M
4
-Channel Mixer
通道
四
User Manual
使用說明書
5
混音器
0
目錄 /
中文
Contents
重要安全指示
產品主要特色
部件名稱與功能
前面板
後背板
連接方式
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規格
ENGLSH
IMPORTANT SAFETY INSTRUCTIONS
MAIN FEATURES
PART NAMES AND FUNCTIONS
FRONT PANEL
REAR PANEL
CONNECTIONS
SPECIFICATION
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重要安全指示
1. 閱讀說明書 - 操作本產品前應先閱讀所有安全性及操作說明。
2. 保留說明書 - 安全性及操作說明應妥善保存供未來參考用。
3. 留心警告 - 所有在本產品及操作說明上的警告都要遵守。
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4. 參照說明書 - 需參照所有操作及使用說明。
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5. 水和濕氣 - 在操作本產品時絕對不要靠近水-例如靠近浴缸、臉盆、洗碗槽、洗衣盆、游泳池、及在潮濕
地下室等等。禁止將装有异体的容器，例如花瓶，酒瓶等至於本產品上。
6. 移動平台及固定檯面 - 本產品只能使用在製造商所建議的移動平台及固定檯面。本產品與移動平
台的組合在移動時應特別注意。突然地停止，過大的外力及不平衡的表面，都會造成本產品在移
動平台上翻覆。
7. 牆壁或天花板架置 - 本產品應只參照製造商所建議的方式來架置在牆壁或天花板上。
8. 高溫 - 本產品應遠離熱氣來源，例如散熱器、暖器、火爐或者其他會產生高溫的用品(包含擴大機)。
9. 電源 - 本產品只能照電壓標籤所示來操作。如果你不確定你住家的電源的種類，請諮詢你的產品賣家或當
地電力公司。若本產品需要用電池或其他電源，請參照操作說明書。
10. 接地與電極 - 本產品可能供給極化交流電插頭。插頭只有一個方向插入插座。這是一個安全裝置，如果沒
辦法完全插入插座，請試著把插頭反方向。如果插頭仍無法插入插座，請連絡電工來更換插座，請勿毀
損安全性為考量的插頭。
11. 電源線的保護 - 電源供應線應該妥善規劃佈線的路徑，避免被其他物件所纏繞。應特別注意所使用的插座
是否與電源供應線的插頭吻合，這插座要靠近本產品的使用地點。
12. 清潔 - 本產品須依照製造商所建議的方式做清潔。清潔本產品應使用柔軟的乾布清潔。
13. 交流電供電零件 - 維修完成後在交還產品給使用者前，應使用電阻測量表測量交流電插頭及所有暴露在外
的金屬零件，電阻值應大於100k歐姆。
14. 長時間未使用 - 本產品在長時間未使用的狀況下，應將插頭拔除。
15. 物體及液體進入 - 小心不要讓物體掉入及液體流進本產品裡。
16. 損壞需求服務 - 當A.電源線或插頭已經毀損；或B.異物或液體掉進本產品；或C.本產品暴露在雨中；或
D.操作或功能不正常；或E.本產品被摔落或內部損壞時，應送回合格的服務人員處進行維修。
17. 售後服務 - 除了操作說明書所提到的正常操作外，使用者不應進行其他不當操作或試圖自行維修。當本產
品有問題時應請教合格的維修服務人員或送回合格的維修站進行維修服務。
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重要安全指示
18. 保持本產品在空氣流通的環境中 - 本產品上的散熱孔提供流通的空氣，以避免本產品在操作時產生過熱的
現象。這些為保持本產品空氣流通的散熱孔嚴禁被阻隔或被其他物品覆蓋。特別是較柔軟的表面，例如
床，沙發及地毯等等。本產品不應被安裝在內建的空間內，例如書櫥及架子，除非能夠依製造產商所規範
的空氣流通指示建構。
19. 連接安裝 - 請勿安裝非本產品製造商所建議的連接器材，以避免本產品遭受損害。
20. 配件 - 請勿將本產品放置在不穩定的移動推車，三角架，支撐架或桌子上。本產品可能會掉落因而使小孩
或是成人受傷，並且本產品會受到嚴重的損害。只能使用製造商所建議的移動推車，三角架，支撐架或桌
子，或是與本產品一起銷售的配件。必須依製造商指示安裝本產品，並且安裝的配件必須使用製造商所建
議的。
21. 閃電 - 為保護本產品在風雨期間不受到閃電的影響及侵害，當本產品長時間不使用時將插頭拔除，並拆除
天線。這將保護本產品免於受到閃電及電源突然增加的損害。
22. 替換零件 - 當需要替換零件時，請確保維修技術人員使用製造商所指定的零件或是與原零件具有相同特性
的替代品。未經授權的替代零件會導致過熱著火，電磁衝擊或其他嚴重的損害。
23. 安全性檢查 - 本產品在進行維修或任何服務時，請要求維修服務人員進行安全性檢查，以確保本產品在正
確地操作狀況下。
警 告
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嚴禁本產品暴露在下雨及潮濕的環境之中，以降低起火及觸電的危險。本產品避免暴露在會滴水及會濺到
水的環境中。裝有液體的容器絕對禁止放在本產品上，例如酒瓶，花瓶等等。
注意:嚴禁打開機蓋以降低觸電的風險。維修及更換零件請諮詢維修中心
合格的維修工程師。
三角形中有個箭頭的閃電標誌是為了警告在產品內部因未絕緣而可能產生的高壓電，這高壓電會
造成觸電的危險。
三角形中有個驚嘆號是為了提醒使用者重要的操作及維護指示。
注 意
為了杜絕觸電的危險，請勿使用不合規格的插座。應使用插頭能夠完全插入插座的插孔。
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產品主要特色
M50 是一款專業19吋4U機架式4通道混音器，M50的獨特設計專為活動DJ及舞台音響系統所設計，提供各式的演
藝場所及活動場合在音樂混音需求的最佳解決方案。支援多種連接方式，有4組Line in與4組 Aux/Phono的輸入，3
組麥克風輸入。 輸出端有平衡式XRL (可微調)，非平衡式RCA，錄音輸出(RCA)，BOOTH輸出，更特別設計超重
低音SUB WOOFER的輸出。一組可調整的BOOTH輸出，除可用來監聽外，更可當做另一主要輸出，大幅增加音
中
響系統的擴充性，可延伸控制活動現場不同區塊的音量調整。
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每通道均有三段等化器與高質量推子
每個通道均有增益控制，三波段的的等化器，可針對高頻，中頻與低頻，分別調整。並且使用60mm高質量的通道
推子，每個通道推子均可獨立拆換。
三組麥克風輸入
擁有多達三組麥克風的輸入，其中兩組麥克風的插口，設計置於前面版，以方便麥克風的連接使用，麥克風插口
可是適用XRL及6.3mm，每組麥克風均有獨立的音量調整與三段均衡控制。
麥克風人聲遮蓋(TALKOVER)功能
人聲遮蓋功能可以在DJ使用麥克風的時候，自動將音樂（通道1~4）音量降低。DJ不需要再調整每個通道的音
量，讓表演與活動進行得更順暢。
獨立的電平指示
每一通道都有獨立的電平指示，由10顆的LED燈所組成，以便於調整每個通道音量的大小與主要輸出音量一致，
讓混音的過程中更為平順。
高品質的 VCA 交叉推子
VCA(Voltage Controlled Amplifier) 控制的交叉推子，大幅的減少因聲音訊號傳導所產生的噪音，提升整個聲音的
品質，通常只用於高端的混音器上。VOXOA瞭解DJ對品質的需求，特別將VCA交叉推子放入標準規格，提供DJ最
高品質的使用經驗。
超重低音(Sub woofer)控制
獨特的Sub woofer控制設計，可自行調整設定低音的頻帶，讓DJ可隨著派對氣氛增加或減少 Cutoff Freq.之下的低
音音量。特別適用於主動式的低音砲喇叭，或是可用來傳遞訊號給舞台燈光，由低音訊號來控制燈光的變化。
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產品主要特色
