à proximité de l'eau.

6. LIMPE SOMENTE com um pano seco.

5. 이 기기를 물 가까이에 두고 사용하지 마십시오.

4. すべての指示に従ってください。

4. 必须遵循所有注意事项。

7. НЕ закрывайте никакие вентиляционные отверстия. Оставляйте расстояния, нужные

7. NON ostruite alcuna apertura per l'aria di raffreddamento. Consentite distanze sufficienti

7. KEINE Lüftungsöffnungen verdecken. Hinreichende Abstände für ausreichende Belüftung

6. CLEAN ONLY with dry cloth.

7. NE PAS obstruer les ouvertures de ventilation. Laisser des distances suffisantes pour

7. JANGAN halangi semua bukaan ventilasi. Biarkan jarak yang cukup dengan lubang

7. NÃO bloqueie nenhuma das aberturas de ventilação. Deixe distâncias suficientes para

6. NETTOYER UNIQUEMENT avec un chiffon sec.

6. 마른 수건으로만 닦으십시오.

5. この製品は水の近くで使用しないでください。

для достаточной вентиляции, и выполняйте установку в соответствии с инструкциями

5. 不要在靠近水的地方使用本设备。

per un'adeguata ventilazione e installate l'apparecchio seguendo le istruzioni del costrut-

vorsehen und gemäß den Anweisungen des Herstellers installieren.

7. DO NOT block any ventilation openings. Allow sufficient distances for adequate ventila-

permettre une ventilation adéquate et effectuer l'installation en respectant les instructions

udara yang cukup dan pasang sesuai petunjuk pabrik.

ventilação adequada e instale de acordo com as instruções do fabricante.

7. NE PAS obstruer les ouvertures de ventilation. Laisser des distances suffisantes pour

7. 통풍구를 막지 마십시오. 적합한 환기를 위해 충분히 거리를 두고 제조업체의 안내

6. 掃除は、乾いた布でから拭きするだけにしてください。

изготовителя.

6. 只能用干布擦拭设备。

tore.

8. NICHT in der Nähe von Wärmequellen wie zum Beispiel offenen Flammen, Heizkörpern,

tion and install in accordance with the manufacturer’s instructions.

du fabricant.

8. JANGAN pasang dekat dengan sumber panas seperti radiator, kisi-kisi tungku pemanas,

8. NÃO instale próximo de nenhuma fonte de calor, tais como fogo aceso, radiadores,

permettre une ventilation adéquate et effectuer l'installation en respectant les instructions

8. НЕ устанавливайте вблизи каких бы то ни было источников тепла — открытого

서에 따라 설치하십시오.

7. 通風口を塞がないようにしてください。十分な換気ができるよう余裕を持たせ、メーカー

8. NON installate l'apparecchio accanto a fonti di calore, quali fiamme libere, radiatori, aper-

Wärmespeichern, Öfen oder anderen Hitze erzeugenden Geräten (einschließlich

8. DO NOT install near any heat sources such as open flames, radiators, heat registers,

8. NE PAS installer à proximité d'une source de chaleur telle qu'une flamme nue, un

7. 不要堵塞任何通风口。留出足够的距离，确保充分通风，并安装在符合制造

kompor, atau perangkat lain (termasuk amplifier) yang menghasilkan panas. Jangan

bocais de aquecimento, fornos ou outros aparelhos que produzam calor (inclusive ampli-

du fabricant.

пламени, радиаторов, обогревателей, печей или других приборов (включая усилители),

8. 개방된 화염, 난방기, 방열 조절기, 스토브, 기타 열을 발산하는 기기 (앰프포함) 등

の指示に従って設置してください。

ture per l'efflusso di aria calda, forni o altri apparecchi (amplificatori inclusi) che generano

Verstärkern) installieren. Keine Quellen von offenen Flammen auf dem Produkt platzieren.

stoves, or other apparatus (including amplifiers) that produce heat. Do not place any open

radiateur, une bouche de chaleur, un poêle ou d'autres appareils (dont les amplificateurs)

taruh sumber api terbuka pada produk ini.

ficadores). Não coloque fontes de chamas sobre o produto.

商要求的位置。

8. NE PAS installer à proximité d'une source de chaleur telle qu'une flamme nue, un

выделяющих тепло. Не помещайте на изделие источники открытого пламени.

의 열원 근처에 설치하지 마십시오. 제품 위에 개방된 화염원을 올려 놓지 마십시오.

8. 炎、ラジエーターや暖房送風口、ストーブ、その他、熱を発生する機器 (アンプなど) の

calore. Non esponete il prodotto a fonti di calore non controllate.

9. Die Schutzfunktion des Schukosteckers NICHT umgehen. Ein Schukostecker verfügt

flame sources on the product.

produisant de la chaleur. Ne placer aucune source à flamme nue sur le produit.

9. JANGAN gagalkan tujuan keamanan steker terpolarisasi atau jenis pembumian. Steker

9. NÃO inutilize as características de segurança do conector polarizado ou com pino de

9. НЕ пренебрегайте защитными свойствами поляризованной или заземляющей вилки.

radiateur, une bouche de chaleur, un poêle ou d'autres appareils (dont les amplificateurs)

8. 不要将本设备安装在任何热源（如明火、散热器、调温器、火炉或包括功率

9. 안전을 위해 유극 또는 접지 타입의 플러그를 반드시 사용하십시오. 유극 유형의 플

近くには設置しないでください。炎が出る物を製品の上に置かないでください。

9. NON modificate la spina polarizzata o con spinotto di protezione per non alterarne

über zwei Steckerzinken sowie Schutzleiter. Bei dieser Steckerausführung dienen die

9. DO NOT defeat the safety purpose of the polarized or groundingtype plug. A polarized

9. NE PAS détériorer la sécurité de la fiche polarisée ou de la fiche de terre. Une fiche

terpolarisasi memiliki dua bilah di mana bilah yang satu lebih lebar dari yang lain. Steker

aterramento. Um conector polarizado possui duas lâminas com uma mais larga do que a

Поляризованная вилка имеет два ножевых контакта, из которых один шире другого.

produisant de la chaleur. Ne placer aucune source à flamme nue sur le produit.

放大器在可的其它可能产生热量的装置附近。不要将任何明火火源放置在产

러그는 넓은 핀과 좁은 핀, 두 개의 핀으로 구성되어 있습니다. 접지형 플러그에는

9. 有極プラグやアース付きプラグは安全のために用いられています。無効にしないように

la funzione di sicurezza. Una spina polarizzata è dotata di due lame, una più ampia

Schutzleiter Ihrer Sicherheit. Wenn der mitgelieferte Stecker nicht in die Steckdose passt,

plug has two blades with one wider than the other. A grounding type plug has two blades

polarisée comporte deux lames dont l'une est plus large que l'autre. Une fiche de terre

jenis pembumian memiliki dua bilah dan tonjolan pembumian ketiga. Bilah yang lebih

outra. Um conector com pino de aterramento possui duas lâminas e um terceiro pino de

Заземляющая вилка имеет два ножевых контакта и третий, заземляющий, штырь.

9. NE PAS détériorer la sécurité de la fiche polarisée ou de la fiche de terre. Une fiche

dell'altra. Una spina con spinotto è dotata di due lame e di un terzo polo di messa a terra.

einen Elektriker mit dem Austauschen der veralteten Steckdose beauftragen.

and a third grounding prong. The wider blade or the third prong are provided for your

두 개의 핀과 하나의 접지 단자가 있습니다. 넓은 핀이나 접지 단자는 사용자의 안전

してください。有極プラグは、2本のブレードのうち一方が幅広になっています。アース付

品上。

comporte deux lames et une troisième broche de mise à la terre. La lame la plus large ou

lebar atau tonjolan ketiga disediakan untuk keselamatan Anda. Jika steker yang dise-

aterramento. É fornecida uma lâmina mais larga ou o terceiro pino para a sua segurança.

Более широкий контакт или третий штырь предусматриваются для безопасности. Если

polarisée comporte deux lames dont l'une est plus large que l'autre. Une fiche de terre

La lama più ampia ed il terzo polo hanno lo scopo di tutelare la vostra incolumità. Se la

10. VERHINDERN, dass das Netzkabel gequetscht oder darauf getreten wird, insbesondere

safety. If the provided plug does not fit into your outlet, consult an electrician for replace-

을 위한 것입니다. 제공된 플러그가 콘센트에 맞지 않으면 전기 기사에게 문의하여

きプラグは、2本のブレードの他に、3本目のアースの棒がついています。幅広のブレード

la troisième broche assure la sécurité de l'utilisateur. Si la fiche fournie ne s'adapte pas à

diakan tidak cocok dengan stopkontak Anda, hubungi petugas listrik untuk penggantian

Se por acaso o conector não se encaixar na tomada, chame um eletricista para substituir

9. 不要破坏带极性或接地类型插头的安全功能。极性插头带有两个插片，其中一

вилка прибора не подходит к вашей розетке, обратитесь к электрику для замены

comporte deux lames et une troisième broche de mise à la terre. La lame la plus large ou

spina in dotazione non si adatta alla presa di corrente, rivolgetevi ad un elettricista per far

im Bereich der Stecker, Netzsteckdosen und an der Austrittsstelle vom Gerät.

ment of the obsolete outlet.

la prise électrique, demander à un électricien de remplacer la prise hors normes.

콘센트를 교체하십시오.

や3本目の棒は、安全のためのものです。これらのプラグがコンセントの差し込み口に合

stopkontak yang sudah lama itu.

a tomada obsoleta.

розетки устаревшей конструкции.

个比另一个宽。接地类型插头带有两个插片和第三个接地插脚。较宽的插片或

la troisième broche assure la sécurité de l'utilisateur. Si la fiche fournie ne s'adapte pas à

10. PROTECT the power cord from being walked on or pinched, particularly at plugs, conve-

eseguire le modifiche necessarie.

11. NUR das vom Hersteller angegebene Zubehör und entsprechende Zusatzgeräte

10. PROTÉGER le cordon d'alimentation afin que personne ne marche dessus et que rien ne

10. LINDUNGI kabel listrik agar aman dari injakan atau jepitan, terutama pada steker, stop-

10. 전원 코드는 밟히지 않도록 주의하고 특히 전원 플러그 사이, 접속 소켓 및 기기에서

わない場合は、電気工事業者に相談し、コンセントを交換してもらってください。

10. PROTEJA o cabo de alimentação, evitando que seja pisado ou que enrosque, especial-

10. ЗАЩИТИТЕ силовой шнур, чтобы на него не наступали и чтобы он не был пережат,

第三个插脚是为安全目的设置的。如果提供的插头无法插入您的插座，请向电

la prise électrique, demander à un électricien de remplacer la prise hors normes.

nience receptacles, and the point where they exit from the apparatus.

10. EVITATE di calpestare il cavo di alimentazione o di comprimerlo, specie in corrispon-

verwenden.

le pince, en particulier au niveau des fiches, des prises de courant et du point de sortie

kontak terbuka, dan titik yang menonjol dari perangkat itu.

mente nos conectores, nas tomadas elétricas de emprego geral e no ponto onde elas

особенно в местах подсоединения к вилкам, розеткам и в месте выхода из прибора.

나오는 부분에 전원 코드가 끼이지 않도록 보호하십시오.

10. 電源コードは、特にプラグ差し込み部分、延長コード、機器から出ている部分において、

10. PROTÉGER le cordon d'alimentation afin que personne ne marche dessus et que rien ne

11. ONLY USE attachments/accessories specified by the manufacturer.

denza di spine, prese di corrente e punto di uscita dall'apparecchio.

12. NUR in Verbindung mit einem vom Hersteller angegebenen oder mit dem Gerät

工咨询如何更换合适的插座。

de l'appareil.

11. HANYA GUNAKAN kelengkapan/aksesoris yang ditetapkan pabrik.

11. ИСПОЛЬЗУЙТЕ ТОЛЬКО те принадлежности и приспособления, которые

saem do aparelho.

11. 제조업체가 지정한 부속품/액세서리만 사용하십시오.

引っかかって抜けたり挟まれたりしないように保護してください。

12. USE only with a cart, stand, tripod, bracket, or table specified by the manu-

le pince, en particulier au niveau des fiches, des prises de courant et du point de sortie

11. USATE ESCLUSIVAMENTE i dispositivi di collegamento e gli accessori

verkauften Transportwagen, Stand, Stativ, Träger oder Tisch verwenden. Wenn ein

11. UTILISER UNIQUEMENT les accessoires spécifiés par le fabricant.

12. GUNAKAN hanya dengan kereta dorong, penyangga, tripod, braket atau

10. 保护电源线防止被脚踩踏或被夹紧，尤其是在插头、方便插座和机身电源线

предусмотрены изготовителем.

11. USE SOMENTE acessórios/apetrechos especificados pelo fabricante.

12. 제조업체에서 지정하거나 기기와 함께 판매되는 카트, 스탠드, 받침대, 브

11. アタッチメントや付属品は、必ずメーカー指定のものをご利用ください。

facturer, or sold with the apparatus. When a cart is used, use caution when

specificati dal costruttore.

Transportwagen verwendet wird, beim Verschieben der Transportwagen/Geräte-Einheit

de l'appareil.

12. UTILISER uniquement avec un chariot, un pied, un trépied, un support ou

meja yang ditetapkan oleh pabrikan, atau yang dijual bersama perangkat

12. ИСПОЛЬЗУЙТЕ только с тележкой, стендом, штативом, кронштейном или

12. USE somente com um carrinho, pedestal, tripé, suporte ou mesa espe-

的引出处。

라켓 또는 테이블에서만 사용하십시오. 카트를 사용하는 경우, 이동 시 카

12. カートやスタンド、三脚、ブラケット、テーブル等は、メーカー指定のものか、こ

moving the cart/apparatus combination to avoid injury from tip-over.

12. USATE l'apparecchio solo con carrelli, sostegni, treppiedi, staffe o tavoli

vorsichtig vorgehen, um Verletzungen durch Umkippen zu verhüten.

11. UTILISER UNIQUEMENT les accessoires spécifiés par le fabricant.

une table spécifié par le fabricant ou vendu avec l'appareil. Si un chariot

столом, которые предусмотрены изготовителем или наглухо прикреплены к

tersebut. Bila menggunakan kereta dorong, gunakan secara hati-hati ketika

cificados pelo fabricante ou vendidos com o aparelho. Quando utilizar um

트와 기기가 넘어져 부상을 입지 않도록 주의하십시오.

11. 只能使用制造商指定的连接部件/附件。

12. UTILISER uniquement avec un chariot, un pied, un trépied, un support ou

12. 只能使用制造商指定的或随设备售出的手推车、支座、三角架、托

の装置用に販売されているものを必ずご利用ください。カートに装置を載せ

13. UNPLUG this apparatus during lightning storms or when unused for long

specificati dal produttore o venduti unitamente all'apparecchio stesso. Se us-

13. Bei Gewitter oder wenn das Gerät lange Zeit nicht benutzt wird, das Netzkabel

est utilisé, déplacer l'ensemble chariot-appareil avec précaution afin de ne

прибору. При использовании тележки будьте осторожны, когда передвигаете

memindahkan secara bersama-sama kereta dorong/perangkat tersebut untuk

carrinho, tenha cuidado ao movimentar o conjunto aparelho/carrinho para

13. 낙뢰시 또는 장기간 사용하지 않을 때는 기기의 전원을 빼놓으십시오.

て動かす際は、つっかけて怪我をしないよう注意してください。

periods of time.

ate un carrello, fate attenzione quando lo spostate con l'apparecchio collocato

HERAUSZIEHEN.

pas le renverser, ce qui pourrait entraîner des blessures.

тележку вместе с прибором — переворачивание может привести к травме.

une table spécifié par le fabricant ou vendu avec l'appareil. Si un chariot

menghindari cedera karena perangkat terguling.

evitar danos com a queda do mesmo.

su di esso, per evitare infortuni causati da un eventuale ribaltamento del carrello stesso.

架或支撑台。如果使用手推车，在移动装有设备的手推车时应注意

est utilisé, déplacer l'ensemble chariot-appareil avec précaution afin de ne pas le renverser, ce qui pourrait entraîner des blessures.