推子啟動(FADER START)功能
推子啟動的功能可以大幅提升DJ在接歌上的準確性與效率，當M50與相容的CD播放機相連接時，就可輕鬆使用推
子啟動的功能。M50的推子啟動可相容VOXOA的P70、P30、P60等CD播放機。
功能特色
‧ 19英吋 4U機架式四通道混音器
‧ 輸入: Line x4 (RCA), Aux x4 (RCA), Phono x4 (RCA), 麥克風 x3 (XLR/1/4 Inch Combo x 2, 6.3mm x1)
‧ 輸出: XLR Balanced x1, Unblanced (RCA) x1, Record (RCA) x1, Booth(6.3mm) x1, 低音砲(6.3mm) x1, 推子
啟動控制 x2 (3.5mm)
‧ 每個通道都有三波段等化器
‧ 所有通道均可指定到交叉推子
‧ 每個通道均有獨立的電平指示
‧ 45 mm VCA可拆換的交叉推子
‧ 交叉推子具有推子啟動的功能
‧ 推子啟動可相容於VOXOA的CD/MP3播放器
‧ 可將監聽耳機的Cue劃分開
‧ 主要輸出可以切換立體聲或是單聲道
‧ 重低音單獨輸出並可調整控制輸出頻率
‧ 可控制音量的Booth 輸出端子
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部件名稱與功能
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前面板
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1. 麥克風 1 & 2 電平控制
此旋鈕控制調整麥克風1&2的電平。
2. 麥克風音頻等化控制
此組旋鈕分別控制麥克風 1 及麥克風 2 的頻率響應，控制範圍由-12dB到+12dB。
高音 - 此旋鈕用來調整麥克風輸出高音頻的部分，可控制從-12dB到+12dB(在10KHz下)，旋鈕調整至中間的位
置，在高音頻的部分是平坦的。
中音 - 此旋鈕用來調整麥克風輸出中音頻的部分，可控制從-12dB到+12dB(在1KHz下)，旋鈕調整至中間的位
置，在中音頻的部分是平坦的。
低音 - 此旋鈕用來調整麥克風輸出低音頻的部分，可控制從-12dB到+12dB(在100Hz下)，旋鈕調整至中間的位
置，在低音頻的部分是平坦的。
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部件名稱與功能
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3. 麥克風 開啟/關閉/人聲遮蓋 切換開關
設定控制麥克風的開啟與關閉，當開關位置置於人聲遮蓋(TALKOVER)的位置時，麥克風 1 及麥克風 2 均會啟
動，原本音樂的音量會自動降低到14dB左右。
4. 啟動監聽(Cue) 按鍵
按下所有或其中一個Cue按鍵，會將音樂來源分別分配至所指定的音軌再經由耳機監聽。按下多重Cue按鍵，
可由所選擇的音源在監聽耳機中造成混音的效果。
5. 交叉推子(Crossfader)分配開關
切換開關到對應的位置，可以選擇音軌音源分配到交叉推子的左(A)或是右(B)。當開關切換在中間的位置
“THRU”表示音軌音源不受交叉推子的控制。
6. 推子啟動按鍵 (FADER START BUTTON
此按鍵用來啟動或關閉推子起動的功能。連接相容的音樂播放器此功能才有作用。當使用相容的音樂播放器
時，你可以透過交叉推子(Crossfader)來啟動播放或是暫停播放。
7. 交叉推子
此推子是用來混合音軌輸出訊號A與B，當推子至於最左邊的位置時，輸出訊號A的音量由主音量來控制。同樣
的功能也適用於音軌輸出訊號B。當推子由左至右(或由右至左)推動時，將分別改變A與B輸出訊號的強弱，當
推子至於中間時，A與B輸出的強度是平衡的。
8. Cue混音控制
當使用耳機監聽時，此旋鈕的功能用來混音主要輸出與Cue輸出的比例，當旋鈕轉到最左，只能聽到Cue的部
分，當旋鈕轉到最右，只能聽到Program (主要輸出)的部分。當你沒有監聽喇叭只使用監聽耳機時，此功能特
別有用。
9. Cue音量控制
此旋鈕用來控制調整監聽耳機的音量，順時針方向旋轉會增加音量的強度。
10. 劃分Cue按鍵
當按下此鍵時，耳機監聽會被劃分成單聲道Cue (MONO Cue)及單聲道主要輸出(MONO Master)，單聲道
Cue(MONO Cue)聲音出現在耳機的左邊，單聲道主要輸出(MONO Master) 聲音出現在耳機的右邊， 目的為
了便於調整每一音軌，以配合主聲道輸出。音量計量器
顯示的是單聲道主要輸出(MONO Master)。
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左邊所顯示的是單聲道Cue(MONO Cue)，右邊所
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11. 耳機插口
此插座用來連接監聽耳機與混音器，目的用來監聽 Cue的音源。當連接監聽耳機時，請先確認Cue的音量調整
至最小聲。
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部件名稱與功能
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12. Booth電平控制
此旋鈕用來控制輸出Booth 電平的大小。
13. 重低音/燈光 強度控制
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此旋鈕用來控制在後面版所連接的重低音喇叭/燈光的強度。
14. 重低音頻率控制
此旋鈕用來調整控制重低音低音的頻率，控制範圍由40Hz到200Hz。
15. 主輸出左右聲道平衡控制
此旋鈕用來調整控制輸出至左聲道及右聲道的多寡，當旋鈕置中在12點鐘方向時，可表現出立體聲。
16. 電源開關指示
當電源打開時，紅燈亮。
17. 電源開關
此開關為主電源開關。
18. 主輸出控制旋鈕
此旋鈕用來控制主要輸出的音量大小。
: 先完成混音器所有的連接安裝，再打開電源開關，另外必須確認功率放大器是關閉的狀態。
: 為了避免損害喇叭，混音器必須最先開啟及最後關閉。
: 為了避免過大的音量而造成喇叭的損害，當要啟動本混音器時，請先確定調整主輸出音量控制到0的
位置。
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19. PFL/PGM 電平指示
是用來監看立體聲主聲道音量輸出，或是單聲道頻道輸出及主聲道輸出電平大小。當在立體聲模式(STEREO)
時，電平指示的是主要輸出的左右聲道音量。在單音(MONO)的模式且啟動SPLIT CUE的模式下，單聲Cue的
電平顯示在左邊的指示，單聲主要輸出的電平顯示在右邊的指示。
20. 主要輸出立體聲/單聲 切換開關
利用此開關切換，主要輸出為立體聲或是單聲道。
21. 通道推子
這些推子用來控制指定通道的輸出音量。然而，主音量控制是由主輸出控制旋鈕
22. 音源選擇開關
用來切換選擇每一音軌的輸入音源，每一音軌一次只能指定一種輸入音源。
: 使用唱盤機時，音源選擇開關一定必須在“Phono”的位置上。
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23. 通道電平指示
顯示單一通道調整電平大小及等化器後的輸入電平。顯示範圍從-25dB到+11dB。
24. 通道等化器區塊
這些旋鈕調整控制所選擇通道的頻率響應。
高音 - 此旋鈕用來調整通道輸出高音頻的部分，可控制從-15dB到+10dB(在13KHz下)，旋鈕調整至中間的位
置，在高音頻的部分是平坦的。
中音 - 此旋鈕用來調整通道輸出中音頻的部分，可控制從-25dB到+10dB(在1KHz下)，旋鈕調整至中間的位
置，在中音頻的部分是平坦的。
低音 - 此旋鈕用來調整通道輸出低音頻的部分，可控制從-25dB到+10dB(在70Hz下)，旋鈕調整至中間的位
置，在低音頻的部分是平坦的。
25. 通道電平
用來調整所選擇通道的電平大小，從-∞到+14dB。
26. 麥克風插口
這是一個兩用的插口，可適用於標準 1/4英吋的插頭或是平衡式3針XLR公插頭。麥克風的音量由個別的音量控
制旋鈕所控制
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警 告
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注 意
31 32 34332928 35 36 3727 38 39 4030
後背板
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27. 電源連接插座
此電源插座是用來供應主要電源的，透過 - 可拆除式的電源線。
: 連接上電源供應前，請先確定輸入電源符合本混音器上電源供應標籤上的說明需求。
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28. 重低音喇叭/燈光 輸出插口
這1/4吋的接口，提供一個單聲道的輸出，此訊號的大小是由重低音音量控制旋鈕所控制
低音喇叭或是燈光控制器上。
29. 平衡式XLR主音量輸出插口
這個3-pin XLR插口送出高電流平衡輸出訊號。
英呎時。
30. Booth輸出插口
這是一對平衡式的RCA插口，提供平衡式的音量輸出，藉由前面版的Booth Level 旋鈕
不受主音量輸出
31. 主音量輸出縮減調整鈕
這個旋鈕用來削減主輸出音量，用以保護所連接的功率放大器或是喇叭免於受到過大的輸入訊號而造成的損
害。
32. 主音量輸出RCA插口
此插口送出一組低電流非平衡式的輸出訊號。這組插口建議只能使用在較短的連接線或是串接到另一台混音
器。
: 電源線若不符合電源插座，切勿試圖強迫連接上電源線。
。連接此輸出至重
: 這個插口需用于連接推動具有平衡式輸入的功率放大器或是音訊設備。或是當訊號電纜線長度超過15
所控制，這個輸出
所影响。
: 當連接線超過15英呎時，應使用 平衡式XLR插座 29。
部件名稱與功能
21
21
21
39
21
警 告
注 意
注 意
33. 錄音輸出插口
這是一個低電流非平衡式的輸出，是專為外接的錄音設備所設計，輸出音量的控制是藉由每個音軌的音量控制
推子
及音量控制旋鈕 25 所控制，不受主音量控制旋鈕 18 所影響。
34. 線性(LINE)輸入插口
這組插口是用來連接線性輸入所使用，可以連接CD播放器或是卡帶播放器。輸入的音量由音軌音量控制推子
所控制。連接時，輸入音源選擇開關 22 必須切換到線性(LINE)的位置。
35. AUX 輸入插口
CD播放器，卡帶播放器及其他線性樂器，可透過此插口連接，紅色的RCA插座代表是右聲道，白色的RCA插
座代表是左聲道。輸入音量可經由音軌音量控制
置。
36. PH/AUX 輸入插口
輸入模式的切換由通道輸入PHONO/AUX切換開關
使用MM讀取唱針)可透過此插口連接，在通道輸入PHONO/AUX切換開關 39，必須切換到”PHONO”的位
置。CD播放器，卡帶播放器及其他線性等級的樂器連接此插座，必須切換通道輸入PHONO/AUX切換開關 39
在”AUX”的位置時，才能使用。輸入音量可經由通道推子
37. 推子啟動控制連接插口
這個插口用來控制“推子起動”的功能，連接相容的CD播放器及本混音器。使用2.5mm MONO的插頭來連接
相容的CD播放器與混音器。交叉推子的左邊(A)控制CH-A的“推子啟動”， 交叉推子的右邊(B)控制CH-B的
“推子啟動”。進一步瞭解有關如何使用“推子啟動”請參照你所使用的相容CD播放器的說明書”。
38. 接地端子
連接唱盤機時，務必將唱盤機的接地線與此接地端子連接，因為可減低唱針頭所造成的哼聲及雜訊。
: 當音軌輸入PHONO/AUX切換開關 39 切換位於”PHONO”位置時，切勿連結CD播放器，卡帶播放
機等等線性等級的設備到此連接插座。這將會嚴重的危及此混音器。
來調整。音源選擇切換開關 22 必須切換到"AUX”的位
所控制，裝備有MM讀取唱針的唱盤(所有DJ唱盤機均
所控制。
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M50
39. 通道輸入PHONO/AUX切換開關
此開關用來改變PHONO/AUX個別的電壓。
40. 麥克風3 插口
此插座用來連接麥克風與混音器，使用1/4英吋的麥克風音訊插頭。
: 連接唱盤機時，此開關務必切換至 “PHONO”連接 CD播放機等，此開關務必切換至“AUX”。
: 在切換通道輸入選擇時，务必要要確認主電源開關 17 是關閉的。
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連接方式
注 意
1/4"Phone plug
監聽耳機
麥克風
1/4"Phone plug
XLR Plug
1. 進行連接時，請確保交流電源關閉。當連接完成時才可將電源打開。
2. 不同質量的連接線會較大程度地影響聲音的保真度及效果。請使用高質量的音頻線。
3. 請勿使用很長的線纜。確保所有插頭與插口都已插緊。連接未插緊會導致嗡嗡聲，雜音或時斷時續的情況產生
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，可能導致揚聲器的損壞。
4. 連接所有輸入音源。然後連接外接效果器。連接麥克風及監聽耳機。確保所有推子都位在
“零”的位置，且設備必須在關閉狀態。每次僅連接一根連接線，且在連接時注意M50及其他外部設備的左
（L）聲道右（R）聲道位置。
5. 將音訊輸出端與功率放大器和/ 或卡座及/或MD 錄音機與/ 或CD 錄音機等等，依照所示連接圖相連。
：每次都應先打開各種音頻輸入源﹐如CD 播放機﹐然後打開您的混音器﹐最後是各功率放大器。關閉
時按相反的順序進行，先是關閉功率放大器，然後混音器，最後為輸入設備。
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連接方式
3.5mmXLR RCA 6.3mm
唱盤機 唱盤機 唱盤機
主要平衡式功率放大機
非平衡式功率放大機 錄音機
低音炮 CD/MP3播放機
CD/MP3播放機BOOTH功率放大器
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M50
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規格規格
111 mm
118 m m
136 .8 mm
482 mm
177 mm
1. 總體規格說明
電源:
交流電源 100 - 240V, 50/60Hz
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耗電量:
22 W
尺寸:
482mm (寬) X 177mm (深) X 136.8mm (高)
重量:
4.4 公斤
2. 輸入/輸出 阻抗及敏感度 : (等化平坦，最大增益，CUEMIXING 置中，負載100K OHM）
‧ 輸入阻抗及等級:
線性
輔助插口
唱盤插口
麥克風 1,2,3
20K OHM /-14dBV +/-0.1dB (200mV)
47K OHM /-14dBV +/-0.1dB (200mV)
47K OHM /-50dBV+/-0.1dB (2mV)
10K OHM /-54dBV+/-0.1dB (2mV)
‧ 輸出阻抗及等級:
錄音
非平衡式主要輸出
平衡式主要輸出
BOOTH
重低音插口
耳塞口
1K OHM /-10dBV (316mV) +/-2dB
300 OHM / 0dBV (1V) +/-2dB
600 OHM /+4dBm (+1.23V) +/-2dB@ LOAD=600 OHM
600 OHM /+4dBm (1.23V) +/-2dB @ LOAK=600 OHM
600 OHM /+2dBm (975mV) +/-2dB @ LOAK=600 OHM