安全，避免设备翻落。

13. Durante i temporali o in caso di inutilizzo prolungato dell'apparecchio, SCOLLEGATELO

14. ALLE Reparatur- und Wartungsarbeiten von qualifiziertem Kundendienstpersonal

13. DÉBRANCHER l'appareil pendant les orages ou quand il ne sera pas utilisé pendant

13. CABUT perangkat ini selama petir atau bila tidak digunakan untuk waktu yang lama.

13. DESLIGUE este aparelho da tomada elétrica durante tempestades com relâmpagos ou

13. ОТСОЕДИНЯЙТЕ прибор ОТ СЕТИ во время грозы или если он не используется

13. DÉBRANCHER l'appareil pendant les orages ou quand il ne sera pas utilisé pendant

14. 모든 서비스는 자격을 갖춘 서비스 전문가에게 의뢰하십시오. 전원 코드나 플러그

dalla presa di corrente.

durchführen lassen. Kundendienst ist erforderlich, wenn das Gerät auf irgendwelche

longtemps.

14. REFER all servicing to qualified service personnel. Servicing is required when the ap-

14. SERAHKAN semua servis ke petugas ahli. Servis diperlukan apabila perangkat tersebut

quando não seja utilizado por longo período.

длительное время.

13. 在雷电天气或长时间不使用情况下，应拔下设备插头。

longtemps.

14. Per qualsiasi intervento, RIVOLGETEVI a personale di assistenza qualificato. È neces-

Weise beschädigt wurde, z. B. wenn das Netzkabel oder der Netzstecker beschädigt

가 손상된 경우, 기기 안으로 액체가 들어가거나 물건을 떨어뜨린 경우, 기기가 비나

13. 雷を伴う嵐の際、または長期間使用しない場合は、プラグをコンセントから抜いてくだ

14. CONFIER toute réparation à du personnel qualifié. Des réparations sont nécessaires

paratus has been damaged in any way, such as power supply cord or plug is damaged,

sudah rusak dalam cara apapun, seperti kabel catu daya atau steker rusak, cairan ter-

14. DEIXE toda a manutenção sob a responsabilidade de uma equipe de manutenção

14. ПОРУЧИТЕ все обслуживание квалифицированному техническому персоналу.

14. 所有维修均应由合格的维修人员执行。如果设备因下列情况损坏，应进行维

sario intervenire sull'apparecchio ogniqualvolta è stato danneggiato, in qualsiasi modo;

wurden, wenn Flüssigkeiten in das Gerät verschüttet wurden oder Fremdkörper

14. CONFIER toute réparation à du personnel qualifié. Des réparations sont nécessaires

liquid has been spilled or objects have fallen into the apparatus, the apparatus has been

si l'appareil est endommagé d'une façon quelconque, par exemple : cordon ou prise

물에 젖은 경우, 기기가 정상적으로 작동하지 않는 경우 또는 기기를 떨어뜨린 경우

さい。

tumpah atau ada benda yang jatuh ke dalam perangkat, perangkat sudah terpapar hujan

qualificada. É necessário realizar a manutenção quando por algum motivo o aparelho

Обслуживание требуется при каком-либо повреждении прибора, например, при

ad esempio la spina o il cavo di alimentazione sono danneggiati, si è versato liquido

hineinfielen, wenn das Gerät Regen oder Feuchtigkeit ausgesetzt war, nicht normal

修：电源线或插头损坏、液体泼溅到设备上或异物进入设备，设备暴露在雨水

si l'appareil est endommagé d'une façon quelconque, par exemple : cordon ou prise

exposed to rain or moisture, does not operate normally, or has been dropped.

d'alimentation endommagé, liquide renversé ou objet tombé à l'intérieur de l'appareil,

atau lembab, tidak bekerja normal, atau perangkat pernah jatuh.

와 같이 기기가 손상되었을 때는 서비스를 받아야 합니다.

14. 整備の際は、資格のある整備担当者に必ずご相談ください。電源コードやプラグの損

tiver sido danificado de alguma forma, como por exemplo por dano do cabo de alimen-

повреждении шнура питания или вилки, если на прибор была пролита жидкость или

sull'apparecchio o sono caduti oggetti su di esso, l'apparecchio è stato esposto alla piog-

funktioniert oder fallen gelassen wurde.

15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with

d'alimentation endommagé, liquide renversé ou objet tombé à l'intérieur de l'appareil,

exposition de l'appareil à la pluie ou à l'humidité, appareil qui ne marche pas normale-

15. JANGAN paparkan perangkat dengan tetesan dan percikan. JANGAN letakkan benda

或潮湿环境中而无法正常工作，或摔落到地上。

tação elétrica ou do seu conector, por derramamento de líquido ou queda de objetos no

15. 기기에 물을 떨어뜨리거나 뿌리지 마십시오. 화병과 같이 물이 담긴 물체를 기기 위

傷、液体や異物が装置内に入り込んだ場合、装置が雨や湿気に曝された場合、正常に

на него упал какой-либо предмет, если прибор подвергся воздействию дождя или

gia o all'umidità, non funziona normalmente o è caduto.

15. Dieses Gerät vor Tropf- und Spritzwasser SCHÜTZEN. KEINE mit Wasser gefüllten

liquids, such as vases, on the apparatus.

ment ou que l'on a fait tomber.

exposition de l'appareil à la pluie ou à l'humidité, appareil qui ne marche pas normale-

yang penuh dengan cairan, seperti pot bunga di atas perangkat tersebut.

aparelho, se o aparelho tiver sido exposto à chuva ou à umidade, não esteja operando

сырости, не функционирует нормально или если он падал.

에 올려놓지 마십시오.

作動しない場合、装置を落とした場合など、装置が何らかの状態で損傷した場合は、

15. 不要将本设备暴露在可能滴水和溅水的地方。不要将装有液体的容器（如花瓶

15. NON esponete l'apparecchio a sgocciolamenti o spruzzi. NON appoggiate

Gegenstände wie zum Beispiel Vasen auf das Gerät STELLEN.

16. The MAINS plug or an appliance coupler shall remain readily operable.

15. NE PAS exposer cet appareil aux égouttures et aux éclaboussements. NE PAS poser

16. Steker INDUK atau tusuk kontak harus tetap siap digunakan.

ment ou que l'on a fait tomber.

normalmente ou tenha sofrido queda.

15. НЕ допускайте попадания на прибор капель или брызг. НЕ ставьте на прибор сосуды

16. MAINS 플러그나 기기용 커플러는 작동가능한 상태로 남아 있어야 합니다.

整備が必要です。

等）放在本设备顶部。

sull'apparecchio oggetti pieni di liquidi, ad esempio vasi da fiori.

16. Der Netzstecker oder eine Gerätesteckverbindung muss leicht zu betätigen sein.

17. The airborne noise of the Apparatus does not exceed 70dB (A).

des objets contenant de l'eau, comme des vases, sur l'appareil.

17. Kebisingan Perangkat ini yang bersumber dari udara tidak melebihi 70dB (A).

с жидкостью, например, вазы.

15. NE PAS exposer cet appareil aux égouttures et aux éclaboussements. NE PAS poser

15. NÃO exponha o aparelho a respingos ou goteiras. NÃO coloque objetos cheios de

17. 기기의 공기매개 잡음은 70dB을 초과하지 않아야 합니다.

15. 水滴や水しぶきに曝さないでください。液体の入った花瓶などを装置の上に置かない

16. 电源插头或电器转接头应保持在随时可用的状态。

16. La spina ELETTRICA o l'accoppiatore per elettrodomestici deve restare prontamente

17. Der Luftschall des Geräts überschreitet 70 dB (A) nicht.

18. Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a

16. La prise SECTEUR ou un coupleur d’appareil électrique doit rester facilement utilisable.

18. Perangkat dengan konstruksi KELAS I harus dihubungkan ke stopkontak soket INDUK

16. Вилка электропитания или штепсель прибора должны быть легко доступны.

líquidos, tais como vasos, sobre o aparelho.

des objets contenant de l'eau, comme des vases, sur l'appareil.

18. CLASS I 구조의 기기는 MAINS 소켓 콘센트에 보호 접지 연결 방식으로 연결되어

でください。

utilizzabile.

18. Das Gerät mit Bauweise der KLASSE I muss mit einem Schukostecker mit Schutzleiter in

protective earthing connection.

17. Le bruit aérien de l'appareil ne dépasse pas 70 dB (A).

17. 本装置的空气噪声不超过 70dB (A)。

17. Уровень воздушного шума этого аппарата не превышает 70 дБ (A).

dengan sambungan pembumian untuk pengaman.

16. O plugue MAINS (rede elétrica) ou um acoplador de aparelho deve estar sempre pronto

16. La prise SECTEUR ou un coupleur d’appareil électrique doit rester facilement utilisable.

야 합니다.

16.

17. Il rumore aereo dell'apparecchio non supera i 70 dB (A).

eine Netzsteckdose mit Schutzleiter eingesteckt werden.

19. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or

18. L'appareil de construction de CLASSE I doit être raccordé à une prise SECTEUR dotée

18. Аппараты конструкции КЛАССА I необходимо подсоединять к СЕТЕВОЙ розетке с

19. Untuk mengurangi resiko kebakaran atau sengatan listrik, jangan paparkan perangkat ini

para operação.

18. 应将符合 I 类标准的设备连接到带有接地保护装置的主电源插座。

17. Le bruit aérien de l'appareil ne dépasse pas 70 dB (A).

19. 화재나 감전 위험을 줄이려면 이 기기를 빗물 또는 습기에 노출시키지 마십시오.

17. 装置の空気伝播音は70 dB（A）を超えません。

18. L'apparecchio appartenente alla CLASSE I deve essere collegato ad una presa elettrica

19. Dieses Gerät darf nicht Regen oder Feuchtigkeit ausgesetzt werden, um das Risiko von

moisture.

d'une protection par mise à la terre.

защитным соединением для заземления.

dengan hujan atau lembab.

17. O ruído aéreo do Aparelho não ultrapassa 70 dB (A).

18. L'appareil de construction de CLASSE I doit être raccordé à une prise SECTEUR dotée

19. 为降低起火或电击危险，不要将本设备暴露在雨中或潮湿环境下。

20. 이 제품을 고치려고 시도하지 마십시오. 그렇게 하면 사람이 다치거나 제품이 고장

18. クラスI構造の装置は保護接地接続のある主電源の壁コンセントに接続してください。

dotata di messa a terra di protezione.

Bränden oder Stromschlägen zu verringern.

20. Do not attempt to modify this product. Doing so could result in personal injury and/or

19. Чтобы уменьшить риск возгорания или поражения электрическим током, не

19. Pour réduire les risques d'incendie ou de choc électrique, ne pas exposer cet appareil à

20. Jangan coba-coba memodifikasi produk ini. Melakukannya dapat menyebabkan cedera

18. O aparelho com construção CLASSE I deve estar conectado à tomada da rede elétrica

d'une protection par mise à la terre.

20. 不要尝试改装本产品。否则可能会导致人身伤害和/或产品故障。

을 일으킬 수 있습니다.

19. Per ridurre il rischio di incendio o folgorazione, non esponete questo apparecchio alla

20. Nicht versuchen, dieses Produkt zu modifizieren. Ansonsten könnte es zu Verletzungen

19. 火災や感電の危険を避けるため、本機器は雨や湿気のある場所にさらさないでくださ

product failure.

допускайте попадания на этот аппарат дождя или влаги.

la pluie ou à l'humidité.

diri dan/atau kerusakan produk.

com ligação à terra.

19. Pour réduire les risques d'incendie ou de choc électrique, ne pas exposer cet appareil à

pioggia o all'umidità.

und/oder zum Produktausfall kommen.

21. Operate this product within its specified operating temperature range.

21. 이 제품은 명시된 작동 온도 범위내에서 사용하십시오.

20. Не пытайтесь вносить изменения в это изделие. Это может привести к травме и (или)

い。

21. 应在技术规格指定的温度范围内操作此产品。

20. Ne pas essayer de modifier ce produit. Cela risque de causer des blessures et/ou la

21. Jalankan produk ini di dalam jarak suhu kerja yang ditetapkan.

19. Para reduzir o risco de incêndio ou choque elétrico, não exponha este aparelho à chuva

la pluie ou à l'humidité.

20. Non tentate di modificare il prodotto. Tale operazione può causare infortuni e/o il guasto

21. Dieses Produkt muss innerhalb des vorgeschriebenen Temperaturbereichs betrieben

выходу изделия из строя.

défaillance du produit.

20. 本製品の改造は試みないでください。改造した場合、怪我や製品故障の原因となるこ

ou umidade.

20. Ne pas essayer de modifier ce produit. Cela risque de causer des blessures et/ou la

del prodotto stesso.

werden.

21. Эксплуатируйте это изделие в указанном диапазоне рабочих температур.

21. Utiliser ce produit dans sa plage de températures de fonctionnement spécifiée.

とがあります。

20. Não tente alterar este produto. Isso poderá resultar em lesão pessoal e/ou falha do

défaillance du produit.

This symbol indicates that dangerous voltage constituting a risk of

21. Utilizzate questo prodotto entro la gamma di temperatura operativa specificata.

이 기호는 기기에 전기 쇼크 위험을 유발하는 위험한 전압이

Simbol ini menunjukkan bahwa voltase yang berbahaya menimbulkan

produto.

21. 本製品は指定された動作温度範囲内で使用してください。

这个符号表示本设备中存在可能导致触电的危险电压。

21. Utiliser ce produit dans sa plage de températures de fonctionnement spécifiée.

21. Opere este produto dentro da faixa de temperatura de operação especificada.

electric shock is present within this unit.

흐른다는 것을 의미합니다.

resiko atau sengatan yang ada di dalam unit ini.

Dieses Symbol zeigt an, dass gefährliche Spannungswerte, die ein

Этот знак показывает, что внутри прибора имеется опасное

Ce symbole indique la présence d'une tension dangereuse dans

Stromschlagrisiko darstellen, innerhalb dieses Geräts auftreten.

напряжение, создающее риск электрического удара.

Questo simbolo indica la presenza di alta tensione all'interno

l'appareil constituant un risque de choc électrique.

警告。この表示内容を無視して誤った取り扱いをすると、死亡または重

This symbol indicates that there are important operating and mainte-

이 기호는 이 기기와 함께 제공된 문서에 중요한 작동 및 유지

Lambang ini menunjukkan bahwa terdapat petunjuk kerja dan pemeli-

这个符号表示本设备附带的说明书中具有重要的操作和维护

Ce symbole indique la présence d'une tension dangereuse dans

dell'apparecchio, che comporta il rischio di folgorazione.

Este símbolo indica que existe nesta unidade tensão perigosa que

傷を負う可能性が想定される内容です。

nance instructions in the literature accompanying this unit.

Этот знак показывает, что в сопроводительной документации

보수 지침의 내용이 들어 있다는 것을 의미합니다.

haraan penting pada bacaan yang melengkapi unit ini.

Dieses Symbol zeigt an, dass das diesem Gerät beiliegende Handbuch

l'appareil constituant un risque de choc électrique.

说明。

apresenta risco de choque elétrico.

к прибору есть важные указания по его эксплуатации и

Ce symbole indique que la documentation fournie avec l'appareil con-

Questo simbolo indica la presenza di istruzioni importanti per l'uso e la

WARNING: This product contains a chemical known to the State of California to cause cancer and birth

manutenzione nella documentazione in dotazione all'apparecchio.

Este símbolo indica que existem instruções operação e manutenção

defects or other reproductive harm.

importantes na literatura que acompanha esta unidade.

wichtige Betriebs- und Wartungsanweisungen enthält.

обслуживанию.

tient des instructions d'utilisation et d'entretien importantes.

注意。この表示内容を無視して誤った取り扱いをすると、傷害を負う可

Ce symbole indique que la documentation fournie avec l'appareil con-

能性または物的損害が発生する可能性が想定される内容です。

tient des instructions d'utilisation et d'entretien importantes.

Important Product Information

The equipment is intended to be used in professional audio applications. Note: This device is not intended to be connected directly to a public internet

network. EMC conformance to Environment E2: Commercial and Light Industrial.

Testing is based on the use of supplied and recommended cable types. The use of other than shielded (screened) cable types may degrade EMC performance.

Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment.

This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

Authorized under the verification provision of FCC Part 15B. Please follow your regional recycling scheme for batteries, packaging, and

electronic waste.

Information to the user

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Patent Notice

U.S. Patent 5,999,631 Other patents pending

Table of Contents

Table of Contents 1

Overview 2

IntelliMix® Operating Principles 2 Mixer Modes 2 Dual Mixer Operation 2 DFR and Audio Processing 2 Networking 2 Model Variations 2

SCM820 Description 3

Front Panel 3 Rear Panel 4

Signal Path Diagram 5

Operating the Mixer 6

Front Panel Modes 6 Audio Mute and Bypass 6 Monitoring 6

The SCM820 Graphical User Interface 7

Graphical User Interface (GUI) 7 Accessing the GUI 7

Installation 8

Rackmounting 8 Power 8 Typical Audio Connections 8 Furnished Accessories 8 Configuring the Inputs and Outputs 9

Setting IntelliMix 10

Mixer Mode Descriptions 10 IntelliMix Parameters 11 Selecting the Mixer Mode 11 Single or Dual Mixer Operation 11

Dante Software by Audinate 14

Dante Controller 14 Dante Virtual Soundcard 14

Application Examples 15

Creating a Link Group 15 Integrating with Other Systems 15 Configuring for Use with a Choir 15 Internet Calling 16 Logic 16

Digital Feedback Reduction (DFR) 17

Function 17 Basic DFR Setup 17 Assigning DFR 18 Filter Types 18 Filter Width 18

GUI Description 19

Navigation Bar 19 Input Tab 20 Intellimix Tab 21 Digital Feedback Reduction (DFR) Tab 23 Output Tab 24 Link Group Tab 25 Preferences Tab 26 Log On Page 28

Troubleshooting 29

Event Log 30 Front-Panel Error Messages 30

Specifications 31

Analog Connections 31 Digital Signal Processing 31 Networking 31

Networking 12

Network Overview 12 Digital Audio Networking 12

IP Ports and Protocols 32

Connector Diagrams 33

Overview

The Shure SCM820 is an 8-channel digital automatic mixer designed for use in speech applications, including sound reinforcement, broadcasting and audio recording. It dramatically improves audio quality in any application where multiple microphones are required. The mixer uses IntelliMix® technology to select channels to open to the mix bus, while attenuating other channels. The mixing mode is selectable to allow a range of automatic mixing styles.

IntelliMix® Operating Principles

Expanding upon Shure's classic SCM810 IntelliMix technology, the digital SCM820 delivers seamless automatic mixing by combining the following functions:

• Noise Adaptive Threshold (NAT) manages the audio system by distinguishing between dynamic audio (such as speech) and the noise floor (such as air conditioning). It continuously adjusts the activation threshold, so that only speech levels louder than the background noise open a channel.

• MaxBus ensures that only one channel is opened per sound source, reducing comb filtering for clear, intelligible speech.

• Number of Open Microphones Attenuation (NOMA) attenuates system gain as additional channels are opened, providing consistent output levels and better gain before feedback.

• Maintains the perceived ambient sound to achieve a natural sounding audio program even during long pauses in conversation.

Mixer Modes

The mixer operates in one of five Mix Modes: Classic, Smooth, Extreme, Custom or Manual. The first three are factory settings that offer a range of reliable automixing styles. IntelliMix is configurable in Custom mode and turned off in Manual mode.

Classic

Classic mode emulates the default settings of the classic Shure SCM810 automixer. It is renowned for fast-acting, seamless channel gating and consistent perceived ambient sound levels.

Smooth

Smooth mode dynamically balances system gain between open and closed channels. The system gain remains consistent by distributing gain across channels to equal one open channel. This mode incorporates IntelliMix operating principles into a gain sharing mixing style.

Extreme

Extreme is an aggressive variation of Classic mode, configured to achieve maximum gain before feedback by completely attenuating closed channels.

Custom

Custom mode allows individual IntelliMix parameters to be fine-tuned and tailored from the GUI.

Manual

Manual mode deactivates IntelliMix to operate as a standard mixer. Channel and mix equalization, output limiter and mix bus routing are still active in this setting.

Dual Mixer Operation

The SCM820 can operate as a single or dual mixer: Single Mixer: Channels are routed to a single mix bus that sends the same

audio to both Mix A and B outputs. This allows the same program to be sent to different rooms or recording applications. Output gain, parametric equalizer and limiter can be set separately for each mix.

Dual Mixer: Two separate buses provide independent automixes for each mix output. This allows two entirely different mixes to result from the same set of inputs. This is useful when the mixer is being used for two applications. For example, set Mix A to Classic mode for sound reinforcement, and set Mix B to Smooth for a broadcast feed. As a dual mixer, channels can be routed to Mix A, Mix B, Mix A and B, or neither mix bus.

DFR and Audio Processing

The SCM820 features two channels of Digital Feedback Reducer (DFR). DFR uses Shure’s patented Adaptive Notch Filter algorithm to detect feedback and deploy up to 16 narrow-band notch filters, dramatically improving gain-before-feedback in a sound reinforcement system. DFR can be applied to any two channels of the SCM820, including the mix outputs.

Additionally, the mixer provides adjustable input equalization, limiting and a parametric output EQ to optimize the sound in any application.

Networking

DanteTM Digital Audio

Digital audio is carried over standard Ethernet using shielded Cat5e (or higher) cables. Dante provides low latency, tight clock synchronization, and high Quality-of-Service (QoS) to provide reliable audio transport to a variety of Dante devices. Dante audio can coexist safely on the same network as IT and control data, or can be configured to use a dedicated network.

Audio can be played or recorded to a PC or Mac using Dante Virtual Soundcard (DVS), using the computer’s standard Ethernet connection. A license of DVS is included with every SCM820-DAN.

Remote Control

The SCM820 can connect to a computer or 3rd party control system (AMX, Crestron) for remote control and monitoring. The web browser-based graphical user interface (GUI) enables custom IntelliMix configuration and access to additional features.

Linking Mixers

SCM820-DAN mixers can be linked to form large automixes of up to 12 units (96 channels of audio). Mixers in the same link group operate under shared IntelliMix settings. A back-panel auto link button enables mixers to automatically link when they join the network. To link specific mixers, custom groups can be created and managed from the GUI.

Model Variations

The following table describes the four SCM820 model variations:

gateINmute

ovrd

direct out

gateINmute

ovrd

direct out

gnd

gateINmute

ovrd

gnd

direct out

gnd

gateINmute

ovrd

gnd

direct out

DIRECT OUTPUTS 1-8

Description

INTELLIMIX

CHANNEL

line

manual

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

+0dB mic

smooth

+30dB mic

classic

+46dB

extreme

custom

phm 48 VDC

dual mixer

auto link

direct out

INTELLIMIX

CHANNEL

line

manual

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

+0dB mic

smooth

+30dB mic

classic

+46dB

extreme

custom

phm 48 VDC

dual mixer

auto link

direct out

INTELLIMIX

CHANNEL

line

manual

+0dB mic

smooth

+30dB mic

classic

+46dB

extreme custom

phm 48 VDC

dual mixer

auto link

INTELLIMIX

CHANNEL

line

manual

+0dB mic

smooth

+30dB mic

classic

+46dB

extreme custom

phm 48 VDC

dual mixer

auto link

lockout

reset

00:0E:DD:AA:BB:CC

secondary

primary

lockout

reset

00:0E:DD:AA:BB:CC

lockout

reset

00:0E:DD:AA:BB:CC

secondary

primary

lockout

reset

00:0E:DD:AA:BB:CC

Model

Connector Type Network Card

SCM820 Block Standard Ethernet SCM820-DAN Block Dante Digital Audio SCM820-DB25 DB25 Standard Ethernet SCM820-DAN-DB25 DB25 Dante Digital Audio

AUX IN

OUT

SCM820

SCM820-DAN

SCM820-DB25

SCM820-DAN-DB25

mix a

mix b

direct out

AUX IN

OUT

mix a

mix b

direct out

MIX A

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

gateINmute

ovrd

direct out

gateINmute

ovrd

gnd

direct out

MIX OUTPUTS

gnd

direct out

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

direct out

AUX IN

INPUTS 1-8

L +R SUM

AUX IN

INPUTS 1-8

L +R SUM

MIX B

Upgrading to Dante

A standard SCM820 can be upgraded with the Dante Network Interface Card (A820-NIC-DAN) to add full digital audio networking capabilities. This replaces the standard Ethernet port with two Dante network ports. This should only be installed by qualified service personnel. Visit www.shure.com for more details.

SCM820 Description

④

SCM820

1 2 3 4 5 6 7 8

gain

low cut

hi shelf

meter

push to solo | hold to mute

①

②

③ ⑦

Front Panel

① Channel Mode Selection

Press the button to select the function of the channel knobs and monitor LED rings. See the Audio Signal Adjustment section for details on each mode.

② Assignable Channel Knob

Adjusts settings and status for each input:

Rotate: Adjusts a setting. Momentary Press: Solos the channel to the headphone output. Press and Hold: Mutes the audio or bypasses the EQ setting.

③ Monitor LED Ring

13 LED segments display gain setting, input signal meter, IntelliMix gain meter, channel solo, or EQ setting.

④ Channel Status LED

LED Channel Status

Off Channel is closed (attenuated in the automix). Green Channel is open (selected in the automix). Amber Channel EQ is bypassed.

Flicker Red

Solid Red Channel is muted.

⑤ Auxiliary Input Jack (1/8")

Unbalanced aux input sums left and right channels to mono. Front and back panel aux inputs are summed to a mono signal and routed without automixing to the mix outputs.

⑥ Master Output Knob

Adjusts settings and status of the mix outputs. See Front Panel Modes for details.

Rotate: Adjusts output gain or limiter threshold. Momentary Press: Overrides a soloed channel to return the mix to the

headphone output. Press and Hold: Mutes the audio or bypasses the limiter.

⑦ Master LED Ring

Displays gain setting or limiter threshold. A single LED represents each mixer when they are both selected but set to different levels.

⑧ Master Mode Selection

Selects the function (gain or limiter) of the master knob and LED ring.

⑨ Mix Select Button

Selects Mix A, Mix B, or both for adjustment with the master knob and monitoring on the LED ring and headphone output. Note: When both Mix A and Mix B are selected, the headphone output only monitors Mix A.

Signal is clipping. Set the channel to a lower input gain level.

⑤

AUX IN

L+R SUM

⑥

MASTER

⑨

limiter

gain

⑫

LIM

A B

-9

-18

-24

-36

-48

-60

⑧⑩⑪

⑬

IntelliMix

power

ethernet network audio automix link dual mixer

lockout

⑭

HEADPHONE

⑮

⑩ Mix Status Indicator

LED Mix Status

Green

Mix is selected for adjustment and listening on the

headphone output. Amber Limiter is bypassed. Red Mix is muted.

⑪ Audio Output Meters

Monitor the output signal level and limiter threshold for mix A and B.

LIM (Limiter) LEDs

⑫

Illuminate amber when the audio levels exceed the limiter threshold.

⑬ System Status Indicators

The LEDs illuminate to indicate system settings:

LED Color Status

power Green Unit is powered on. ethernet Green Unit is connected to a network.

All connected receive channels

Green

are OK (receiving digital audio as expected).

One or more connected receive channels experiencing a

network audio

Flashing Green

subscription error or is unresolved (transmitting device is off, disconnected, renamed or has incorrect network setting).

Red Clock synchronization problem.

No receive channels connected (routing has not been established).

Two or more mixers are connected in a link group.

automix link

Off

Green

Flashing Green Link Group is configuring. Off Mixer is in standalone mode. Green Mixer is set to Dual Mixer operation.

dual mixer

Off

Mixer is set to Single Mixer operation.

Red Front panel controls are locked.

lockout

Flashing Red

An adjustment is attempted in lockout mode.

⑭ Headphone Volume Knob

Adjust the volume of the headphone output.

⑮ Headphone Output Jack (1/4 in.)

Monitor a mix or a soloed channel.

①

②

① ②

③ ④ ⑦⑥

OUT mix a

mix b

AUX IN

⑤

MIX A

gateINmute

MIX OUTPUTS

ovrd

gnd

direct out

gateINmute

MIX B

ovrd

gnd

gateINmute

ovrd

direct out

AUX IN

L +R SUM

direct out

③

Rear Panel

① Power Switch

Turns the unit on or off.

② AC Power Jack

Supplies AC power to the mixer when plugged into a power source.

gnd

④

direct out

gateINmute

ovrd

gnd

direct out

INPUTS 1-8

⑤ ⑥

INTELLIMIX

CHANNEL

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

manual

gateINmute

ovrd

gnd

smooth classic extreme custom

dual mixer

line

+0dB mic

+30dB mic +46dB

phm 48 VDC

lockout

auto link

reset

00:0E:DD:AA:BB:CC

⑭ ⑮

INTELLIMIX

CHANNEL

DIRECT OUTPUTS 1-8

manual smooth classic extreme custom

dual mixer

line

+0dB mic

+30dB mic +46dB

phm 48 VDC auto link

secondary

primary

lockout

reset

00:0E:DD:AA:BB:CC

⑭ ⑮

INTELLIMIX

manual smooth

classic extreme custom

dual mixer

⑨

⑧⑩

CHANNEL

⑫ ⑬

⑪

line +0dB

mic +30dB

mic +46dB

phm 48 VDC auto link

⑰

secondary

⑱

⑰

⑯

primary

⑱

③ Mix A and Mix B Outputs

Active balanced outputs connect to amplifiers, DSP, mixer, or recording device.

④ Auxiliary Input Jack

Unbalanced aux input sums left and right channels to mono. Front and back panel aux inputs are summed to a mono signal and routed without automixing to the mix outputs.

⑤ Channel Inputs 1–8

Active-balanced microphone- or line-level inputs.

Block Connectors

: Audio +

: Audio −

: Audio ground

gate: Logic gate out mute: Logic mute in ovrd: Logic override in gnd: Logic ground

DB25 Connector Pins: Audio plus, audio negative and audio ground. See Specifications

for details.

⑥ Direct Outputs 1–8

Each channel has a dedicated, impedance-balanced direct output on the back panel that can be selected from one of five stages in the signal path. See Configuring the Inputs and Outputs for details on direct output routing.

⑦ Chassis Ground Screw 1–8

Provides an optional connection for microphone shield wire to chassis ground.

⑧ IntelliMix Select Buttons

Scrolls through IntelliMix presets for each mix output. When

dual mixer is

off, the A button sets the mode for both Mix A and Mix B.

⑪ Input Gain Selection and LED Indicator

Sets the analog input gain level for the selected channel(s), illuminating the green LED. All LEDs are off when the channel's audio source is set to Network from the GUI.

⑫ Phantom Power Button and LED Indicator

Supplies 48 VDC phantom power to the selected channel(s), illuminating the green LED. Phantom Power is disabled in the line (+0dB) gain setting.

⑬ Auto Link Button and LED Indicator

Enables networked SCM820-DAN mixers to automatically form a link group. Link Groups enable a larger audio mix by incorporating inputs from two or more mixers. See Link Groups for more details.

⑭ Lockout Button and LED Indicator

Hold for five seconds to disable front and back panel controls. The front

lockout LED illuminates red (flashing red during an adjustment

panel attempt) and the back panel channel display shows L.

⑮ Reset Button

Press and hold for five seconds to reboot the mixer with default system settings restored.

⑯ Network Ports

RJ-45 jacks for network connection.

⑰ Network Status LED (Green)

Off = no network link On = network link established Flashing = network link active

⑱ Network Speed LED (Amber)

SCM820:

Off = 10 Mbps On = 100 Mbps

⑨ Dual Mixer Button

Sets the SCM820 as a dual mixer, indicated by the green LED.

⑩ Channel Select Button and Display

Press to select a single channel (1–8) or all channels (A) when changing input gain or phantom power.

• When all channels are selected (A), Input Level and Phantom Power LED indicators only illuminate if all channels have the same setting.

• L is displayed when the mixer is in lockout mode.