33 OHM /+9.5dBV (3V) +/-2dB @ LOAD=32 OHM
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3. 頻率響應 : (等化平坦，最大增益，主輸出，負載100K OHM）
線性/輔助插口
唱盤機插口
麥克風
25 - 20k Hz +/- 2dB
25 - 20K Hz +2/-3dB (RIAA)
25 - 20K Hz +2/-3dB
4. 總諧波失真加噪音 : (等化平坦，最大增益，w/ 20kHz LPF，主輸出，負載100K OHM）
唱盤機插口
麥克風
線性
低於0.05%
低於0.15%在1KHz (A-WEIGHTED)
低於0.15%在1KHz (A-WEIGHTED)
規格
5. 最大輸入 : (1 K Hz，主輸出，THD=1%，等化平坦，最大增益)
線性/輔助插口
唱盤機插口
麥克風
6. 最大輸出 : (等化平坦，最大增益，THD=1%，LOAD=100K OHM)
主輸出
錄音
耳塞口
7. 信噪比 : (等化平坦，最大增益，W/20KHz LPF，A-WEIGHTED，主輸出)
線性/輔助插口
耳塞口
麥克風
8. 串音干擾 : (CROSSTALK) (等化平坦，最大增益，W/20KHz LPF，A-WEIGHTED，主輸出)
線性，輔助插口，唱盤機插口
9. 等化器
麥克風1及2
麥克風3及各通道
高於 +4 dBV
高於 -36 dBV
高於 -36 dBV
高於+18 dBV (8.0V)
高於+8dBV (2.5V)
高於+9.5 dBV (3.0V) 負載 32歐姆
高於80 dB
高於69 dB
高於64 dB
高於70dB 在1K Hz 在左右聲道間，
高於70dB 在1K Hz 在不同音軌間
12 +/- 3dB, -12 +/- 3dB, AT 100 Hz
12 +/- 3dB, -12 +/- 3dB, AT 1K Hz
12 +/- 3dB, -12 +/- 3dB, AT 10K Hz
10 +/- 2dB, BELOW -25dB AT 70Hz
10 +/-2dB, BELOW -25dB AT 1KHz
10 +/-2dB, BELOW -15dB AT 13KHz
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M50
10. 通道平衡
11. FADER KILL
通道推子
交叉推子
注意 : 本手冊中的規格及資訊如有變更，恕不另行通知，請上網下載最新版本。
在 3dB之內 從 0 到 -40dB
高於75dB 在1K Hz之下
高於70dB 在1K Hz之下
17
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use the apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider
than the other. A grounding- type plug has two blades and a third grounding prong. The wide blade or the third prong is
provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete
outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where
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they exit from the apparatus.
11. Only use attachments/ accessories specified by the manufacturer.
12. Use only with a cart, stand, tripod, bracket or table specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lighting storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
15. When the mains plug or appliance coupler used as the disconnect device, it shall remain readily operable.
16. Please keep the unit in a good ventilation environment.
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WARNING
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. The apparatus shall not be
exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus.
CAUTION : To reduce the risk of electric shock, do not remove any cover. No userserviceable parts inside. Refer servicing to qualified service personnel only.
The lightning flash with arrowhead symbol within the equilateral triangle is intended to alert the use to the presence
of un-insulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute
a risk of electric shock.
The exclamation point within the equilateral triangle is intended to alert the user to the presence of important
operation and maintenance (servicing) instructions in the literature accompanying this appliance.
CAUTION
To prevent electric shock, do not use this polarized plug with an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.
IMPORTANT SAFETY INSTRUCTIONS
17. All warnings on the appliance and in the operating instructions should be adhered to.
18. Heat - The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances
(including amplifiers) that produce heat.
19 .Power Sources - This product should be operated only from the type of power source indicated on the rating label. If you are
not sure of the type of power supply to your home, consult your product dealer or local power company. For products