SCM820-DAN:

Off = 10/100 Mbps On = 1 Gbps

IntelliMix Gain

NOMA

Fader

Limiter

IntelliMix Gain

NOMA

Parametric EQ

IntelliMix A

IntelliMix B

Mute Control

Routing

(Channel)

Routing

(Aux)

Gating Logic

Global/Local (Mix)

Audio Source (Aux)

Audio Source (Channel)

Global/Local (Aux)

Single/Dual Mixer

Headphone Mode

Input Meter

Mode

AUX INPUT

Sum to

Mono

Fader

Master Fader

Direct Output

Selection

Headphone

Mode

Mix

Selection

Mix A Mix B

Input Trim

Line +0 Mic +26 Mic +46

Left

Right

Left

Right

Dante

Network

L/R

LIM

-9

-18

-24

-36

-48

-60

Sum

Mix A

Sum

Mix B

Sum

Mix A

Sum

Mix B

CHANNEL

INPUTS 1 - 8

Dante

Network

Analog

Back Panel

Analog

Front Panel

Analog

Direct Outputs

(1-8)

Dante

Network

Analog

Mix Outputs

(A and B)

Dante

Network

Aux Output

L/R

Dante

Network

Mix A

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1

-2

-3

-4

-6

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1

-2

-3

-4

-6

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1

-2

-3

-4

-6

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1

-2

-3

-4

-6

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1

-2

-3

-4

-6

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1

-2

-3

-4

-6

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1

-2

-3

-4

-6

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

Mix B

Link Group Outputs

from other units

Link Group Outputs

to other units

Output Pad (-0, -20, -46)

Mix A

Analog

Sum

Aux L

Sum

Aux R

Mix B

Analog

Digital Feedback Reducer

DFR

Digital Feedback

Reducer

DFR

Digital Feedback

Reducer

DFR

Signal Path Diagram

The following diagram shows the audio signal path and the routing options for several features (default configuration shown). Use the GUI to change the configuration.

gain

low cut

hi shelf

ch. meter

-∞ dB +18 dB

+0 dB

gain

low cut

hi shelf

ch. meter

gain

low cut

hi shelf

ch. meter

gain low cut

hi shelf

ch. meter

gain low cut

hi shelf

ch. meter

320 Hz25 Hz

92 Hz

-60 dBFS 0 dBFS

-∞ dB +18 dB

+0 dB

+12 dB-12 dB

+0 dB

-16 dBFS

gain

low cut

hi shelf

ch. meter

gain

low cut

hi shelf

ch. meter

gain low cut

hi shelf

ch. meter

gain low cut

hi shelf

ch. meter

320 Hz25 Hz

92 Hz

-60 dBFS 0 dBFS

-∞ dB +18 dB

+0 dB

+12 dB-12 dB

+0 dB

-16 dBFS

gain

low cut

hi shelf

ch. meter

-80 dB 0 dB

-15 dB

gain

low cut

hi shelf

ch. meter

gain

low cut

hi shelf

ch. meter

gain low cut

hi shelf

ch. meter

320 Hz25 Hz

92 Hz

-∞ dB +18 dB

+0 dB

+12 dB-12 dB

+0 dB

gain

low cut

hi shelf

ch. meter

gain

low cut

hi shelf

ch. meter

320 Hz25 Hz

92 Hz

-∞ dB +18 dB

+0 dB

gain

low cut

hi shelf

gain

low cut

hi shelf

gain

low cut

hi shelf

gain

low cut

hi shelf

320 Hz25 Hz

92 Hz

-2 dBFS-50 dBFS

-24 dBFS

-60 dBFS 0 dBFS

-∞ dB +18 dB

+0 dB

+12 dB-12 dB

+0 dB

MASTER

gain

A B

limiter

MASTER

gain

A B

limiter

-16 dBFS

gain

low cut

hi shelf

-80 dB 0 dB

-15 dB

gain

320 Hz25 Hz

92 Hz

-60 dBFS 0 dBFS

-∞ dB +18 dB

+0 dB

+12 dB-12 dB

+0 dB

MASTER

gain

A B

limiter

-16 dBFS

gain

-80 dB 0 dB

-15 dB

Operating the Mixer

AUX IN

MASTER

lockout

power

ethernet

network audio

automix link

dual mixer

LIM

-9

-18

-24

-36

-48

-60

gain

limiter

L+R SUM

gain

low cut

hi shelf

meter

push to solo | hold to mute

1234567

HEADPHONE

IntelliMix®

SCM820

gain low cut hi shelf

meter

push to solo | hold to mute

1 2 3 4 5

IntelliMix®

MASTER

LIM

-9

-18

-24

-36

-48

-60

gain

limiter

A B

MASTER

lockout

power ethernet network audio automix link dual mixer

A B

HEADPHONE

SCM820

Front Panel Modes

For Channels 1-8

and Aux

Channel Inputs

The channel knobs operate in five modes for different types of input signal adjustment and display. Use the front panel mode selection button to select from the following modes.

Channel Gain (gain)

Adjust gain within a 128 dB range while displaying the gain setting on the LED ring. Unity gain is at the 9th LED.

Mix Outputs

The mix output knob operates in two modes to control the mix output. Use the master function button to select one of two modes.

Audio Mute and Bypass

Low Cut (

low cut)

Adjust the frequency of the low cut filter (6 dB/octave from 25 to 320 Hz). Use to remove low-frequency noise such as table vibrations or air-conditioning rumble.

High Shelf (

hi shelf)

Adjust the high shelf boost or cut (± 12 dB at 5 kHz). Use to add presence to muddy vocals, temper sibilant vocals, or enhance the sound of off-axis lavalier microphones.

Input Signal Meter (

LEDs display the input signal level in real-time. Channel gain is adjustable in this mode, and will

ch. meter)

momentarily display channel gain setting during adjustments.

IntelliMix Gain Meter (

LEDs display the IntelliMix attenuation applied

gain and ch. meter)

in realtime. Channel gain is adjustable in this mode, displaying the setting on the LEDs during adjustments.

Output Gain (

Rotate to adjust the output gain of the selected mix. The output signal level is displayed on the meters.

Limiter Threshold (

Rotate to adjust the limiter threshold of the mix (−2 to −50 dBFS). The limiter threshold level is displayed

on the meters.

Mute Channel Input

Press and hold the input channel knob while in gain or ch. meter mode. The channel status LED turns red.

Mute Mix Output

Press and hold the turns red.

Bypass Input EQ

Press and hold the input channel knob while in channel status LED turns amber.

Bypass Output Limiter

Press and hold the LED turns amber.

gain)

limiter)

MASTER knob while in gain mode. The mix status LED

MASTER knob while in limiter mode. The mix status

Mode

Selector

low cut or hi shelf mode. The

For Mix Outputs

Monitoring

Headphone Output

Use the front panel headphone jack for monitoring audio. By default, the headphones monitor the mix prefader/post-EQ (change to post-fader/post-limiter from

GUI > Preferences Tab). Solo to Headphones

A channel can be soloed to the headphone jack.

Solo Channel: Press a channel knob to solo that channel to the headphones. The other LED rings dim to highlight the soloed channel.

Exit Solo: Press the soloed channel knob or press the

return the mix to the headphones.

Input Meters

The front panel channel meters can be set to display real-time signal information. Use the front panel mode selection button to scroll to the desired mode:

IntelliMix®

1 2 3 4 5 6 7 8

gain low cut hi shelf meter

Input Signal Level

The channel meter mode (

ch. meter) displays real-time audio input signal

level for each channel.

IntelliMix Gain

The IntelliMix meter mode (

gain and ch. meter illuminated) displays

IntelliMix gain operation in real-time across the channel LEDs. Channels that gate open will display more gain than channels that are closed (attenuated) in the mix.

Output Meters

The output meters indicate the level of each mix before the digital-to-analog conversion. By default, the meter displays average and peak audio levels.

It is good practice to use −18 dBFS on the SCM820

meter as an approximation of 0 VU on an analog meter.

LED Description Signal Level (dBFS)

Red (7) Clip 0 to -6 Yellow (6) Yellow (5) -9 to -18

Normal peaks

Green (4) Green (3) -24 to -36 Green (2) -36 to -48

Signal Present

Green (1) -48 to -60

Changing the Metering Type

Go to the Preferences tab of the GUI to change the following metering options:

• Meter Type: Change the input and output meters from displaying VU + Peak (default) to VU or Peak.

• IntelliMix Gain Metering: The Input tab of the GUI can display input signal level (default) or IntelliMix gain metering in realtime.

-6 to -9

-18 to -24

Master knob to

AUX IN

L+R SUM

LIM

-18

-24

gain

-36

limiter

-48

-60

-9

The SCM820 Graphical User Interface

reset

primary

00:0E:DD:AA:BB:CC

SCM820-Dan-ffeee5.local 192.168.200.22

Graphical User Interface (GUI)

The SCM820 graphical user interface (GUI) enables comprehensive control of the mixer from a web browser. The GUI is hosted from a webserver embedded on the SCM820, and is accessible from any computer on the network. Use the GUI for the following functions:

• Manage mixers from a remote location.

• Customize IntelliMix parameters.

• Form large automixes with custom link groups.

• Assign the direct outputs in the signal path.

• Configure Redundant or Split networks.

• Set up and monitor DFR for up to two channels in each mixer.

Accessing the GUI

The Shure Web Server Discovery application finds all Shure devices on the network that feature a web-based GUI. Follow these steps to install the software and access the SCM820 GUI:

① Install the Shure Discovery application

Load the Shure USB drive and install the application. This automatically installs the required Bonjour device discovery tool on the computer. This application is also available from www.shure.com.

System Requirements

• Windows: Windows XP (32 and 64 bit), Windows Vista and Windows 7

• Apple: Mac OSX 10.6.0 and higher

• Latest version of Adobe Flash Player

• Bonjour software (bundled with the Shure Discovery app)

• The GUI is supported on the following web-browsers: Internet Explorer, Firefox, Safari and Chrome.

② Connect the network

Ensure the computer and the mixer are on the same network.

③ Launch the Discovery application

The app displays all Shure devices that feature a GUI.

④ Open the SCM820 GUI

Double-click on a device to open its GUI in a web browser.

⑤ Bookmark the GUI (recommended)

Bookmark the device's DNS name to access the GUI without the Shure Discovery app.

Accessing the GUI without the Discovery App

If the Discovery application is not installed, the SCM820 GUI can be accessed by typing the DNS name into an internet browser. The DNS name is derived from model of the unit (SCM820 or SCM820-DAN), in combination with the last three bytes (six digits) of the MAC address, and ending in .local.

Format Example: If the MAC address of a unit is 00:0E:DD:AA:BB:CC, then the link is written as follows:

• SCM820-DAN: http://SCM820-DAN-aabbcc.local

• SCM820: http://SCM820-aabbcc.local

① ② ③

secondary primary

IntelliMix®

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

push to solo | hold to mute

SCM820

LIM

MASTER

A B

A UX IN

HEADPHONE

net

ether

k audio

-1

omix link

-2

gain

dual mi

-3

limi

-4

L+R SUM

-6

lockout

④ ⑤

OUT

AUX IN

mix a

mix b

direct out

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

gateINmute

ovrd

direct out

gnd

direct out

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

direct out

SCM820-DAN SCM820-Dan-ffeee5.local 192.168.200.22

ROOM 5

CONFERENCE

SCM820

SCM820-ffaaa2.local

192.168.200.23

INTELLIMIX

CHANNEL

line

manual

gateINmute

ovrd

gnd

+0dB mic

smooth

+30dB mic

classic

+46dB

extreme

secondary

custom

phm 48 VDC

lockout

IntelliMix

dual mixer

direct out

Dante

primary

reset

00:0E:DD:AA:BB:CC

Inputs 1-8

Aux In

L + R

SUM

Inputs 1-8

Aux In

MIX OUTPUTS

MIX A

MIX B

L + R

SUM

Inputs 1-8

Aux In

MIX B

L + R SUM

MASTER

lockout

ethe

net

k audio

aut

omix link

dual mi

LIM

-1

-2

-3

-4

-6

gain

limi

HEADPHONE

AUX IN

L+R SUM

Installation

Direct Outputs 1-8

Power

Connect the unit to AC power using the supplied IEC cable. Turn on the power switch.

INTELLIMIX

OUT

AUX IN

R L

mix a

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

mix b

direct out

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

direct out

CHANNEL

line

manual

gateINmute

ovrd

gnd

gateINmute

ovrd

gnd

+0dB mic

smooth

+30dB mic

classic

+46dB

extreme

secondary

primary

custom

phm 48 VDC

lockout

reset

dual mixer

direct out

00:0E:DD:AA:BB:CC

auto link

Rackmounting

Rackmount the mixer using the screws and washers supplied in the Hardware Kit. Follow these general best practices when rackmounting equipment:

• Ambient temperature of the rack should not exceed specified operating temperature range of the device.

• Keep fan inlet and side air vents clear from obstructions and provide adequate space for airflow within the rack.

• When possible, provide 1 RU of empty space between each device.

LIM

MASTER

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

gain

ow cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

push to solo | hold to mute

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi t

-4 8

L+R SUM

-6 0

lockout

LIM

MASTER

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi t

-4 8

L+R SUM

-6 0

lockout

LIM

MASTER

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi t

-4 8

L+R SUM

-6 0

lockout

Furnished Accessories

Hardware Kit (SCM820, SCM820-DAN) 90A20082 Hardware Kit (SCM820-DB25,

SCM820-DAN-DB25) Ethernet cable 95A20437

Power Cable

USB Flash Drive 95A20438

Power Cable by Region Part Number

US 95B8389 Brazil 95A14336 Argentina 95A14335 Europe 95C8247 UK 95A8713 Japan 95B9021 China 95B9073 Korea 95B9074 Australia 95A9128

90BA8100

region dependent, see table

Typical Audio Connections

① Channel Inputs

• Microphones

• Insert send from a mixer

• Dante network audio

③ Mix Outputs

• Amplifier

• Powered speakers

• Mixer channel inputs

② Aux Inputs

Aux-level sound sources:

• MP3 player

• Computer headphone output

• CD player

④ Direct Outputs

• Insert returns to a mixer

• Recording device

• Mixer channel inputs

Configuring the Inputs and Outputs

Unless where noted, configurations can be made from the hardware or from the GUI.

Inputs

① Select the Audio Source (GUI only)

• Analog (default): Audio is from a microphone or line-level audio source connected to a channel input on the mixer back panel.

• Network: Audio is from the Dante digital audio network. Go to the Inputs tab of the GUI to select Network audio for each desired channel. Dante Controller software is required to properly route audio to the channel inputs.

② Select the Input Gain

Select the analog input gain for each channel. No gain is applied for analog line-level or when the audio source is set to Network.

• Mic (+46dB): For less sensitive microphones, such as dynamics.

• Mic (+26dB): For loud talkers or sensitive microphones such as condensers.

• Line (+0dB): For line-level sources such as mixer inserts.

③ Supply Phantom Power

Supply 48 V phantom power to the channel when using condenser microphones. (Phantom power is disabled when Input gain is set to Line.)

④ Adjust Channel EQ

Adjust the high- and low-frequency equalization to improve intelligibility and reduce undesired noise:

• Low Cut: Ideal for attenuating low-frequency vibration caused by table vibrations or air-conditioning rumble. Adjust the frequency of the 12 dB/ octave filter from 25 - 320 Hz.

• High Shelf: For tempering sibilant speech or enhancing the sound of offaxis microphones. Use this to boost or cut the signal by 12 dB at 5 kHz with a slop of 12dB/octave.

Direct and Mix Outputs

⑤ Assign the Direct Outputs (GUI Only)

Assign the Direct Output for each channel from the Output tab of the GUI.

• Pre-EQ: After the Input Gain

• Post-EQ: After the EQ blocks

• Post-Fader: After the channel fader

• IntelliMix: After the IntelliMix gating decision

• IntelliMix NOMA: After IntelliMix gating and NOMA decisions

⑥ Set Mix Output Level (GUI Only)

Set the Output level according to the input of the connecting equipment:

• Line (-0) (default): No attenuation to the output level.

• Aux (-20): The signal is attenuated 20 dB to avoid clipping a line input.

• Mic (-46): The signal is attenuated 46 dB to match a microphone input.

⑦ Set the Limiter

The output limiter prevents distortion during loud program peaks without affecting normal program levels. This prevents overloading the devices connected to the mixer outputs.

⑧ Adjust the Output Gain

Adjust the overall output level of the mix.

Auxiliary (Aux) Input

The SCM820 features two auxiliary inputs: an 1/8” jack on the front panel and a back panel input (block connector or RCA connectors, depending on the model). Each input sums the left and right channel to a mono signal. This mono signal is routed directly to the mix outputs, bypassing the automixing process. Use this input for sources such as an MP3 player or computer speaker output.

Digital Channels

When the mixer is connected to a Dante network, the left and right channels are accessible before they sum to the mono signal for the mix outputs. Use the Aux L and Aux R channels in Dante Controller to route audio to and from the aux channel.

Setting IntelliMix

-15 dB -15 dB

-15 dB

The SCM820 uses IntelliMix to select channels to open in a mix, while attenuating the gain of closed channels. IntelliMix is available in three presets and can be customized to excel in any application where multiple microphones are used at once. In all modes (except Manual), MaxBus ensures that only one channel is opened per sound source.

Mixer Mode Descriptions

The SCM820 features five mix modes: Classic, Extreme, Smooth, Custom or Manual.

Classic

Classic mode emulates the classic Shure SCM810 automixer (in its default settings). It is renowned for fast-acting, seamless channel gating and consistent perceived ambient sound levels. The Classic mode excels in most applications, specifically sound reinforcement and teleconferencing.

Gating Style: Full Gain Scaling: Fixed Off Attenuation: −15 dB Last Mic Lock On: Enabled

Smooth

Smooth dynamically balances system gain between open and closed channels. The system gain remains consistent by distributing gain across channels to equal one open channel. It incorporates IntelliMix operating principles into a gain sharing mixing style, making it ideal for broadcast and recording applications.

Gating Style: Relative Gain Scaling: Adaptive Off Attenuation: Disabled Last Mic Lock On: Disabled

Tip: Unroute all unused channels to the mix bus. This will ensure the

most consistent noise floor in Smooth mode.

Channel Gain in Classic Mixer

1 Talker

Full gain is applied as the channel opens; off attenuation gain is applied to all channels.

Channel Gain in Smooth Mixer

1 Talker

-15 dB

Relative gain is applied to the open channel; all channels adaptively attenuate to maintain system gain.

2+ Talkers

-15 dB

As additional channels open, NOMA factor decreases the level of all channels.

2+ Talkers

-15 dB

As additional channels open, gain is adaptively distributed across all channels to maintain system gain.

Extreme

Extreme is an aggressive variation of the Classic mode, configured to achieve maximum gain before feedback by completely attenuating closed channels. Only open channels add to the system levels and ambient sound. Extreme mode is designed for sound reinforcement applications.

Gating Style: Full Gain Scaling: Fixed Off Attenuation: −110 dB Last Mic Lock On: Disabled

Manual

Manual mode deactivates IntelliMix to allow the SCM820 to operate as a standard mixer. All Channel Status LEDs remain on in this mode to indicate there is no IntelliMix attenuation. Channel and mix equalization, output limiter and mix bus routing are still active in this setting.

Tip: Be careful when switching to Manual mode, as all microphones will gate open to full gain, which may result in feedback.

Channel Gain in Extreme Mixer

1 Talker

-15 dB

Full gain is applied to the open channel. Closed channels are fully attenuated.

2+ Talkers

As additional channels open, NOMA factor decreases the level of all channels.

Custom

Custom mode allows IntelliMix parameters to be fine-tuned and tailored from the GUI. The mixer automatically switches to Custom once a parameter is changed in Classic, Extreme or Smooth mode. Theses configurations are saved to the device and will persist after the mixer is turned off and restarted. Custom configurations can also be saved as a file to a computer and loaded onto the device for quick recall.

OUT

mix a

mix b

AUX IN

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

gateINmute

ovrd

gnd

direct out

lockout

line

manual smooth classic extreme custom

dual mixer

+0dB mic +30dB mic

phm 48 VDC

auto link

+46dB

reset

primary

secondary

CHANNEL

INTELLIMIX

00:0E:DD:AA:BB:CC

lockout

line +0dB

mic

+30dB mic

phm 48 VDC

auto link

+46dB

reset

primary

secondary

CHANNEL

00:0E:DD:AA:BB:CC

IntelliMix Parameters

Gating Style

Determines the way gain is applied to open channels.

Full

Channels open at full gain (as adjusted by the NOMA factor).

Relative

Channels open at a gain level that varies with the input signal level— quieter signals receive less gain than loud signals. As the input signal level increases, more gain is applied to the channel.

Gain Scaling

Determines off attenuation and its effect on the total system gain.

Fixed

Off attenuation is a fixed amount. Total system gain varies with the number of open channels.

Adaptive

Off attenuation is adjusted to maintain a uniform system gain comparable to that of a single open channel.

Selecting the Mixer Mode

Press the Mix A or Mix B button on the mixer back panel to scroll through the five modes. From the IntelliMix tab of the GUI, you can select a preset or configure the IntelliMix as a Custom setting.

Mixes A and B have the same IntelliMix settings when the SCM820 is to Single Mixer Operation (default).

Single or Dual Mixer Operation

The mixer can be set to perform one or two automixes:

• Single Mixer (default): Channels are routed to a single mix bus that sends the same audio to both Mix A and B outputs. Limiter and master gain can still be set independently for both outputs.

• Dual Mixer: Two separate buses provide independent automixes for each mix output. In this setting, two entirely different mixes can result from the same set of inputs.

Enable dual mixer operation by pressing the Dual Mixer button on the back panel or from GUI > IntelliMix Tab.

Example Dual Mixer Applications:

• Set Mix A to Classic mode for sound reinforcement, and set Mix B to Smooth for a broadcast feed.

• Mix A to Classic mode for sound reinforcement, and Mix B for Manual for recording.

• Route channels 1-4 to Mix A and 5-8 to Mix B to run independent automixes for two different locations from one device.

Off Attenuation

The amount of attenuation applied to closed channels.

Last Mic Lock On

Avoids ambient dropout by keeping at least one channel open at all times. The last channel opened remains open until another takes its place.

Number of Open Microphones Attenuation (NOMA)

System gain is attenuated as additional channels are opened in a mix. This is configured per doubling of open channels, adjustable from 1– 6 dB for each mix that has Gain Scaling set to Fixed.

Maximum Number of Open Microphones (Max NOM)

Restricts the number of microphones that can be open at a time in a mix. This is adjustable from 1 ("filibuster mode") to maximum (unlimited).

Hold Time

Determines the minimum amount of time that a channel is gated open.

Back Panel

Selecting the Mix Mode

Press to engage Dual Mixer

operation, illuminating the LED

INTELLIMIX

manual smooth

classic extreme custom

dual mixer

GUI

operation

Selecting the Mix ModeSelect Dual Mixer

Networking

Network Overview

For most installations, the SCM820 can connect to a computer either directly or though a network switch ("Link-Local" connections). Connect multiple mixers to a switch in a star configuration to ensure reliable networking (each unit connects directly to the switch).

In some cases, computer settings or programs may interfere with the network. The majority of these connection issues can be solved by using a DHCP-enabled router*. Most routers include a DHCP server, while switches do not.

*Note: DHCP servers are not recommended for redundant network configurations. See Redundant Network Recommendations for more details.

Typical Network Setups

IntelliMix®

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

SCM820

LIM

MASTER

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

Single Mixer

The SCM820 can connect directly to a computer. (This setup may take a minute or longer to establish a connection between devices.)

Multiple Mixers

Connect multiple mixers together in a star configuration using a DHCPenabled router for the most reliable network setup.

Basic Networking Requirements

To network SCM820 mixers, ensure the setup meets the following requirements:

• Use shielded Cat5e cables (or higher)

• Cable runs limited to 100 m (328 ft.)

• Devices are on the same subnet

Network Best Practices

• Use gigabit ethernet devices

• Use only one DHCP server per network

• Turn off other network interfaces not used to connect to the mixer (including WiFi)

• All mixers must have the same level of firmware revision installed

Digital Audio Networking

Dantetm digital audio is carried over standard Ethernet and operates using standard Internet Protocols. Dante provides low latency, tight clock synchronization, and high Quality-of-Service (QoS) to provide reliable audio transport to a variety of Dante devices. Dante audio can coexist safely on the same network as IT and control data, or can be configured to use a dedicated network.

Data Types on the Network

The SCM820 transports two types of data over the network: Shure Control and Dante Audio and Controller. They are transported to/from the two network ports depending on the mixer's network settings.

Shure Control: The Shure Control carries data for the GUI operation, firmware updates and 3rd party control systems (AMX, Crestron). This network is supported by all SCM820 models.

Dante Audio and Controller: The Dante network carries both the digital audio and the control data for Dante Controller. This network is supported by Dante-enabled SCM820s.

Switch Recommendations for Dante Networking

In addition to the basic networking requirements, Dante audio networks should use a Gigabit network switch or router with the following features:

• Gigabit ports

• Quality of Service (QoS) with 4 queues

• Diffserv (DSCP) QoS, with strict priority

• Recommended: A managed switch to provide detailed information about the operation of each network link (port speed, error counters, bandwidth used)

Dante Network Interface

The Dante network card is a two-port interface that can be configured to enable the following applications:

• Link mixers to expand the audio mix, enabling the addition of up to 12 mixers (96 channels).

• Protect the audio signal with a redundant audio network.

• Isolate Dante audio from the Shure Control network.

• Record audio to a computer without additional hardware.

• Maintain digital audio path to other Dante devices.

• Route an 8-channel automixing insert to another Dante device using a single shielded Cat5e cable.

• Daisy-chain up to four SCM820 mixers.

secondary primary

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

secondary primary

A UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi t

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

Network Modes

The Dante network interface can be configured to operate in one of three modes: Switched, Redundant Audio or Split. This setting determines the types of data that are transported from the Primary and Secondary ports.

Data Transport in each Mode

The following table displays the configuration of the Dante network ports in each Network Mode. Note: Always connect the Primary port to the network that is used for Shure Control.

Dante Port Configuration

Network Mode

Switched (default)

Shure Control Dante Audio and Controller

Secondary Primary

Redundant Audio Dante Redundant Audio

Split Dante Audio and Controller Shure Control Isolate Dante and Shure Control networks

Caution: Disconnect the equipment from the network prior to changing the network mode. This will avoid a network loop that will make the network unstable.

Selecting the Network Mode

1. Disconnect the mixer from the network.

2. Connect the Primary port of the mixer directly to a computer.

3. Go to the Network panel in the GUI:

Preferences > Network

4. Select the Configuration mode. The mixer will reboot once the selection is confirmed.

5. Repeat for each mixer.

Warning: Do not reconnect mixers to the network until the network configuration is the same for all units.

Port Function

Shure Control Dante Audio and Controller

Application

Typical installations of star or daisy-chained networks.

Create a backup audio network.

Network Configurations in Switched Mode (default)

Star Configuration (Recommended)

Connect multiple mixers to a router in a star configuration for the most reliable setup.

Daisy-Chain (up to 4)

Up to four SCM820-DAN mixers can network together by daisy-chain. This is only supported in Switched network mode (default).

Direct to Computer

Connect the Primary port directly to a computer.

Warning: Do Not Make a Network Loop

Avoid the following setups that will render the network unusable:

Star Configuration

(Recommended)

secondary primary

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

IntelliMix®

gain

1 2 3 4 5 6 7 8

w cut

hi shelf

push to solo | hold to mute

Daisy-Chain Direct to Computer

secondary primary

SCM820

secondary primary

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

HEADPHONE

UX IN

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

IntelliMix®

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

t me

push to solo | hold to mute

IntelliMix®

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

t me

push to solo | hold to mute

IntelliMix®

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

t me

push to solo | hold to mute

IntelliMix®

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

t me

push to solo | hold to mute

SCM820

LIM

MASTER

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

SCM820

LIM

MASTER

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

secondary primary

IntelliMix®

1 2 3 4 5 6 7 8

gain

w cut

hi shelf

push to solo | hold to mute

secondary primary

SCM820

LIM

MASTER

A UX IN

HEADPHONE

net

ethe

k audio

-1 8

omix link

-2 4

gain

dual mi

-3 6

limi

-4 8

L+R SUM

-6 0

lockout

secondary primary

Do not connect the

primary to the secondary

port of the same device.

secondary primary

Do not connect the two ports

to the same switch.

secondary primary

Do not connect mixers

together in a loop.

UX IN

MASTER

lockout

ethe

net

k audio

omix link

dual mi

LIM

- 9

-1 8

-2 4

-3 6

-4 8

-6 0

gain

limi

L+R SUM

gain

w cut

hi shelf

push to solo | hold to mute

1 2 3 4 5 6 7 8

HEADPHONE

IntelliMix®

SCM820

UX IN

MASTER

lockout

ethe

net

k audio

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Redundant and Split Networks

The Primary and Secondary ports require dedicated network switches in Redundant Audio and Split modes.

Disable DHCP

secondary primary

Isolated Networks for Each Port in

Redundancy and Split Modes

Redundant Network Recommendations

For the most reliable Redundant network, it is recommended to set up both networks without a DHCP server. Connect each unit to a network switch without DHCP or to a router with DHCP disabled.

If it is not possible to disable the DHCP server, configure the mixer to a static IP address from the GUI (

Note: Use caution when operating a Link Group in a Redundant network. If a Link Group goes down, there will be temporary audio loss on both ports while the group reconfigures.

GUI > Preferences tab > IP Mode > Manual).

Configuring a 100 Mbps Dante network

Gigabit equipment is strongly recommended for Dante network. If this is not possible, configure the 100 Mbps network with the following guidelines:

• Ensure the router has QoS enabled

• Latency settings are set to at least 1 ms Caution: Do not form Link groups on a 100Mbps network, as this will

cause increased traffic and will exceed the network bandwidth.

Setting Latency

Latency is the amount of time for a signal to travel across the system to the outputs of a device. To account for variances in latency time between devices and channels, Dante has a predetermined selection of latency settings. When the same setting is selected, it ensures that all Dante devices on the network are in sync.

The latency setting for Dante devices should be set according to the number of switches in the network. The SCM820 network card has an internal switch chip and counts as a switch. For example, one SCM820 connected to an external switch equals two switches.

Go to

GUI > Preferences Tab to change the setting.

Latency Recommendations

Latency Setting

0.25 ms 3 -

0.5 ms (default) 5 1 ms 10 2 2 ms 10+ 5

*Strongly Recommended

Maximum Number of Switches

1 Gbps Network* 100 Mbps Network

Dante Software by Audinate

Audinate software provides additional function and control of the Dante digital audio network. Visit Audinate's website at www.audinate.com for software installation instructions, additional digital audio networking capabilities and troubleshooting help.

Dante Virtual Soundcard

Dante Virtual Soundcard (DVS) software turns a computer into a Danteenabled device, allowing digital audio traffic to be transmitted and received using the standard Ethernet port.

On Windows, DVS can select Steinberg’s ASIO audio interface or Windows Driver Model (WDM). On Mac OSX, the DVS uses the standard Core Audio interface.

DVS License

Shure provides a free DVS license with the Dante-enabled SCM820 Automatic Mixer (SCM820-DAN) and the Dante Network Interface Card (A820-NIC-Dante). Use your DVS Token on the Audinate website to obtain a single computer License ID for Dante Virtual Soundcard. Without a License ID, the software will not work.

Follow these steps to begin using Dante Virtual Soundcard:

1. Locate your DVS token on the half-page card supplied with the unit.

2. Go to http://www.audinate.com/RedeemDVSToken

3. If not already logged in, you will be asked to log in or register

4. Enter the DVS Token string in the field provided Once validated, a page will be displayed with the following information:

• Your Dante Virtual Soundcard License ID

• Links to follow to download the Dante Virtual Soundcard and Dante Controller applications

Dante Controller

Dante Controller (DC) is a free software program by Audinate that is used to configure and manage a network of Dante devices. Use it to route channels between Dante-enabled devices and to monitor the status of the device, clock, and network.

For proper functionality with the SCM820, use Dante Controller version

3.4.0.0 or higher. Go to Audinate's website for download and installation instructions.

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Creating a Link Group

If additional channels are needed, multiple mixers can link together to create a larger automatic mix. To form a link, Dante-enabled mixers are connected to a gigabit network and assigned to a link group. This enables up to 12 mixers (96 channels) to contribute to the same mix from anywhere on the network.

Mixers in the same link group operate under shared IntelliMix settings. These settings are defined by the first mixer to join the group. When mixers are added, their IntelliMix and network settings are reconfigured to match the group's settings. IntelliMix settings can then be changed from any mixer, automatically updating the rest of the group.

Setting up a Link Group

Link Groups are managed from the Link Group tab of the GUI. Once a mixer joins a group, its front panel Network Audio and Automix Link LEDs will illuminate green. Up to 12 mixers can join a group at a time.

Ensure the Link Group setup meets the following requirements:

• Use SCM820 mixers with the Dante network card (SCM820-DAN or SCM820-DAN-DB25)

• Devices must be on the same subnet

• Use Gigabit (or higher) network switches to connect the devices. 100 Mb networks are not supported.