intended to operate from battery power, or other sources, refer the operating instructions.
20. Grounding or Polarization - This product may be equipped with a polarized alternation-current line plug (a plug having one
blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to
insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace
your obsolete outlet. Do not defeat the safety purpose of the polarized plug.
21. Power-Cord Protection - Power-supply cords should be routed so that they are not likely to be walked on or pinched by items
placed upon or against them, paying particular attention to the cord in correspondence of plugs, convenience receptacles,
and the point where they exit from the appliance.
22. For AC line powered units - Before returning repaired unit to user, use an ohm-meter to measure from both AC plug blades to
all exposed metallic parts. The resistance should be more than 100,000 ohms.
23. Non-use Periods - The power cord of the appliance should be unplugged from the outlet when left unused for a long period
of time.
24. Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through
openings.
25. Damage Requiring Service - The appliance should be serviced by qualified service personnel when: A. The power-supply cord
or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the appliance; or C. The appliance
has been exposed to rain; or D. The appliance does not appear to operate normally or exhibits a marked change in
performance; or E. The appliance has been dropped, or the enclosure damaged.
26. Servicing - The user should not attempt any service to the appliance beyond that that described in the operating instructions.
All other servicing should be referred to qualified service personnel.
27. Lightning - For added protection for this product during a lightning storm, or when it is left unattended and unused for long
periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the
product due to lightning and power-line surges.
28. Replacement Parts - When replacement parts are required, be sure the service technician has used replacement parts
specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in
fire, electric shock, or other hazards.
29. Safety Check - Upon completion of any service or repairs to this product, ask the service technician to perform safety checks
to determine that the product is in proper operating condition.
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M50
19
MAIN FEATURES
19" 4U Rack-mountable 4-channel mixer
‧
Input: Line x4 (RCA), Aux x4 (RCA), Phono x3 (RCA), MIC x3 (XLR/1/4 Inch Combo x 2,6.3mm x1)
‧
Output: XLR Balanced x1, Unbalanced (RCA) x1, Record (RCA) x1, Booth(6.3mm) x1, Sub woofer(6.3mm) x1,
‧
Fader Start Control Out x 2 (3.5mm)
Three-band EQ with Full output kill for each channel
‧
All Channel assignable to crossfader
‧
Independent Channel Level Meters
‧
45mm VCA replaceable Crossfader
‧
Fully assignable crossfader with fader start function
‧
Fader Start compatible with VOXOA CD/MP3 Player
‧
Split Cue headphone monitor with PFL metering
‧
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Master Out Stereo/Mono Switch
‧
Sub woofer Output with Frequency Adjust
‧
Booth out with level adjust
‧
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PART NAMES AND FUNCTIONS
3
1720 18191921
12
15
13
14
16
10 11
87654 9
25
2226 23
24
1
2
FRONT PANEL
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1. MIC1 & MIC2 level control
This rotary knob adjusts the output volume of MICROPHONE 1 & MICROPHONE 2.