• Ensure the switches have at least 300 Mbps of available bandwidth for each device. Devices in a Link Group use more network bandwidth than Stand Alone devices.

Automatic Linking

The auto link setting enables SCM820s to automatically form a link group when they join the network. No additional setup from the GUI is required.

Select the other mixers with this function enabled. Mixers with auto linking enabled will display in the Auto Link group in the GUI.

auto link button on the mixer back panel. It automatically links to

Note: Only the first 12 mixers that enable Auto-Link will join the group. If the group is full and an additional mixer attempts to enable Auto Link, it will remain as a Stand-Alone device.

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Setting Mix Outputs in a Link Group

The Local/Global setting determines whether each linked SCM820 Mix Output contains only its own program output, or that of all linked mixers. Go to the Output tab of the GUI to select the mix output.

Note: The Master level control is independent of the Local/Global setting. The output level and limiter setting of each mixer is affected only by its own Master control.

Global (default): All linked channels appear at the mixer outputs. This is the default setting for the mixer.

Local: Only its own eight input channels appear at the mixer's Mix Outputs.

Aux Channel

The aux channel can be set to Local or Global from GUI > Inputs Tab. Local Aux keeps the Aux signal from appearing on the mix output of other networked boxes

Integrating with Other Systems

DFR or External Equalizer

When using DFR channels or setting up a sound system an external processor/equalizer, begin by setting the SCM820 to Manual. This activates (gates open) all channels, so every possible feedback path is open.

After equalizing the sound system and "ringing out" the room with the feedback controller, set the mixer back to an IntelliMix mode.

Shure ULX-D Digital Wireless System

Shure ULX-D™ Digital Wireless offers uncompromising audio clarity and extremely efficient RF performance with rugged, intelligent, encryptionenabled hardware. The SCM820-DAN can provide automixing for the Dual or Quad ULX-D receiver by connecting to the Dante digital audio network.

As Channel Inserts

IntelliMix can be used as a processing insert on an analog console or over the digital audio network. Be sure to set the console inserts to post-fader. If this is not available, be sure to mute audio at the SCM820 in order to remove the signal from the automix.

Analog Insert

1. Connect the send from the mixer insert to the input of the SCM820.

2. Set the channel input to Line level (+0).

3. Connect return from the mixer insert to the direct output of the SCM820.

4. Set the direct output to IntelliMix NOMA.

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Dante Insert

1. Open Dante Controller software.

2. Route the console sends to the SCM820 inputs.

3. Route the SCM820 direct outputs to the console returns.

4. Set the channel Source to Network from the Inputs tab of the GUI.

5. Set the direct output to IntelliMix NOMA on the Outputs tab.

Custom Groups

To configure specific Link Groups, create a custom group in the GUI. Custom groups are helpful for managing multiple Link Groups across multiple mixers on the same network. To set up a Custom Group:

1. Open the Link Group tab of the GUI.

2. Click the New Group button create a group.

3. Name the group.

4. Drag and drop mixers to the group.

SCM820-1

SCM820-2 SCM820-3 SCM820-4 SCM820-5 SCM820-6

Group 1 SCM820 SCM820-1

SCM820-3 SCM820-4 SCM820-5 SCM820-6

Configuring for Use with a Choir

Use the SCM820 to manage a group of microphones that are providing sound reinforcement for a choir.

1. Connect microphones to the mixer.

2. Set the appropriate level for the microphones.

3. Open the IntelliMix tab of the GUI.

4. Select Classic IntelliMix mode.

5. Engage the Gate Group box for each choir microphone to ensure they gate open and closed at the same time. This will change the IntelliMix to Custom mode.

6. Increase the Hold Time for the Mix output to the maximum setting of 1500 ms.

Tip: If unnatural gating occurs during sustained notes, disable the Noise Adaptive Threshold (NAT) and manually set a gate threshold.

Internet Calling

Dante-enabled mixers integrate software applications such as Skypetm, Lynctm, Voice. This enables multiple microphones to participate in a teleconferencing event.

1. Reference the Installation section to properly connect and setup microphones to the mixer back panel.

2. Open the IntelliMix tab of the GUI.

3. Select Dual Mixer operation.

4. In the GUI, route channels 1 - 8 to Mix A only (deselect routing to Mix B).

5. In the Inputs tab, set the Aux channel to Network input source.

6. Route the Aux channel to Mix B only.

7. Open Dante Virtual Soundcard and turn it on.

8. Open Dante Controller (DC) software.

9. In DC, route the SCM820 tx channel 'Mix A' to computer rx channel 1.

10. In DC, route computer tx channels 1 and 2 to SCM820 rx channels Aux L and R.

11. Connect Mix B analog output to a speaker or output device.

12. Open the computer's settings and select Dante as the input and output soundcard.

Trademarks: Trademarks are the property of their respective owners.

Logic

The logic functions of the SCM820 expand the mixer's range of installation and control options. These functions can be hardwired or configured in the GUI.

The following hardware logic functions are available for each channel:

Gate Out

Follows channel gating and goes to logic "low" (sinks current) when microphone is gated on. 500 mA of current sinking ability is provided.

Mute In

Applying logic "low" (from GATE OUT or a switch closure to logic ground) gates channel off (channel output is fully attenuated).

Override In

Applying logic "low" (from GATE OUT or a switch closure to logic ground) forces channel on. When both Mute and Override are activated, Mute takes precedence.

Logic Ground

Logic ground is distinct from the SCM820 audio ground. Make all logic ground connections to this pin, including power supply ground of external logic circuitry. To avoid switch clicks, do not connect logic ground to audio, chassis or rack grounds.

Suggested Logic Application

This section contains suggestions on the uses of the SCM820's logic capabilities. For additional suggestions and solutions to installation problems, contact Shure's Systems Support.

Cough Button

The talker can turn off his or her microphone during coughing or private conversations by installing an SPST pushbutton switch between the MUTE IN and Logic Ground pins for each channel to be modified. When a channel is muted, no audio is passed.

Set the mute control to post-IntelliMix setting ( > Mute Control) to ensure that unwanted sounds do not gate on other microphones.

Chairperson-Controlled Muting

The chairperson can, by activating a switch, silence all other microphones and be heard without interruption.

1. Set the desired channel to Chairperson Mute to manual (

IntelliMix Panel > Chairperson > Mute).

2. Connect the switch to the Override In logic connection for the chairperson's microphone.

An alternative to a switch is to set the Chairperson Mute to Auto. In this setting, when the chairperson's microphone activates, all other microphones mute automatically.

GUI > IntelliMix Panel

GUI >

Remote Channel-Open Indicators

Remote indicators can be used to indicate when a talker's microphone is on. Connect the LEDs and a 5-volt supply to the GATE OUT pin. To avoid switching clicks in the audio output, do not ground the power supply negative terminal in the audio system or rack ground.

Important: If a single cable is used for the microphone audio signal and the LED dc power, separate shielded pairs must be used. Failure to carry the DC power on a shielded pair may result in audible clicking due to capacitive coupling between the DC power lines and microphone lines.

Disabling the Gating Function (Always On)

Select Always On for the channel(s) that should remain open (

IntelliMix Panel > Always On.

Inhibiting Gating for Unwanted Sounds

The MaxBus operating principle ensures that the mixer will activate only one microphone per sound source. Muting a microphone channel prevents its audio from appearing at the mixer's output. However, the muted channel set to Post-IntelliMix still communicates with other mic channels via MaxBus. A sound source picked up by a muted microphone will not activate other microphones.

Sound sources that may cause unwanted microphone channel activation include:

• A noisy fax machine or printer

• A squeaky door

• An intercom system

• A teleconferencing loudspeaker

The SCM820 can prevent these and similar sounds from activating microphones by taking the following steps.

1. Place one microphone near the unwanted sound source. Connect that microphone's signal to a channel input.

2. Mute the channel.

3. Set the Mute Control to Post-IntelliMix (

4. Adjust that channel's gain control just to the level where other microphones in the system do not activate for the unwanted sound. If the channel gain is set too high, other system microphones will be difficult to activate for desired sounds. If set too low, unwanted sounds will continue to activate other microphones.

Loudspeaker Muting

Some applications require a loudspeaker to be placed near each talker to provide audio reinforcement, or to permit telephone conversation or conference monitoring. Each loudspeaker can cause feedback unless it is automatically switched off when the talker near it speaks. To provide this function, connect the GATE OUT terminal of each channel to a separate loudspeaker muting relay.

NOTE: A diode across each relay coil is required to suppress inductive voltage spikes which may damage the SCM820.

An alternative to creating a circuit is a Logic Controlled Relay, such as the Radio Design Labs (RDL) ST-LCR1.

“Filibuster” Mode

In normal operation, when several people talk, each microphone gates on so that no speech is missed. In “filibuster” action, a microphone that is gated on prevents other microphones from gating on. Once a microphone has gated on, other microphones cannot gate on until the talker has paused long enough for that microphone to gate off. Thus the person talking has the floor and cannot be interrupted.

Set the maximum number of open microphones to 1 (

Mix A/B > Max NOM

GUI > IntelliMix Tab > Mute Control).

GUI > IntelliMix Panel >

GUI >

Digital Feedback Reduction (DFR)

DFR uses Shure’s patented Adaptive Notch Filter algorithm to discriminate between feedback and non-feedback sounds. It automatically detects feedback and deploys narrow-band notch filters at the feedback frequencies. DFR filters are narrow enough to prevent any coloration of the audio program.

No sound system (the combination of microphones, mixing, signal processing, power amplifiers, loudspeakers and room acoustics) produces an absolutely flat response. When the level of a sound system is increased, the frequencies at which peaks occur will be the first to exceed the threshold of feedback. The DFR attenuates these frequencies, flattening the response of the sound system and enabling operation at a higher overall level.

DFR is available for the SCM820 on firmware versions 1.1.0 and higher. For a unit running an earlier firmware version, use the Shure Update Utility application to update the mixer to a new firmware. The application is available from www.shure.com/software.

Function

Use DFR as the initial processor on any channel that receives signal from a live microphone where feedback is problematic. When DFR detects feedback, it inserts a shallow, narrow filter into the audio path to reduce gain at the feedback frequency. This filter is called a notch filter, due to the narrow section of the frequency spectrum it affects. The notch automatically deepens if feedback continues on that frequency.

Basic DFR Setup

Digital Feedback Reducer will not enable you to increase system gain beyond the physical limits of the sound system. In most cases, you reach a point of diminishing returns after five to eight notch filters are set. This is because there are usually only a few dominant peaks in the response of the system. In most cases, you can expect a 6 dB to 9 dB improvement in gain-before-feedback by using the DFR. When you are ringing out the system and notice that many frequencies feedback simultaneously, you have reached the point of diminishing returns. If at this point the system still has insufficient gain before feedback, other changes must be made to the sound system, such as changing the placement of the microphones and/or loudspeakers.

There are two basic ways in which to set-up the DFR to reduce feedback; the Ring-Out Method and the Insurance Policy Method:

• Ring Out Method - With this method, you use the DFR as a preemptive measure against feedback for input channels that operate near the feedback point and need an extra margin of stability. Using this method, you raise the channel’s gain beyond its normal setting to deliberately make the system feed back. The DFR will then set the proper filters. Then, when you reduce the input gain to an appropriate level, the system is stable and usable.

• Insurance Policy Method - With this method, you use the DFR as added insurance against unexpected feedback in an otherwise stable system. Simply place the DFR processor in the signal path, without defining any settings. This method is used for systems which already have sufficient gain-before-feedback, but need protection from occasional feedback occurrences due to non-stationary microphones or user-adjustable gain controls.

To ring out the system:

1. Remove any active filters by clicking the Clear All button.

2. Place microphones at their intended locations.

3. Set the mixer to Manual to open all mics.

4. Slowly raise the gain of the sound system while talking or clapping into the microphones.

5. Assign the DFR to the channel that begins to feed back. If multiple microphones feed back in the same frequency, assign the DFR to the mix bus.

6. The DFR processor will deploy notch filters to attenuate the feedback frequencies.

7. Once the system has stopped feeding back, you can continue by further raising the level and repeating the process for additional frequencies. Typically you can raise the gain 3 dB to 9 dB above the level at which feedback first occurred.

8. Lock the deployed filters so they are fixed. The remaining Unlocked (Dynamic) filters will deploy as needed when the system is in use. Note: Depending on the setup of the sounds system, the main PA signal may be separate from the monitor mix signal. Each feedback path should include a DFR for the maximum gain before feedback.

Assigning DFR

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Two DFR blocks are assignable to any channel input or mix output. When using two or less microphones, assign the DFR to those channels to prevent feedback from routing to the mix bus. Additionally, if a microphone is designated for a chairperson or host, DFR should be applied to that channel to ensure that remains stable and does not feed back.

Apply DFR to a mix bus when using multiple non-stationary microphones or when trouble frequencies are feeding back simultaneously in multiple microphone channels.

Filter Types

By default, the DFR processor filters are unlocked to dynamically adjust as feedback frequencies are detected. However, you can specify how many of the total number of notch filters will remain fixed (locked). Use a greater number of locked (fixed) filters on input channels for stationary microphones. In this instance, the room acoustics define the dominant feedback frequencies, which do not change appreciably. Use a greater number of the dynamic (unlocked) filters on input channels for wireless or handheld microphones. In this situation, feedback frequencies change drastically as the microphone user wanders the room or sound stage.

Both fixed and dynamic filters will automatically deepen as additional feedback is detected.

• Locked (Fixed): Once set, the frequency of a fixed filter will not change until it has been cleared or a new frequency manually entered.

• Unlocked (Dynamic): Frequencies are automatically assigned by the DFR as feedback is detected. Once a filter is deployed, it remains at that frequency until all filters are used. At that time, the DFR redeploys each dynamic filter at the newly detected frequency, in the order of oldest dynamic filter to newest.

Filter Width

The DFR offers two width options for notch filters. By default, filters in the DFR are deployed as High Q filters. As a high Q filter gets deeper its Q increases up to 101 (1/70th of an octave). You can also set filters to deploy at Low Q. Low Q filters affect a slightly wider range of frequencies by maintaining a Q of 58 (1/40th of an octave) as they deepen. To change the setting for an existing filter, select the Q-Width drop-down menu in the filter row.

New Filter Q: This setting determines the Q width for new Unlocked (Dynamic) frequencies as deployed by DFR.

Navigation Bar

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GUI Description

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1) Tabs

The GUI is separated into six tabs that are used for different functions:

• Input: Setup and management of input channels 1-8 and Aux

• IntelliMix: Select Mix mode and load/save Customize IntelliMix settings

• DFR: Set up and monitor Shure Digital Feedback Reducer (DFR) for up to two channels

• Output: Assign the direct output and manage Mix A and Mix B outputs

• Link Group: Manage the Link Group status of devices

• Preferences: Configure network settings, set the device password, assign metering type, and engage hardware lockout.

2) Device List

Displays the name of the mixer as set in the Preferences tab. Click the drop-down bar and select a device to open its GUI in a new window or tab.

3) Identify

When clicked, this commands the mixer’s LEDs to flash for easy identification.

4) Log Off

When a password is set, this button logs off of the device and returns the user to the Log On page. This button does not appear when there is no password (default).

5) Shure Web Link

Links to the Shure website at www.shure.com.

6) Language

Sets the language of the GUI. This setting is saved to the computer’s cookies.

7) Help

Opens the Help file for the GUI.

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1) Channel Name

Channel names can be customized with up to 31 any characters in length except ‘=’,’.’ or ‘@’.

2) Source

Sets the audio input to one of two sources:

• Analog (default): Audio is from a microphone or line-level audio source connected to a channel input on the mixer back panel.

• Network: Audio is from the Dante digital audio network. Dante Controller software is required to properly route audio to the channel inputs.

3) Input Gain Level

Selects the analog input gain level for each channel.

• Mic (+46 dB): For less sensitive microphones such as dynamics.

• Mic (+26 dB): For loud talkers or sensitive microphones such as condensers.

• Line (+0dB): For line-level sources such as mixer inserts.

Note: Gain is disabled when the audio source is set to Network.

4) Phantom Power (+48V)

When selected, the button illuminates green to indicate 48 V phantom power is supplied to the microphone. Use this setting for

condenser microphones. Note: Disabled when Input Gain Level is set to Line (+0dB) or Network is selected for the audio source .

5) Low Cut Button

Ideal for attenuating low-frequency vibration

caused by table vibrations or air-conditioning

rumble. Adjust the frequency of the 12 dB/

octave filter from 25 - 320 Hz.

• Green= enabled

• Gray= disabled

6) High Shelf Button

For tempering sibilant speech or enhancing the sound of off-axis microphones. Use this to boost or cut the signal by 12 dB at 5 kHz.

• Green= enabled

• Gray= disabled

7) DFR Enable/Disable Button

When Digital Feedback Reducer (DFR) is assigned from the DFR tab, an enable/disable button appears in that channel strip.

• Green= enabled

• Gray= disabled

8) Channel On Indicators

The two indicators illuminate green when the channel is open to that mix bus (Mix A or Mix B). When set to Dual Mixer, the A and B indicators function separately for each mix.

9) Clip Indicator

Illuminates when the signal is clipping the input preamp. The light will stay lit as a warning for 2 seconds. Select a lower Input Gain Level to avoid clipping.

10) Input Meter

Displays signal level information. The meter is customizable in the Preferences tab to monitor the following options:

• Realtime monitoring of the input signal level (default) or IntelliMix Gain attenuation.

• Pre- or post-fader Input signal level.

• VU + Peak (default), Peak, or VU metering of input signal level_Ref86959235.

11) Channel Fader and Gain Value

Adjusts the channel volume from -110 dB to +18 dB.

12) Group (Fader and Mute)

Each channel can join a fader or mute group, which enable the adjustment of several channels at once. There is one Fader and one Mute group for each Link Group.

13) Mute Button

Mutes the audio for that channel. A muted channel still can still be soloed to the headphones for monitoring. Channel Mute Control can be set to one of two places from the IntelliMix tab:

• Pre-IntelliMix: Audio is muted before MaxBus or IntelliMix decisions.

• Post-IntelliMix: Audio is muted after contributing to IntelliMix and Maxbus decisions.

14) Solo Button

Solos the selected channel to the headphone jack for monitoring.

15) Aux Routing

Routes the aux channel to the selected mix output. The aux channel routes without automixing to the mix outputs.

16) Aux Link Mode

Defines the aux channel routing when the device is in a Link Group:

• Global (default): Aux audio appears at the outputs of all linked mixers.

• Local: Aux audio appears only at that mixer’s output.

17) Copy Channel

Copies the selected channel’s Input settings to the device or to the entire Link Group.

Intellimix Tab

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Mixer Settings

1) Mixer Type

The SCM820 can be set to operate as a single or dual mixer:

• Single Mixer: Channels are routed to a single mix bus that sends the same audio to both Mix A and B outputs. This allows the same program to be sent to different rooms or recording applications. The output gain, parametric equalizer and limiter can be set separately for each mix.

• Dual Mixer: Two separate buses provide independent automixes for each mix output. This allows two entirely different mixes to result from the same set of inputs or enables the SCM820 to function as two smaller independent mixers. This is useful when the mixer is being used for two applications. For example, set Mix A to Classic mode for sound reinforcement, and set Mix B to Smooth for a broadcast feed. As a dual mixer, each channel can route to Mix A, Mix B, both or neither mixes.

2) Mix Modes

The Mix Mode sets the IntelliMix configuration to determine the way the channels are mixed to the master outputs. When an adjustment is made to any IntelliMix preset, the mode automatically changes to Custom. See Mixer Modes section for configuration details of each preset. Press the mode button to highlight which channels are routed to that mix. The color of the box around a channel correlates to the IntelliMix settings of the mix output. To view the other mix’s settings, click on the mode for that mix.

Note: When set to Single Mixer operation, Mixes A and B are the same.

3) Save

Saves current Custom IntelliMix settings as a file to your computer.

4) Load

Uploads a saved Custom IntelliMix settings file.

Channel Strip

5) Channel Name

Displays the channel name as defined in the Inputs Tab.

6) Routing

Routes the channel to the Mix A or Mix B output. The routing options depend on the Mixer Type:

• Single Mixer Type: the channel can route to both or neither mixes.

• Dual Mixer Type: the channel can route to Mix A, Mix B, both, or neither mixes.

7) Gating Logic

When the mixer is set to Dual Mixer operation, this setting determines whether Mix A or Mix B controls the hardware functions (IntelliMix Direct Output), indicators (Channel Status LEDs) and channel Logic pins.

8) Always On

The Always On setting forces a channel to stay open continuously in the mix. Note: A channel that is set to Always On still contributes to and is affected by the IntelliMix. For example, NOMA still applies to Always On channels.

9) NAT (Noise Adaptive Threshold)

Select to engage the NAT, which continuously adjusts the gate threshold for opening a channel. NAT is a core IntelliMix operating principle.

10) Offset

Sets the difference in dBs between the noise floor (determined by NAT) and a signal level, above which will open a channel.

11) Threshold

When NAT is deactivated, this manually determines the noise level above which a channel will gate open.

12) Chairperson

Override: When selected, it allows this channel to gate open regardless of NOM setting (number of open microphones). Mute: When selected, all other channels mute when this channel gates open. There are two types of Chairperson Mute:

• Auto: Other channels automatically mute when the selected channel is gated open.

• Manual: A Logic-wired button connected to the Override In Logic pin controls the mute function applied to all other channels.

13) Gate Group

When any channel from the group is gated open, the rest of the group automatically gates open. There is one Gate Group for each Link Group. In Dual Mix mode, there is one gate group per Mix for each Link Group. This is disabled when the Gating Style is set to Relative.

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③

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⑤ ⑥ ⑦

⑧ ⑨

⑩ ⑪

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14) Mute Control

Determines the location of a channel mute in the mixer’s signal path.

• Pre-IntelliMix: the signal mutes prior to the Intellimix bus.

• Post-IntelliMix: the signal goes to the mix bus and is muted after it contributes to IntelliMix decisions (such as MaxBus and NOM).

Mix Outputs

15) Mix Name

Displays Mix Output name, set from the Mix Output tab.

16) Gating Style

Determines the way gain is applied to open channels.

• Full: Channels open at full gain, adjusted to the NOMA factor.

• Relative: Channels open at a gain level that varies with the input signal level—quieter signals receive less gain than loud signals.Note: Gate Group and Hold Time are disabled in this setting.

17) Gain Scaling

Determines how total system gain is managed. There are two types of Gain Scaling:

• Fixed: Off attenuation is a fixed amount. Total system gain varies with the number of open channels.

• Adaptive: Off attenuation is adjusted to maintain a uniform system gain comparable to that of a single open channel. Note: Off Attenuation, Last Mic Lock-On, and NOMA are disabled in this setting.

18) Off Attenuation

Sets the amount of attenuation applied to closed channels. This is disabled when the Gain Scaling is set to Adaptive.

⑮

⑯

⑰ ⑱ ⑲ ⑳

19) Hold Time

In Full gating style, this determines how long a channel remains open after the signal level drops below the gate threshold. This is disabled when the Gating Style is set to Relative.

20) NOMA (Number of Open Microphone Attenuation)

NOMA attenuates the system gain as additional channels open in a mix. This controls system levels and reduces feedback. The parameter setting applies per doubling of microphones. This is disabled when the Gain Scaling is set to Adaptive.

21) MAX NOM (Number of Open Microphones)

Limits the maximum number of microphones that can be open in a mix at the same time. When set to Max, there is no limit.

Tip: Set the MAX NOM to 1 for “Filibuster Mode” (one talker at a time).

22) LMLO (Last Mic Lock On)

Avoids ambient dropout by keeping at least one channel open at all times (the last opened channel).This is disabled when the Gain Scaling is set to Adaptive.

23) Copy Channel

Copies the selected channel’s IntelliMix settings to the device or to the entire Link Group.

Digital Feedback Reduction (DFR) Tab

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⑥ ⑦ ⑧ ⑨

⑤

⑬

③②

⑩

⑪

⑫

⑭

④

⑮

1) Enable/Disable Button

Click this button to enable or disable the DFR notch filtering. It automatically turns on when DFR is assigned to a channel. When disabled, the DFR filters are turned off.

• Green= enabled

• Gray= disabled

2) Channel Assignment

Assign the DFR block to an input channel or mix bus.

3) # of Filters

Adjust the maximum number of filters from 1 to 16 (default).

4) Response Graph

This curve is a graphical representation of the processor’s active notch filters (highlighted in yellow). The frequency of the currently selected filter is indicated by a red line.

5) Feedback Filters

Each filter row displays the filter type, frequency, depth and Q width. Between 1 and 16 filters are available for each DFR channel. When a row is selected, a red line appears on the response curve at that frequency.

6) Filter Type

This button designates the filter type so that its frequency either dynamically adjusts or remains fixed. In both types, DFR automatically adjusts the filter depth.

• Unlocked (Dynamic): the frequency is adjusted automatically

• Locked (Fixed): the frequency is fixed and will not change automatically

7) Frequency

This indicates the frequency of the selected filter. You can change the value by scrolling on the arrow buttons or by entering a specific value. The frequency range is from 25Hz to 20kHz. The value is blank (------) until the filter is deployed by the DFR or entered manually.

8) Depth

This indicates the gain reduction of the selected filter. The range of available gain values is between 0 db and -18 dB in 0.5 dB increments, with a default setting of 0 dB.

9) Q-Width

This indicates the bandwidth type of the selected filter. Select High Q (default) or Low Q from the drop-down menu.

• High Q: 1/70th octave (Q=101)

• Low Q: 1/40 octave (Q=58)

10) New Filter Q

This selection designates the width of each new filter as it is deployed by DFR.

11) Freeze

Click this button to prevent both the deployment of new filters and the automatic adjustment of existing filters. Freeze the DFR to keep it from deploying filters for program material that contains sounds that closely resemble feedback (such as guitar effects, synthesized tones, flute or pipe organ). The button appears lighted in blue when the freeze feature is enabled. During this time, filters remain manually adjustable.

12) Auto Clear

This feature automatically clears Unlocked (Dynamic) filters and removes changes to the depth of Locked (Fixed) filters. Locked filter depth reverts to the level set when Auto Clear was enabled.

When enabled, Auto Clear occurs during each power cycle. Additionally, a repeating timeout can be defined to ensure that DFR filters clear regularly.

The Auto Clear timeout applies to each filter independently, and starts the moment it is deployed. The timer will restart after any change to a filter’s frequency, depth, or Q. The timer has a range of 1 minute to 100 hours.

13) Clear Filter Buttons

• Selected: Clears settings for the selected filter(s).

• Unlocked: Clears settings for all Unlocked (Dynamic) filters.

• Clear All: Clears all settings in the DFR block and reverts all filters back to Unlocked (Dynamic).

14) Load/Save

All DFR parameters can be saved as a file to a

computer and loaded to quickly recall settings. Note: DFR settings are included with SCM820 system settings that are saved from the Preferences tab.

15) Channel Fader and Gain Value

Channel gain is adjustable from to the DFR tab

for monitoring the notch filters when ringing out a

sound system. Any adjustment made to the gain

here is mirrored on the assigned channel strip.

Output Tab

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③ ④

⑤

Direct Output

1) Channel Name

Displays the channel name as defined in the Inputs Tab.

2) Direct Output Selection

The direct output can be routed from one of five stages in the signal path:

• Pre-EQ (default): After the Input Gain

• Post-EQ: After the EQ blocks

• Post-Fader: After the channel fader

• IntelliMix: After the IntelliMix gating decision

• IntelliMix NOMA: After IntelliMix gating and after NOMA is applied

3) Direct Output On Indicator

The two indicators the gating states that are used for the direct outputs.

4) Clip Indicator

Illuminates when the input signal overloads the digital-to-analog converter. The light will stay lit as a warning for 2 seconds.

5) Direct Output Meter

Displays the channel’s direct output signal level.

Master

6) Mix Output Name

Mix names can be customized with up to 31 any characters in length except ‘=’,’.’ or ‘@’.

7) PEQ (Parametric Equalizer)

Each mix output has an 8-band parametric EQ that is engaged by the check box. Press the button to open the PEQ window. 8 bands are editable from the PEQ, including a low and high shelf. Select the box to engage the band and edit the following parameter:

• Frequency: Sets the center frequency for each band from 25 - 20,0000 Hz.

• Width and Q: This setting adjusts the bandwidth of the EQ adjustment from very narrow (1/70 octave or 100.99Q) to very wide (4 octaves or

0.27 Q).

• Gain: Sets boost or cut of the EQ setting from -18 to +18 dB.

8) DFR Enable/Disable Button

When DFR is assigned from the DFR tab, an enable/disable button appears in that channel strip.

• Green= enabled

• Gray= disabled

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⑧ ⑨ ⑩

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9) Lim (Limiter) Indicator

Illuminates to indicate that the signal has exceed the limiter threshold, engaging the limiter.

10) Clip Indicator

Illuminates when the signal has clipped the outputs, holding for two seconds.

11) Output Meter

Displays the output signal level.

12) Fader and Gain Value Box

Adjusts the mix volume from -110 dB to +18 dB.

13) Limiter Activation Box

Activates the limiter when selected.

14) Limiter Threshold

Set the limiter threshold from -2 to -50 dBFS for the mix outputs. The level is indicated by the blue triangle next to the meter.

15) Output Level

Selects the output level of the mix outputs. Set according to the input of the connecting equipment. There are three settings: Line (-0dB) (default), Aux (-20dB), Mic (-46dB).

16) Group (Fader or Mute)

Adds the mix to the Fader or Mute group. Groups allow the adjustment of several mixes outputs at once. There is one Fader and one Mute group per Link Group.

17) Mute

Mutes the audio output for that mix.

18) Link Mode

Defines the audio content for the mix outputs when the device is in a Link Group.

• Global (default): The mixer’s outputs contain audio from the entire Link Group.

• Local: The mixer’s outputs contains only the audio from that mixer’s inputs.

Link Group Tab

SCM820 SCM820-1 SCM820-2 SCM820-3 SCM820-4 SCM820-5 SCM820-6

Auto Group 1

SCM820 SCM820-1

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1) All Devices List

Master list of all available SCM820 Dante units on the network.

• Drag and drop the devices to a Link Group or the Stand Alone Window.

• Select a device to view its location in either the Linked or Stand Alone device windows.

2) Linked Device Groups

Displays each Link Group along with the number of devices that comprise it. There is one Auto group that includes up to 12 mixers that have Auto Link enabled. When a device is placed in a group, it will automatically configure the unit to the group’s settings.

3) Stand Alone Devices List

Displays all mixers that function independently of a link group.

SCM820-3

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SCM820-4 SCM820-5 SCM820-6

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4) New Group Button

Creates a new Link Group to the list.

5) Delete Group Button

Deletes an empty group from the Linked Device Group window. This is inactive if there are any mixers in the group.

6) Link Status Indicator

• Green: Link group is ready.

• Flashing Green: Link group is configuring.

Preferences Tab

Device

1) Device Name

Device names can be customized with up to 31 any characters in length except ‘=’,’.’ or ‘@’.

2) Push to Dante Name

Overwrites the device and channel names in Dante Controller (DC) software. Note: Use with caution, as this could break the routing configuration in DC and cause audio interruptions.

3) Dante Device Name

The name of the device in Dante Controller.

4) Device Serial Number

Unique identification of the mixer. Use the number to register the unit at shure.com.

5) Firmware

Displays the firmware version of the device.

6) Input Meter Mode

Determines if the channel meters are before (Pre-Fader) or after (PostFader) the channel’s volume knob/fader.

7) Meter Type

Selects the information displayed on the channel input meters on the Input tab:

• VU+Peak (default): Peaks display as a hash bar; average signal levels are displayed as a solid bar.

• VU: Displays average audio signals.

• Peak: Displays peak audio signals with a peak hold displayed as a hash bar.

8) Headphone Mode

Routes audio to the headphone output from one of two stages in the signal path:

• Pre Fader (default): Post EQ and pre-volume knob/fader.

• Post-Fader: Post EQ and post-volume knob/fader. This is post-limiter for the mix adjustments.

9) IntelliMix Metering

Changes the GUI Input meters to display IntelliMix attenuation applied in realtime, as displayed with an orange meter. Channels that gate open will display more gain than channels that are closed (attenuated) in the mix.

10) Disable Software Meters

When selected, this turns off all metering in the GUI. Disabling meters helps to reduce network traffic. (This does not affect the hardware metering.)

Hardware Lockout

11) Hardware Lockout

Disables hardware controls on the mixer. This can lockout the entire mixer or specific functions: all back panel, master controls, channel controls, and the lockout button on the mixer back panel.