2. MIC EQ control
This rotary knob control the frequency response of MIC1/2 separately over a range from -12dB to +12dB.
HI - This knob is used to adjust the high level of microphone from -12dB to +12dB(at 10KHz). At the center
position, sound is flat.
MID - This knob is used to adjust the mid level of microphone from -12dB to +12dB(at 1KHz). At the center
position, sound is flat.
LOW - This knob is used to adjust the low level of microphone from -12dB to+12dB(at 100Hz). At the center
position, sound is flat.
3. MIC ON/OFF/TALKOVER switch
To set MIC on and off, when switch at the talkover position, the mic1 and 2 on, the sound level for everything
other than that from the MIC will decrease to around 14dB.
M50
21
PART NAMES AND FUNCTIONS
4. Cue button
Pressing in any or all of CUE buttons routes the respective source to the headphone and meter cue sections.
Pressing multiple buttons makes it possible to drive mixed sound from the selected sources.
5. Crossfader assign switch
Putting the switch to the corresponding position, you can select the channel signal to the left or right side of
the crossfader. If you put the switch to the middle position “THRU” means the channel is not assigned to the
crossfader.
6. Fader start button
This function works in conjunction with a compatible player. When used with a compatible player, you can use
the crossfader to start and stop a player with the mixer’s crossfader. The button switches the FADER START
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feature on and off. If this function is activated, the FADER START automatically returns the player to the preset
cue point.
7. Crossfader
This fader is used to blend the output signals of channels A and B together. When the fader is in the full left
position (channel A), the output signal of channel A will be controlled by the master volume level. The same
fundamentals will apply for channel B. Sliding the fader from one position to another will vary the output signals
of channels A and B respectively. When the crossfader is set in the center position, the output signals of both the
channel A and channel B will be even.
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8. Cue mixing control
This function allows you to monitor the Cue level as well as the Program (main output) level in your headphones.
Channels Cue Level may only be monitored if the channel CUE function is selected. To select a channel cue
function press the CUE BUTTON that is directly associated with the specific channel you wish to monitor. You
may use the mixing function to blend both the Cue level and the Program level together. You can vary the output
level to either hear more or less of either of the two levels. Turning the Cue Mixing knob to the CUE position (left)
will allow you to hear more of the Cue level. Turning the knob to the PGM position (right) will allow you to hear
more of the Program level (main output). You may also use the Cue Mixing Control to hear either the Cue level or
the Program level exclusively. If the knob is in the full CUE position you will only hear the cue level, if the knob is in
the full PGM position you will only hear the main output. This function is especially useful when mixing without a
monitor.
9. Cue level control
This rotary knob is used to adjust the headphone volume output level. Turn the knob in a clockwise direction to
increase the headphone volume.
PART NAMES AND FUNCTIONS
10. Split cue button
Used to select whether to split monitor MONO CUE or MONO MASTER sound on the left and right of the
headphones.
‧
In the STEREO mode (SPILT CUE OFF), this button feeds STERO Program (CUE MASTER) and Cue to both
earcups, in the SPLIT CUE(MONO) mode, the headphone circuit provides MONO Cue to the left ear and MONO
Program (MASTER) to the right.
‧
In the STEREO mode (SPILT CUE OFF), the meter indicates the stereo level in the LEFT and RIGHT Master
Outputs. In the SPLIT CUE (MONO) mode, mono Cue level is displayed on the Left meter and mono Program
(CUE MASTER) level is displayed on the right meter.
‧
In the SPLIT CUE (MONO) mode, the button is lit.
11. Phones jack
This jack is used to connect your headphones to the mixer allowing you to monitor the cue source. Always be
sure the CUE LEVEL VOLUME is set to minimum before you put the headphones on.
12. Booth level control
This rotary knob is used to control the level of the BOOTH output terminal on the rear panel. The booth level
is not affected by the master volume and master balance. The booth level is not PFL, it is essentially a second
master output volume with separate output volume control.
13. Sub woofer level control
This rotary knob is used to control the level of SUB WOOFER output terminal on the rear panel.
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14. Sub woofer freq control
This rotary knob is used to adjust the cut off frequency of the low pass filter from 40Hz to 200Hz. The low
adjustment will affect the SUB WOOFER output.
15. Master balance control
This rotary knob is used to control the pan, adjust how much of the signal is sent to the left and right output
level. For true stereo imaging, maintain the knob in the 12 o’clock position.
16. Power indicator
The indicator lights red when power is on.
M50
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PART NAMES AND FUNCTIONS
CAUTION
CAUTION
CAUTION
18
CAUTION
17. Power switch
This is the main power ON/OFF button.
sure you amplifiers are turned off.
off last.
18. Master volume control
This rotary knob is used to control the master output level (main volume).
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19. PFL/PGM level meter
The PFL/PGM LEVEL METER are used to monitor the STEREO master output level or the Mono output level
of channel and master. In the STEREO mode, the meter indicates the stereo level in the left and right Master
Outputs. In the SPLIT CUE (MONO) mode, mono Cue level is displayed on the left meter and mono Program (Cue
MASTER) level is displayed on the right meter. The audio will be distorted when the signal level comes in the red
zone of the LEVEL meter.
20. Master STEREO/MONO switch
Used to select either MONO or STEREO for master output.
: Before you turn the power on be sure you have made all connections to the mixer. Also be
: Remember to avoid damaging pops to the speakers, the mixer is turned on first and turned
: To avoid speaker damage that may be caused by excessive volume, be sure this adjustment
is always set to zero before turning the unit on.
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21. Channel volume fader
These faders are used to control the output signal of any source assigned to its particular channel. However,
master volume is controlled by the MASTER VOLUME CONTROL
.
22. Source selector switch
These switches are used to select the input source assigned to each channel. Each channel may only be
assigned one input source at a time.
: This switch must be in the “phono” position for turntable operation.
23. Channel level meter
Displays the input level after adjusted with GAIN and EQ controls. Display range:-25dB to +11dB.
PART NAMES AND FUNCTIONS
NOTE
1
24. Channel EQ section
These rotary knobs control the frequency response of the selected inputs.
HI - This knob is used to adjust the high-tone from -15dB to +10dB(at 13KHz). At the center position, sound
is flat.
MID - This knob is used to adjust the mid-tone from -25dB to +10dB(at 1KHz). At the center position, sound is
flat.
LOW - This knob is used to adjust the low-tone from -25dB to +10dB(at 70Hz). At the center position, sound is
flat.
: Clipping may occur if adjustments are set to harsh.
25. Channel gain control
This adjustment is used to adjust the level of the selected input -∞to 14dB.
26. Microphone jack
This combo jack will accept a standard 1/4" plug or XLR 3-pin balanced male plug. The volume output level for
microphone will be controlled by its own respective MIC LEVEL CONTROL KNOB
.
ENGLISH
M50
25
PART NAMES AND FUNCTIONS
CAUTION
WARNING
13
CAUTION
12
CAUTION
31 32 34332928 35 36 3727 38 39 4030
REAR PANEL
27. AC Connection
ENGLISH
This connector is used to supply main power to the unit via the include detachable power cord. Use only the
supplied power cord.
: Be sure to only connect this unit to a power outlet that matches the printed power label on
the unit. This cord is designed to fit in one direction only.
: Do not attempt to force a cord if it does not fit and be sure the cord is being inserted
properly.
28. SUB WOOFER / LIGHTING output jack
This 1/4" jack provide a mono line level output of Main out. The signal is affected by the SUB WOOFER LEVEL
CONTROL.
Connect this jack to the SUB WOOFER /LIGHTING input jack on an amplifier.
29. Balanced XLR master output jacks
30. Booth output jacks
31. Master output trim
32. RCA master output
26
The Master Output includes a pair of XLR Balanced jacks. The 3-pin XLR jacks send a high current balanced
output signal.
: These jacks should be used when you will be driving an amp or other audio equipment
with a balanced input, or whenever you will be running a signal line greater than 15 feet.
Always, use these jacks whenever possible.
This stereo pairs of balanced 1/4'' jacks provide a balanced line level output with independent front panel
BOOTH LEVEL CONTROL
and are not affected by the MASTER LEVEL CONTROL 18 .
This knob is used to decrease the master output to protect connected amplifiers and speakers from excessive
input.
The RCA jacks send a low current unbalanced output signal. These jacks should only be used for shorter cable
runs to signal processors or looping to another mixer.
: For cable runs greater than 15 feet use the XLR BALANCED JACKS 29 .
PART NAMES AND FUNCTIONS
18
21
21
39
39
WARNING
39
CAUTION
CAUTION
33. REC output
This is a low current unbalanced output source designed for various tape and CD recorders. The Record Out (REC
OUT) level is dictated by the CHANNEL VOLUME FADER 21 and the CHANNEL GAIN CONTROL 25 , it is not
influenced by the MASTER VOLUME CONTROL
34. Line input jacks
DO NOT CONNECT TURNTABLES TO THESE JACKS! These Jacks are used for line level inputs. Connect CD
players or Tape Decks to line level inputs. Input volume will be controlled by the CHANNEL VOLUME FADER
The channel SOURCE SELECTOR SWITCH 22 must be in the "Line" position, to monitor any source connected
to these jacks.
35. AUX input jacks
CD players, Tape Decks and other line level instruments may only be connected to these jacks. The red colored
RCA jack represents the right channel input and the white represents the left channel input. Input volume will be
controlled by the CHANNEL VOLUME FADER
the "Aux " position, to monitor any source connected to these jacks.
36. PH/AUX input jacks
The type of input must directly reflect the selected mode of the LINE LEVEL SELECTOR SWITCH
equipped with MM pickup cartridge (All DJ turntable use MM pickup cartridges) may be connected to these
jacks as long as the LINE LEVEL SELECTOR SWITCH
and other line level instruments may only be connected to these jacks as long as the LINE LEVEL SELECTOR
SWITCH 39 is in the “AUX” position. Input volume will be controlled by the CHANNEL VOLUME FADER 21 .
the LINE LEVEL SELECTOR SWITCH
DAMAGE YOUR MIXER!
37. Fader start control jacks
This jack is used to control the “FADER START” function between the mixer and a compatible Player. Using
the mini plug included with your player, connect from the player controller out jack to this jack. CH-A “FADER
START” functionality will be controlled by the left side (A) of the CROSSFADER. CH-B “FADER START”
functionality will be controlled by the right side (B) of the CROSSFADER. For more information on “FADER
START” functionality refer to the user manual included with your player. Be sure to only use the mono tip mini
plug included with your player to avoid damage to the mixer and/or the player.
38. GND (GROUND TERMINAL)
Be sure to connect turntable ground leads to either or both of the two available ground terminals. This will
reduce the humming and popping noises associated with magnetic phono cartridges.
39. Channel line level selector swithches
These switches are used to change the voltage line levels of the respected Phono / Aux RCA inputs jacks.
corresponding switch is in the “PHONO” position, and when using line level input devices be
sure the switch is in the “AUX” position.
Selector Switch.
40. MIC 3 jack
This jack is used to connect a microphone to the mixer. Connect you microphone via 1/4 inch jack.
: Never connect line level instruments (CD players, tape decks, etc.) to these jacks when
: When connecting turntables with magnetic cartridges to these jacks be sure the
: Always be sure main power 17 is shut off before change the position of the Line Level
.
. The channel SOURCE SELECTOR SWITCH 22 must be in
. Turntables
is in the “PHONO” position. CD players, Tape Decks
is in the “PHONO” position. THIS MAY SERIOUSLY
.
ENGLISH
M50
27
CAUTION
CONNECTIONS
Headphones
1/4"Phone plug
1/4"Phone plug
XLR Plug
Microphone
1. Make certain AC power is off while making connections.
2. Quality cables make a big difference in fidelity and punch. Use high-quality, audio cables.
3. Do not use excessively long cables. Be sure plugs and jacks are securely fastened. Loose connections cause
hum, noise, or intermittence that could damage your speakers.
4. Connect all stereo input sources. Then connect any effects into the stereo Effect, if used. Connect your
Microphone(s) and monitor headphones. Make sure all faders are at “zero” and the unit is off. Take care to
connect only one cable at a time. Pay attention to L and R position of jacks, on both the VOXOA M50 and
outboard gear.
5. Connect the stereo outputs to the power amplifier(s) and/or tape deck(s) and/or MD recorder(s) and/or CD
recorder(s).
ENGLISH
finally any amplifiers. When turning off, always reverse this operation by turning off amplifiers, then your
mixer, and then input units.
: Always switch on your audio input sources such as CD players first, then your mixer, and
28
CONNECTIONS
Recorder
Sub-woofer
Turntable
CD/MP3 Player
Main unbalanced
power amplifier
Main balanced
power amplifier
CD/MP3 Player
3.5mmXLR RCA 6.3mm
Turntable Turntable
BOOTH
power amplifier
ENGLISH
M50
29
111 mm
118 m m
136 .8 mm
482 mm
177 mm
SPECIFICATIONS
1. GENERAL SECTION
POWER SOURCE:
AC100 - 240V, 50/60Hz
POWER CONSUMPTION:
22 WATTS
DIMENSIONS:
482mm (W) X 177mm (D) X 136.8mm (H)
WEIGHT:
ENGLISH
4.4kg
2. INPUT/OUTPUT IMPEDANCE & SENSITIVITY : (EQ FLAT, MAXIMUM GAIN, CUEMIXING CENTER, LOAD=100K OHM)
INPUT IMPEDANCE AND REFERENCE LEVEL:
‧
LINE
AUX
PHONO
MIC1,2,3
OUTPUT IMPEDANCE AND LEVEL:
‧
REC
MASTER UNBAL.
MASTER BAL.
BOOTH
SUB WOOFER
PHONES
20K OHM /-14dBV +/-0.1dB (200mV)
47K OHM /-14dBV +/-0.1dB (200mV)
47K OHM /-50dBV+/-0.1dB (2mV)
10K OHM /-54dBV+/-0.1dB (2mV)
1K OHM /-10dBV (316mV) +/-2dB
300 OHM / 0dBV (1V) +/-2dB
600 OHM /+4dBm (+1.23V) +/-2dB@ LOAD=600 OHM
600 OHM /+4dBm (1.23V) +/-2dB @ LOAK=600 OHM
600 OHM /+2dBm (975mV) +/-2dB @ LOAK=600 OHM
33 OHM /+9.5dBV (3V) +/-2dB @ LOAD=32 OHM
30
3. FREQUENCY RESPONSE : (EQ FLAT,MAXIMUM GAIN, MASTER OUTPUT, LOAD=100K OHM)
LINE, AUX
PHONO
MIC
25 - 20K Hz +/-2dB
25 - 20K Hz +2/-3dB (RIAA)
25 - 20K Hz +2/-3dB
SPECIFICATIONS
4. THD + N : (EQ FLAT, MAXIMUM GAIN, w/ 20kHz LPF, MASTER OUTPUT, LOAD=100K OHM)
LINE, AUX
PHONO
MIC
5. MAXIMUM INPUT : (1 K Hz, MASTER OUTPUT, THD=1%, EQ FLAT, MAXIMUM GAIN)
LINE, AUX
PHONO
MIC
6. MAXIMUM OUTPUT : (EQ FLAT, MAXIMUM GAIN, THD=1%, LOAD=100K OHM)
MASTER
REC
PHONES
7. S/N RATIO : (MAXIMUM GAIN, EQ FLAT, W/20KHz LPF, A-WEIGHTED, MASTER OUTPUT)
LINE, AUX
PHONO
MIC
8. CROSSTALK : (MAXIMUM GAIN, EQ FLAT, W/20KHz LPF, A-WEIGHTED, MASTER OUTPUT)
LINE, AUX, PHONO
LESS THAN 0.05%
LESS THAN 0.15% @ 1KHz (A-WEIGHTED)
LESS THAN 0.15% @ 1KHz (A-WEIGHTED)
MORE THAN +4 dBV
MORE THAN -36 dBV
MORE THAN -36 dBV
MORE THAN +18 dBV (8.0V)
MORE THAN +8dBV (2.5V)
MORE THAN +9.5 dBV (3.0V) @ LOAD=32 OHM
MORE THAN 80 dB
MORE THAN 69 dB
MORE THAN 64 dB
MORE THAN 70dB @ 1K Hz BETWEEN L AND R CHANNEL
MORE THAN 70dB @1KHz BETWEEN CHANNELS
ENGLISH
9. EQ
MIC1/2
MIC3/CHANNEL
10. CHANNEL BALANCE
11. FADER KILL
MORE THAN 75dB AT 1K Hz FOR CHANNEL FADER
MORE THAN 70dB AT 1K Hz FOR CROSS FADER
12 +/- 3dB, -12 +/- 3dB, AT 100 Hz
12 +/- 3dB, -12 +/- 3dB, AT 1K Hz
12 +/- 3dB, -12 +/- 3dB, AT 10K Hz
10 +/- 2dB, BELOW -25dB AT 70Hz
10 +/-2dB, BELOW -25dB AT 1KHz
10 +/-2dB, BELOW -15dB AT 13KHz
Within 3dB FROM 0 TO -40dB
NOTES : Specifications and improvements in the design of this unit and this manual are subject to change
without any prior written notice.
M50
31
Printed in ChinaVERSION 1.0
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