12) Copy to Link Group

Copies Hardware Lockout settings to the entire Link group

Network

13) Configuration

Determines the routing of Shure Control and Dante Audio & Controller data from the two network ports. See Port Configuration for details. Follow these steps to change the Configuration mode:

1. Disconnect the mixer from the network.

2. Connect the Primary port of the mixer directly to a computer.

3. Go to the Network panel in the GUI: Preferences > Network

4. Select the Configuration mode. The mixer will reboot once the selection is confirmed.

5. Repeat for each mixer.

Warning: Do not reconnect mixers to the network until the network settings are the same for all units.

14) Interface

Click to view audio and control data routing for each interface.

15) IP Settings

Displays the network settings for each port:

• Auto: For automatic DHCP or Link-Local IP addresses

• Manual: For Static IP addresses

16) Network Speed

Indicates the speed of the network.

17) Dante Latency

See Latency section for more details.

Software

18) Default Language Selection

Determines the language of the GUI when it opens on a computer with no prior cookies.

19) Password

By default, no password is required to log on to the GUI. To add an Administrator password for the GUI, follow these steps:

1. Enter password into the New Password field

2. Repeat for the Password (Confirm)

3. Select Apply to set the password. Once a password is set, any user can log on as a Guest to view the GUI without changing settings. To clear a password and allow anyone full editing rights:

1. Log on to the GUI

2. Enter the current password into the Old Password text field.

3. Press the Clear button.

20) Load Settings Button

Uploads a file of saved settings to the device. This reconfigures the IntelliMix settings of all units in a Link Group.

21) Save Settings Button

Select the Save Settings button to save the mixer settings (configuration of the Input, IntelliMix, Output and Preferences tabs). Note: Link Group and IP settings are not saved.

22) No Lights Mode

Turns off all visual indicators on the mixer (except the Power LED on the front panel).

23) Reset

Returns the mixer to default factory settings (clearing the password and device and channel names). The mixer will reboot in Standalone mode.

24) Register This Product

Links to Shure website for product registration.

25) Event Log Link

Links to the device’s Event Log, which opens in a new browser tab or window. The log displays a list of all informational system events.

Log On Page

This page is only displayed after a password has been set from the Preferences tab, establishing an Administrator log in. When there is no Administrator, there are no restrictions changing a device’s settings.

Note: No more than five Administrators or Guests should be logged on to a device’s GUI at the same time. Opening more instances may degrade system performance.

1) User

When a password is set, there are two levels of access for the GUI:

• Admin: Full editing rights.

• Guest: User can only monitor (cannot change settings).

2) Password

Required for Admin access. The password can be set or cleared on the Preferences tab.

3) Keep Me Logged On

When selected, this allows the user to bypass the Log On page when reopening the GUI.

4) Language

Sets the language of the GUI. This setting is saved to the computer’s cookies.

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Event Log

The event log provides a detailed account of mixer activity from the moment the mixer is powered on. The log collects and time-stamps up to 1,000 activity entries for the mixer. The Event Log is a reference tool for troubleshooting when calling Shure Systems Support or Service Department.

The log categorizes entries into Events, Warnings and Errors:

• Events: An action has been successfully completed.

• Warnings: An action can not be completed, though overall mixer functionally is stable.

• Errors: Catastrophic problem has occurred that inhibits the mixer’s functionality. This corresponds to the 8-bit error codes that flash on the front-panel LEDs.

Viewing the Event Log

1. Open the Preferences tab of the GUI.

2. Select the Event Logs link from the Preferences panel. The log is located with the device’s DNS name: <device URL>/logs.

Audio

Problem Indicator Solution

Distorted audio

No Audio/Faint Audio

Network

Problem Indicator Solution

Can't Connect to the GUI

GUI is taking a long time to load

GUI is slow

Troubleshooting

Channel Status LED = Flashing Red • Set Analog Input to a lower level Mix Output meter = Clipping • Turn down master gain

Channel LEDs in Channel Meter mode (front panel) = Off

Mix Output meters = Off

Device not appearing in Shure Web Device Discovery application

Device appears in Shure Discovery application, but web browser cannot connect to the device

Browser opens but the GUI is slow to load

Indicators are moving slowly or not displaying in real time.

• Check cables

• Enable Phantom power for condenser microphones

• Check Input Gain Level

• Ensure mix is unmuted

• Turn up Master volume knob

• Check channel routing from IntelliMix tab of the GUI

• Check Link Group and Network LEDs (see Link Groups).

• Ensure the mixer is powered

• Properly connect the Primary port to the computer's network

• Turn off other network interfaces not used to connect to the mixer (including WiFi)

• Check that DHCP server is functioning (if applicable)

• Ensure Bonjour is running on the PC

• Download latest version of Adobe Flash

• Ensure PC and mixer are on the same subnet

• Set the computer gateway to 0.0.0.0

• Set the router to not send default gateway as a part of DHCP

• Manually set the computer to a static IP address on the same network as the mixer

• Ensure that five or less windows are open to the same GUI

• Disable software meters from GUI Preferences tab

• See Network section for properly setting up the network

Network Audio and Link Groups

Problem Indicator Solution

Green • Check channel and mix gain

Network audio is missing or distorted

No audio output for mixers in a Link Group

Network Audio LED

AutoMix Link LED

Flashing Green

Red • Check master clock in DC Off • Use DC to properly route audio channels

Green

Flashing Green • Wait until the group has reconfigured

Off

• Ensure the mixer has a stable network connection

• Use Dante Controller software (DC) to verify channel subscriptions

• Turn up master gain control

• Check Global/Local setting for the Mix Outputs

• Ensure the mixer has been assigned to a Link Group from the Link Group tab of the GUI

Hardware

Problem Indicator Solution

Can't make adjustments to the mixer

No LEDs are turning on Power button = On • Uncheck No Lights Mode from the GUI Preferences tab

For additional Troubleshooting assistance or further information on complex installations, contact Shure to speak with a support representative. In the Americas region, call Systems Support group at 847-600-8541. For users in other locations, go to www.shure.com to find support contact for your region.

For digital audio networking help, advanced networking guidelines and Dante software troubleshooting, visit Audinate's website at www.audinate.com.

lockout LED = Red

• Press and hold lockout button on the back panel for 5 seconds to disable the lockout.

• If the mixer is still locked, open the GUI and uncheck the Hardware Lockout button in the Preferences tab.

Event Log

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The event log provides a detailed account of mixer activity from the moment the mixer is powered on. The log collects up to 1,000 activity entries for the mixer, and time-stamps them relative to the last power cycle.

To troubleshoot audio or hardware problems, press Save Log to export to a computer file. Refer to the log file for details when troubleshooting or consulting with Shure Systems Support.

The log categorizes entries into Events, Warnings and Errors:

• Events: An action has been successfully completed.

• Warnings: An action can not be completed, though overall mixer functionally is stable.

• Errors: A problem has occurred that could inhibit the mixer's functionality. This corresponds to error messages that flash on the front-panel LEDs.

Viewing the Event Log

To view the event log:

1. Open the Preferences tab of the GUI.

2. Select the Event Log hyperlink on the bottom left of the Preferences panel. The log is located with the device's DNS name: <device URL>/ eventlog/.

Front-Panel Error Messages

An error message is generated on the Channel LED rings when operating or environmental conditions occur that could potentially harm the mixer. These types of messages indicate the mixer has experienced a critical failure. Before calling Shure System Support, try these basic debugging tools:

1. Open the Event Log and press Save Log to export the file to your computer.

2. Power cycle the device by switching the power button off and on again.

3. Reset the device to factory default settings. This will clear all configurations made to the mixer.

4. Download the latest firmware from Shure.com and load it to the device.

5. If the error message persists, contact a Shure support representative for your region.

Note: To temporarily clear an error message until troubleshooting can be conducted, simultaneously press the Channel 1 knob and Front Panel Mode selector.

Device Overheating Message

One example of an error message is the Device Overheating message. This appears on the channel LEDs in the following pattern as illustrated in the drawing. For this message, it is recommended that the device be immediately cooled down to avoid permanent damage. If the problem persists, follow the steps listed above to try to clear the message.

Device Overheating Error Code

Specifications

Audio Frequency Response

20 Hz to 20 kHz (±1 dB)

Dynamic Range

20 Hz to 20 kHz, A-weighted, typical

Analog-to-Analog 110 dB

Analog-to-Dante, Dante-to-Analog 113 dB

Output Noise (mix output / direct output)

20 Hz to 20 kHz, A-Weighted, one channel open

Output Pad

Line (-0dB) Aux (-20dB) Mic (-46dB)

−90 dBV −110 dBV −135 dBV

Equivalent Input Noise

20 Hz to 20 kHz, A-Weighted, input terminated with 150Ω, digital gain at +18 dB

Input Gain Setting

Line (+0dB) Mic (+26dB) Mic (+46dB)

−93 dBV −118 dBV −130 dBV

THD+N

1 kHz, +4 dBu out, mix output (MASTER) at +0 dB

<0.05%

Common Mode Rejection Ratio

150Ω balanced source, at 1kHz

>70 dB

Polarity

Non-inverting, any input to any output

Dimensions

44 mm x 483 mm x 289 mm (1.7 in. x 19.0 in. x 11.4 in.), H x W x D

Weight

5.5 kg (12.0 lbs)

Housing

Steel; Extruded aluminum

Power Requirements

100 to 240 V AC, 50-60 Hz, 1 A

Operating Temperature Range

−18°C (0°F) to 63°C (145°F)

Storage Temperature Range

−29°C (-20°F) to 74°C (165°F)

Analog Connections

Channel Input

Configuration Impedance

Active Balanced 5 kΩ +20 dBV −6 dBV −26 dBV

Line (+0dB) Mic (+26dB) Mic (+46dB)

Phantom Power

48 V DC, selectable per channel, 14 mA max.

Mic level settings only. Phantom power automatically switched off in LINE position.

Aux Input

Configuration Impedance Clipping Level

stereo, unbalanced 10 kΩ +10 dBV

Mix Output

Configuration Impedance

Active Balanced 350 Ω +20 dBV 0 dBV −26 dBV

Line (-0dB) Aux (-20dB) Mic (-46dB)

Direct Output

Configuration Impedance Max Output Level

Impedance Balanced 150 Ω +20 dBV

Headphone Output

6.35 mm (1/4") TRS, 100 mW, 350 Ω, dual mono (will drive stereo phones)

Clipping Level

Max Output Level

Digital Signal Processing

AD/DA Converter

24-bit, 48 kHz, 113 dB dynamic range typical

Internal Processing

32-bit

Latency

From channel input to mix output, Estimated Nominal, ±0.1 ms

Single Device ( ms) In a Link Group ( ms)

Analog to Analog 0.51 0.76 + 4T

Analog to Dante 0.29 0.54 + 4T Dante to Analog 0.28 + T

Dante to Dante 0.06 + T

TN = Network latency in milliseconds, as set in the device preferences page or Dante Controller. Note: Dante network latency is typically associated with the receiving device.

0.53 + 5T

0.31 + 5T

Channel Input Processing

Gain Adjustment Range −110 dB to +18 dB

Low Cut

High Shelf

Corner: 25 Hz to 320 Hz Slope: 12dB/octave

Corner: 5 kHz Slope: 12dB/octave

Gain: −18 dB to +18 dB

Mix Output Processing

Gain Adjustment Range −110 dB to +18 dB

Low Shelf

High Shelf

6-Band PEQ

Limiter

Corner: 25 Hz to 20 kHz Slope: 12dB/octave

Gain: −18 dB to +18 dB

Corner: 25 Hz to 20 kHz Slope: 12dB/octave

Gain: −18 dB to +18 dB

25 Hz to 20 kHz, ±18 dB Bandwidth: 1/70 to 4 octaves

Ratio: 10:1

Threshold: −50dBFS to −2dBFS

Attack: 0.1 ms Decay: 100 ms

Digital Feedback Reducer (DFR) Processing

Number of DFR Blocks 2

Number of Notch Filters 1 to 16 (default)

Notch Filter Bandwidth

Notch Filter Depth 0 db to −18 dB in 0.5 dB increments

High Q: 1/70th octave (Q=101) Low Q: 1/40th octave (Q=58)

Networking

Network Interface

SCM820 Single Port, 10/100 Mbps Ethernet

SCM820-DAN Dual Port, Gigabit Ethernet, Dante digital audio

Cable Requirements

Cat 5e or higher, shielded, 100 m maximum

Network Addressing Capability

DHCP, link-local, static

IP Ports and Protocols

Shure Control

Port TCP/UDP Protocol Description Factory Default

21 tcp FTP Required for firmware updates (otherwise closed) Closed 22 tcp SSH Not supported Closed 23 tcp Telnet Standard console interface Closed 68 udp DHCP Dynamic Host Configuration Protocol Open 80* tcp HTTP Required to launch embedded web server Open 427 tcp/udp SLP Required for inter-device communication Open 443 tcp HTTPS Not supported Closed 161 tcp SNMP Not supported Closed 162 tcp SNMP Not supported Closed 843* tcp Flash Required for web GUI Open 2202 tcp ASCII Required for 3rd party control strings Open 5353 udp mDNS Required for device discovery Open 5568 udp SDT Required for inter-device communication Open 8023 tcp Telnet Debug console interface Password 8180* tcp Flash Required for web GUI Open 8181* tcp Flash Required for web GUI Open 8427 udp Multcast SLP Required for inter-device communication Open 64000 tcp Telnet Required for Shure firmware update Open

Dante Audio & Controller

Port TCP/UDP Protocol Description

162 udp SNMP Used by Dante [319-320]* udp PTP Dante clocking 4321, 14336-14600 udp Dante Dante audio [4440, 4444, 4455]* udp Dante Dante audio routing 5353 udp mDNS Used by Dante [8700-8706, 8800]* udp Dante Dante Control and Monitoring 8751 udp Dante Dante Controller 16000-65536 udp Dante Used by Dante

*These ports must be open on the PC or control system to access the device through a firewall

+48V

Connector Diagrams

Fixed

Gain

Impedance Balanced Output

Out-Z

Fixed

Gain

Cross-Coupled Output

Fixed

Gain

Out-Z

OUTPUT PAD

-20dB -46dB

Pinouts are from the perspective of looking at the back of the unit

INTELLIMIX

CHANNEL

AUX IN

MIX OUTPUTS

MIX A

MIX B

INPUTS 1-8

L +R SUM

DIRECT OUTPUTS 1-8

line

manual

+0dB mic

smooth

+30dB mic

classic

+46dB

extreme custom

phm 48 VDC

dual mixer

auto link

C C : B B : D

:A A

secondary

primary

D : E0: 0 0

reset

lockout

Channel Inputs and Direct Outputs

1 2 3 4 5 6 7 8

1425

Direct

Outputs

-18 dBFS = +4 dBu

Mix

Outputs

-18 dBFS = +4 dBu

Ground

Positive

Negative

Mic Input

+4 dBu = -18 dBFS

Aux Input

+4 dBu = -18 dBFS

OUT

AUX IN

mix a

mix b

Inputs

gate mute ovrd gnd

6.81k

Input Trim

Fixed

Gain

Fixed

Gain

Mic-

Pre

direct out

vrd

gnd

ovrdgnd

gate

mute

direct out

t a

ovrd

gnd

direct out

gnd

direct out

Direct and

= =

Mix Outputs

Out

INTELLIMIX

ate

manual

mute

ovrdgnd

gnd

smooth classic

extreme

custom

dual mixer

direct out

Aux Input

Aux

CHANNEL

line +0dB mic +30dB mic +46dB

phm 48 VDC auto link

C B:C

: A A

: D D E: :0

reset

lockout

L R

Mix Outputs

Aux Input

From SCM820

IntelliMix Processing

+5 V

10K

GATE

OUT

LOGIC

GROUND

MUTE IN

OVERRIDE

+5 V

100K

To SCM820 IntelliMix Processing

Europe, Middle East, Africa:

Shure Europe GmbH Jakob-Dieffenbacher-Str. 12, 75031 Eppingen, Germany

Phone: 49-7262-92490 Fax: 49-7262-9249114 Email: info@shure.de

PT. GOSHEN SWARA INDONESIA

Kompleks Harco Mangga Dua Blok L No. 35 Jakarta Pusat

I.16.GSI31.00501.0211

Shure SCM820, IntelliMix SMC820 Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual