Samson MDR624 User Manual

5 (1)

 

MIC IN

 

 

MIC IN

 

 

AUX RET

 

AUX SEND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

LEFT/MONO

 

 

 

CR OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

RIGHT

 

PHONES

 

 

 

 

 

 

LINE IN

 

LINE IN

 

3/L

 

5/L

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

30

 

 

 

 

 

 

 

 

 

 

 

GAIN

 

 

GAIN

 

 

 

LINE IN

 

LINE IN

 

MIX OUTPUT

 

 

 

 

 

 

 

 

4/R

 

6/R

 

 

R

 

 

 

 

5 -26

+26 60

5 -26

+26 60

 

 

 

 

 

 

 

 

 

 

 

0

 

 

0

 

 

0

 

0

 

 

 

2T IN

2T OUT

 

5

5 12KHF

5

5 12KHF

5

5 12KHF

5

5 12KHF

 

 

 

 

 

 

10

 

10

10

 

10

10

 

10

10

 

10

LEFT

 

 

LEFT

15

15

15

15

15

15

15

15

 

 

 

 

 

0

 

 

0

 

 

0

 

0

 

 

 

 

 

 

5

5 2.5KMF

5

5 2.5KMF

5

5 2.5KMF

5

5 2.5KMF

RIGHT

 

 

RIGHT

10

 

10

10

 

10

10

 

10

10

 

10

 

 

 

 

15

15

15

15

15

15

15

15

AUX RETURN

 

 

 

0

 

 

0

 

 

0

 

0

 

 

5

 

 

 

5

5

LF

5

5

LF

5

5

LF

5

5

LF

 

 

 

 

80Hz

80Hz

80Hz

80Hz

 

 

PHANTOM

POWER

10

 

10

10

 

10

10

 

10

10

 

10

 

 

 

 

15

15

15

15

15

15

15

15

0

10

CLIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12

 

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

2TK TO MIX

+6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-6

 

0

10

0

10

0

10

0

10

 

 

-12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

0

 

 

0

 

0

 

 

2TK TO C/R

-18

 

 

 

PAN

 

 

PAN

 

 

BAL

 

 

BAL

 

 

-24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT LEVEL

L

R

 

L

R

 

L

R

 

L

R

 

 

 

 

 

 

5

 

 

5

 

 

5

 

5

 

 

5

 

5

 

 

PEAK

 

PEAK

 

PEAK

 

PEAK

 

 

 

 

0

10

0

10

0

10

0

10

0

10

0

10

LEVEL

 

LEVEL

 

 

LEVEL

 

LEVEL

 

 

LEVEL

LEVEL

CHANNEL 1

 

CHANNEL 2

 

CHANNEL 3/4

CHANNEL 5/6

CR / PHONES

MAIN LEVEL

Series MDR

SIX CHANNEL MIXER

Mixers

Safety Instructions/Consignes de sécurité/Sicherheitsvorkehrungen/Instrucciones de seguridad

WARNING: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. To reduce the hazard of electrical shock, do not remove cover or back. No user serviceable parts inside. Please refer all servicing to qualified personnel.The lightning flash with an arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

Important Safety Instructions

1.Please read all instructions before operating the unit.

2.Keep these instructions for future reference.

3.Please heed all safety warnings.

4.Follow manufacturers instructions.

5.Do not use this unit near water or moisture.

6.Clean only with a damp cloth.

7.Do not block any of the ventilation openings. Install in accordance with the manufacturers 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 third prong is provided for your safety. When the provided plug does not fit your outlet, consult an electrician for replacement of the obsolete outlet.

10.Protect the power cord from being walked on and pinched particularly at plugs, convenience receptacles and at the point at which they exit from the unit.

11.Unplug this unit during lightning storms or when unused for long periods of time.

12.Refer all servicing to qualified personnel. Servicing is required when the unit has been damaged in any way, such as power supply cord or plug damage, or if liquid has been spilled or objects have fallen into the unit, the unit has been exposed to rain or moisture, does not operate normally, or has been dropped.

ACHTUNG: Um die Gefahr eines Brandes oder Stromschlags zu verringern, sollten Sie dieses Gerät weder Regen noch Feuchtigkeit aussetzen.Um die Gefahr eines Stromschlags zu verringern, sollten Sie weder Deckel noch Rückwand des Geräts entfernen. Im Innern befinden sich keine Teile, die vom Anwender gewartet werden können. Überlassen Sie die Wartung qualifiziertem

Fachpersonal.Der Blitz mit Pfeilspitze im gleichseitigen Dreieck soll den Anwender vor nichtisolierter “gefährlicher Spannung” im Geräteinnern warnen. Diese Spannung kann so hoch sein, dass die Gefahr eines Stromschlags besteht. Das Ausrufezeichen im gleichseitigen Dreieck soll den Anwender auf wichtige Bedienungsund Wartungsanleitungen aufmerksam machen, die im mitgelieferten Informationsmaterial näher beschrieben werden.

Wichtige Sicherheitsvorkehrungen

1.Lesen Sie alle Anleitungen, bevor Sie das Gerät in Betrieb nehmen.

2.Bewahren Sie diese Anleitungen für den späteren Gebrauch gut auf.

3.Bitte treffen Sie alle beschriebenen Sicherheitsvorkehrungen.

4.Befolgen Sie die Anleitungen des Herstellers.

5.Benutzen Sie das Gerät nicht in der Nähe von Wasser oder Feuchtigkeit.

6.Verwenden Sie zur Reinigung des Geräts nur ein feuchtes Tuch.

7.Blockieren Sie keine Belüftungsöffnungen. Nehmen Sie den Einbau des Geräts nur entsprechend den Anweisungen des Herstellers vor.

8.Bauen Sie das Gerät nicht in der Nähe von Wärmequellen wie Heizkörpern, Wärmeklappen, Öfen oder anderen Geräten (inklusive Verstärkern) ein, die Hitze erzeugen.

9.Setzen Sie die Sicherheitsfunktion des polarisierten oder geerdeten Steckers nicht außer Kraft. Ein polarisierter Stecker hat zwei flache, unterschiedlich breite Pole. Ein geerdeter Stecker hat zwei flache Pole und einen dritten Erdungsstift. Der breitere Pol oder der dritte Stift dient Ihrer Sicherheit. Wenn der vorhandene Stecker nicht in Ihre Steckdose passt, lassen Sie die veraltete Steckdose von einem Elektriker ersetzen.

10.Schützen Sie das Netzkabel dahingehend, dass niemand darüber laufen und es nicht geknickt werden kann. Achten Sie hierbei besonders auf Netzstecker, Mehrfachsteckdosen und den Kabelanschluss am Gerät.

11.Ziehen Sie den Netzstecker des Geräts bei Gewittern oder längeren Betriebspausen aus der Steckdose.

12.Überlassen Sie die Wartung qualifiziertem Fachpersonal. Eine Wartung ist notwendig, wenn das Gerät auf irgendeine Weise, beispielsweise am Kabel oder Netzstecker beschädigt wurde, oder wenn Flüssigkeiten oder Objekte in das Gerät gelangt sind, es Regen oder Feuchtigkeit ausgesetzt war, nicht mehr wie gewohnt betrieben werden kann oder fallen gelassen wurde.

ATTENTION: Pour éviter tout risque d’électrocution ou d’incendie, ne pas exposer cet appareil à la pluie ou à l’humidité. Pour éviter tout risque d’électrocution, ne pas ôter le couvercle ou le dos du boîtier. Cet appareil ne contient aucune pièce remplaçable par l'utilisateur. Confiez toutes les réparations à un personnel qualifié. Le signe avec un éclair dans un triangle prévient l’utilisateur de la présence d’une tension dangereuse et non isolée dans l’appareil. Cette tension constitue un risque d’électrocution. Le signe avec un point d’exclamation dans un triangle prévient l’utilisateur d’instructions importantes relatives à l’utilisation et à la maintenance du produit.

Consignes de sécurité importantes

1.Veuillez lire toutes les instructions avant d’utiliser l’appareil.

2.Conserver ces instructions pour toute lecture ultérieure.

3.Lisez avec attention toutes les consignes de sécurité.

4.Suivez les instructions du fabricant.

5.Ne pas utiliser cet appareil près d’une source liquide ou dans un lieu humide.

6.Nettoyez l’appareil uniquement avec un tissu humide.

7.Veillez à ne pas obstruer les fentes prévues pour la ventilation de l’appareil. Installez l’appareil selon les instructions du fabricant.

8.Ne pas installer près d’une source de chaleur (radiateurs, etc.) ou de tout équipement susceptible de générer de la chaleur (amplificateurs de puissance par exemple).

9.Ne pas retirer la terre du cordon secteur ou de la prise murale. Les fiches canadiennes avec polarisation (avec une lame plus large) ne doivent pas être modifiées. Si votre prise murale ne correspond pas au modèle fourni, consultez votre électricien.

10.Protégez le cordon secteur contre tous les dommages possibles (pincement, tension, torsion,, etc.). Veillez à ce que le cordon secteur soit libre, en particulier à sa sortie du boîtier.

11.Déconnectez l’appareil du secteur en présence d’orage ou lors de périodes d’inutilisation prolongées.

12.Consultez un service de réparation qualifié pour tout dysfonctionnement (dommage sur le cordon secteur, baisse de performances, exposition à la pluie, projection liquide dans l’appareil, introduction d’un objet dans le boîtier, etc.).

PRECAUCION: Para reducir el riesgo de incendios o descargas, no permita que este aparato quede expuesto a la lluvia o la humedad. Para reducir el riesgo de descarga eléctrica, nunca quite la tapa ni el chasis. Dentro del aparato no hay piezas susceptibles de ser reparadas por el usuario. Dirija cualquier reparación al servicio técnico oficial. El símbolo del relámpago dentro del triángulo equilátero pretende advertir al usuario de la presencia de “voltajes peligrosos” no aislados dentro de la carcasa del producto, que pueden ser de la magnitud suficiente como para constituir un riesgo de descarga eléctrica a las personas. El símbolo de exclamación dentro del triángulo equilátero quiere advertirle de la existencia de importantes instrucciones de manejo y mantenimiento (reparaciones) en los documentos que se adjuntan con este aparato.

Instrucciones importantes de seguridad

1.Lea todo este manual de instrucciones antes de comenzar a usar la unidad.

2.Conserve estas instrucciones para cualquier consulta en el futuro.

3.Cumpla con todo lo indicado en las precauciones de seguridad.

4.Observe y siga todas las instrucciones del fabricante.

5.Nunca utilice este aparato cerca del agua o en lugares húmedos.

6.Limpie este aparato solo con un trapo suave y ligeramente humedecido.

7.No bloquee ninguna de las aberturas de ventilación. Instale este aparato de acuerdo a las instrucciones del fabricante.

8.No instale este aparato cerca de fuentes de calor como radiadores, calentadores, hornos u otros aparatos (incluyendo amplificadores) que produzcan calor.

9.No anule el sistema de seguridad del enchufe de tipo polarizado o con toma de tierra. Un enchufe polarizado tiene dos bornes, uno más ancho que el otro. Uno con toma de tierra tiene dos bornes normales y un tercero para la conexión a tierra. El borne ancho o el tercero se incluyen como medida de seguridad. Cuando el enchufe no encaje en su salida de corriente, llame a un electricista para que le cambie su salida anticuada.

10.Evite que el cable de corriente quede en una posición en la que pueda ser pisado o aplastado, especialmente en los enchufes, receptáculos y en el punto en el que salen de la unidad.

11.Desconecte de la corriente este aparato durante las tormentas eléctricas o cuando no lo vaya a usar durante un periodo de tiempo largo.

12.Dirija cualquier posible reparación solo al servicio técnico oficial. Deberá hacer que su aparato sea reparado cuando esté dañado de alguna forma, como si el cable de corriente o el enchufe están dañados, o si se han derramado líquidos o se ha introducido algún objeto dentro de la unidad, si esta ha quedado expuesta a la lluvia o la humedad, si no funciona normalmente o si ha caído al suelo.

Table of Contents

Introduction

2

MDR624 Features

3

Controls and Functions

 

Front and Rear Panel Layout

4–5

Mono Input Channel Section

6–7

Master Section

8–9

MDR624 Input and Output Connections

10–11

Operating the MDR624

12–13

System Set-ups

14–15

MDR624 Wiring Guide

16

Specifications

17

Block Diagram

18

Notes

18-19

Copyright 2004, Samson Technologies Corp.

Printed January, 2004

Samson Technologies Corp. 575 Underhill Blvd.

P.O. Box 9031

Syosset, NY 11791-9031

Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 516-364-3888

www.samsontech.com

Introduction

Congratulations on your purchase of the Samson MDR624 mixer! The MDR624 is a six channel mixer, with two low noise microphone pre-amps. In addition to the two mono Mic/line inputs, there are two channels with left and right inputs to handle stereo signals. For added flexibility, you can change the tone quality of your microphones or other line inputs by using the three-band channel equalizers. Connecting external effects like a reverb or digital delay to the MDR624 is easy thanks to the Aux send on each channel along with the stereo Aux Return in the master section. LED indicators for Power, Phantom, Peak and Main Output Level make it easy to keep your levels set correctly and minimize distortion. Clean, clear sound reproduction, packaged in a rugged enclosure, ensure reliable high quality sound from performance to performance. Optimized for recording, live sound reinforcement and commercial installations, the MDR624 is an ideal mixer solution offering big sound in a compact package.

In these pages, you’ll find a detailed description of the features of the MDR624 mixer, as well as a description of its front and rear panels, step-by-step instructions for its setup and use, and full specifications. You’ll also find a warranty card enclosed—please don’t forget to fill it out and mail it in so that you can receive online technical support and so we can send you updated information about these and other Samson products in the future.

With proper care and adequate air circulation, your MDR624 will operate trouble free for many years. We recommend you record your serial number in the space provided below for future reference.

Serial number:

Date of purchase:

Should your unit ever require servicing, a Return Authorization number (RA) must be obtained before shipping your unit to Samson. Without this number, the unit will not be accepted. Please call Samson at 1-800-3SAMSON (1-800-372-6766) for a Return Authorization number prior to shipping your unit. Please retain the original packing materials and if possible, return the unit in the original carton and packing materials.

2

MDR624 Features

 

MIC IN

 

 

MIC IN

 

 

AUX RET

 

AUX SEND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

LEFT/MONO

 

 

 

CR OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

RIGHT

 

PHONES

 

 

 

 

 

 

LINE IN

 

LINE IN

 

3/L

 

5/L

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

30

 

 

 

 

 

 

 

 

 

 

 

GAIN

 

 

GAIN

 

 

 

LINE IN

 

LINE IN

 

MIX OUTPUT

 

 

 

 

 

 

 

 

4/R

 

6/R

 

 

R

 

 

 

 

5 -26

+26 60

5 -26

+26 60

 

 

 

 

 

 

 

 

 

 

 

0

 

 

0

 

 

0

 

0

 

 

 

2T IN

2T OUT

 

5

5 12KHF

5

5 12KHF

5

5 12KHF

5

5 12KHF

 

 

10

 

10

10

 

10

10

 

10

10

 

10

LEFT

 

 

LEFT

15

15

15

15

15

15

15

15

 

 

 

 

 

0

 

 

0

 

 

0

 

0

 

 

 

 

 

 

5

5 2.5KMF

5

5 2.5KMF

5

5 2.5KMF

5

5 2.5KMF

RIGHT

 

 

RIGHT

10

 

10

10

 

10

10

 

10

10

 

10

 

 

 

 

15

15

15

15

15

15

15

15

AUX RETURN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

LF

 

0

LF

 

0

LF

0

 

LF

5

 

 

 

5

5

5

5

5

5

5

5

 

 

 

 

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

80Hz

 

 

PHANTOM

POWER

10

 

10

10

 

10

10

 

10

10

 

10

 

 

 

 

15

15

15

15

15

15

15

15

0

10

CLIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12

 

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

2TK TO MIX

+6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-6

 

0

10

0

10

0

10

0

10

 

 

-12

 

 

 

 

 

 

 

 

 

 

 

 

 

2TK TO C/R

-18

 

 

0

PAN

 

0

PAN

 

0

BAL

0

 

BAL

 

 

 

 

 

 

 

 

 

 

 

 

 

-24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT LEVEL

L

R

 

L

R

 

L

R

 

L

R

 

 

 

 

 

 

5

 

 

5

 

 

5

 

5

 

 

5

 

5

 

 

PEAK

 

PEAK

 

PEAK

 

PEAK

 

 

 

 

0

10

0

10

0

10

0

10

0

10

0

10

LEVEL

 

LEVEL

 

 

LEVEL

 

LEVEL

 

 

LEVEL

LEVEL

CHANNEL 1

 

CHANNEL 2

 

CHANNEL 3/4

CHANNEL 5/6

CR / PHONES

MAIN LEVEL

The Samson MDR624 six channel mixer, is a comprehensive, all-in-one solution for live sound, recording, fixed installation and post production applications. Here are some of its main features:

Six channels – Two Mic/Line plus two Stereo inputs.

Flexible design topology ideal for live sound, recording and post production.

2 Track To Mix Level control allows you to mix in a CD, DAT, Cassette, Computer Sound Card or Mini Disk with the channel faders.

Three-band channel equalizer, +/-15dB at 80Hz, 2.5 KHz and 12KHz provides precise and musical results in sound shaping.

An Auxiliary Send for external effects, on stage monitor mix, or headphone mixing.

Eight segment LED Meter with VU ballistics displays the main MIX output.

High quality, low noise, discrete microphone pre-amplifiers with 48-Volt phantom power, provide Maximum Dynamic Range and transparent audio.

Advanced circuit design using discrete components and high quality, low noise op-amps carefully selected at each stage of the signal path.

Quality build and rugged construction ensure reliable performance from venue to venue and session to session.

Three-year extended warranty.

3

Samson MDR624 User Manual

Controls and Functions

 

 

 

 

 

 

 

 

 

Front and Rear Panel Layout

 

 

 

 

 

 

 

 

 

 

 

 

1

11

 

12

 

 

 

 

 

 

13

 

14

 

15

 

16

2

 

MIC IN

 

 

MIC IN

 

 

AUX RET

 

AUX SEND

 

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

3

 

 

 

 

 

 

LEFT/MONO

 

 

 

CR OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RIGHT

 

PHONES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

 

LINE IN

 

LINE IN

 

3/L

 

5/L

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

30

 

 

 

 

 

 

 

 

 

 

 

19

 

GAIN

 

 

GAIN

 

 

 

LINE IN

 

LINE IN

 

MIX OUTPUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

4/R

 

6/R

 

 

R

 

 

 

 

 

5 -26

+26 60

5 -26

+26 60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

5

 

0

 

 

0

 

 

0

 

0

 

 

2T IN

2T OUT

 

 

5

5 12KHF

5

5 12KHF

5

5 12KHF

5

5 12KHF

 

21

 

 

 

 

10

 

10

10

 

10

10

 

10

10

 

10

LEFT

 

 

LEFT

 

 

 

 

 

 

 

22

 

15

15

15

15

15

15

15

15

 

 

 

 

 

 

 

 

 

 

6

 

0

 

 

0

 

 

0

 

0

 

 

 

 

 

 

 

5

5 2.5KMF

5

5 2.5KMF

5

5 2.5KMF

5

5 2.5KMF

RIGHT

 

 

RIGHT

 

 

 

 

23

 

10

 

10

10

 

10

10

 

10

10

 

10

 

 

 

 

 

15

15

15

15

15

15

15

15

AUX RETURN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

LF

 

0

LF

 

0

LF

0

 

LF

5

 

 

 

 

7

5

5

5

5

5

5

5

5

 

 

 

 

 

80Hz

80Hz

80Hz

80Hz

 

 

PHANTOM

POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

10

10

 

10

10

 

10

10

 

10

 

 

 

 

 

 

15

15

15

15

15

15

15

15

0

10

CLIP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+12

 

 

 

 

AUX

 

 

AUX

 

 

AUX

 

 

AUX

2TK TO MIX

+6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-6

 

 

 

0

10

0

10

0

10

0

10

 

 

-12

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

0

 

 

0

 

0

 

 

2TK TO C/R

-18

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PAN

 

PAN

 

BAL

 

BAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

R

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT LEVEL

 

L

R

 

L

R

 

L

R

 

L

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

5

 

 

5

 

5

 

 

5

 

5

 

 

 

 

PEAK

 

PEAK

 

PEAK

 

PEAK

 

 

 

 

 

 

0

10

0

10

0

10

0

10

0

10

0

10

24

 

LEVEL

 

LEVEL

 

 

LEVEL

 

LEVEL

 

 

LEVEL

 

LEVEL

 

CHANNEL 1

 

CHANNEL 2

 

CHANNEL 3/4

CHANNEL 5/6

CR / PHONES

MAIN LEVEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

 

28

 

 

 

 

 

 

27

 

 

26

 

 

 

 

 

A

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PHANTOM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DESIGNED AND ENGINEERED IN THE UNITED STATES BY SAMSON TECHNOLOGIES

 

 

 

 

 

 

ON

OFF

 

 

 

 

ON

OFF

 

 

 

 

CAUTION

CAUTION:TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RISK OF ELECTRICAL SHOCK

 

DO NOT REMOVE BOTTOM COVER

 

 

POWER

 

 

 

 

DO NOT OPEN

 

NON SERVICEABLE PARTS INSIDE

 

 

 

 

 

 

RISQUE DE SHOCK ELECTRIQUE

 

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

 

 

 

 

 

 

 

 

 

 

NE PAS OUVRIR

REFER SERVICING TO QUALIFIED PERSONNEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MADE IN CHINA

AC ADAPTOR

SERIAL NUMBER :

 

 

C

4

Front and Rear Panel Layout

Front and Rear Panel Layout

FRONT PANEL

 

MIC – Input connector for Low-Noise Microphone pre-

18 2 TRACK INPUTS – Connect the output from a DAT,

1

 

Cassette, Mini Disk or Hard Disk Recording system.

 

amp.

 

 

 

LINE –Input connector for Line level inputs.

19

2 TRACK OUTPUTS – Connect to the input of a DAT,

2

 

Cassette, Mini Disk or Hard Disk Recording system.

3

GAIN – Used to set the input level of the mic pre and line

20

AUX RETURN – Used to mix in level of the effects

 

input.

 

return.

4

HIGH FREQUENCY – Controls the high band of the

21

PHANTOM – Indicates that the 48 Volt Phantom

 

Channel Equalizer, +/- 15 dB at 12KHz.

 

Power is on.

5

MID FREQUENCY – Controls the mid band of the Channel

22

POWER – Indicates the MDR624 is powered up.

 

Equalizer, +/- 15 dB at 2.5KHz.

 

 

 

LOW FREQUENCY – Controls the low band of the Channel

23 OUTPUT METER - Eight segment display with VU

6

 

ballistics indicates main Mix level.

 

Equalizer, +/- 15 dB at 80Hz.

 

 

 

AUX – Pre fader auxiliary send that can be used with an

24

2 TRACK TO MIX - Switch used to mix the 2 track

7

 

input with the mix from the channel inputs.

 

external effects processor, or to create a cue or monitor

 

 

 

mix.

25

2 TRACK TO CR – Switches between the main Mix

8

PAN – Controls the channel’s position between left and

 

and the 2 Track in the Control Room output.

 

right in the stereo bus.

 

 

 

 

26

MAIN LEVEL – Used to control the overall volume of

9

PEAK – Red LED will illuminate indicating when the

 

the Left and Right main Mix outputs.

 

GAIN has been adjusted too high.

 

 

 

 

27

C ROOM/HEADPHONE – Adjusts the volume of the

10

LEVEL – Audio taper fader provides smooth control over

 

control room speakers or headphones.

 

level changes.

 

 

 

 

28

BALANCE – Controls the channel’s position between

11

RIGHT LINE – 1/4-inch phone input connector for the right

 

left and right in the stereo inputs.

 

line input for the stereo channels.

 

 

12

LEFT LINE - 1/4-inch phone input connector for the Left

 

 

 

Line input for the stereo channels.

 

 

 

AUX RET – Input connector from external line level

REAR PANEL

13

 

 

sources.

14AUX SEND – Line level output from the Auxiliary bus.

15HEADPHONE JACK – Connect stereo headphones here.

16CR OUTPUT– Left and Right Control Room output connectors for connecting a monitor system.

17MIX OUTPUT – Left and Right main Mix output connectors.

APOWER – Switches on the MDR624’s main power.

BPHANTOM – Engages the 48-Volt Phantom power supply to microphone pre-amps.

CAC ADAPTOR INLET – Connect External AC power supply here.

5

Controls and Functions

MONO INPUT CHANNEL SECTION

The following section details each part of the MDR624’s input channels including the GAIN control, 3-BAND EQ, AUX send, PAN, BALANCE and LEVEL controls. The input channels One and Two on the MDR624 feature high quality, discrete transistor pre-amps providing transparency and extended dynamic range on standard XLR connectors. Channels 3/4 and 5/6 are stereo input channels that accept line level signals on standard 1/4" phone connectors for either balanced (TRS – TIP/ RING/SLEEVE) or unbalanced (TS – TIP/SLEEVE) connections. A detailed explanation of the Input, as well as the Output connectors, can be found in the following section “Input and Output Connections” on page 11 of this manual.

1

2

3

GAIN

The MDR624’s pre-amp stage has a variable GAIN control, which is used to set the sensitivity of the input. Because the input can accept either a mic or line level signal, the GAIN control operates in two

ranges based on which input is being used. When a microphone is connected to the input, the range is

5 to 60dB, and when a line is connected, the range is –26 to +26dB. For more infor-

 

 

mation on using the GAIN control see the section “CONNECTING MICROPHONES AND INSTRU-

30

GAIN

1 G

MENTS” on page 12 of this manual.

 

5 -26

+26 60

CHANNEL EQUALIZER

 

 

The MDR624 input channels feature a 3-band equalizer allowing you to adjust the

 

0

high, mid, and low frequencies independently on each channel. The channel’s fre-

 

5

5 HF

quency response is flat when the knobs are in the "12:00" position. Rotating the

 

12K

10

10

knob towards the right will boost the corresponding frequency band by up to 15dB,

 

 

and rotating it towards the left will cut the frequency by up to 15dB. The frequency

15

15

centers, range of boost or cut, and equalizer type for each band are as follows:

2 5

0

High: 12KHz +/- 15dB shelving type

5 2.5KMF

Mid: 2.5KHz +/- 15dB peaking type

10

10

Low: 80Hz +/- 15dB shelving type

 

 

 

15

15

AUX SEND

5

0

5 80Hz

 

 

LF

The AUX section is often used for a monitor mix in a live sound mixing, or for a

10

10

 

 

headphone mix in a recording application. Each input channel includes an Aux send

15

15

 

which controls the amount of that channel’s signal that is sent to the Aux bus. For

3

 

more information on using the AUX control see the section “SENDING AN INDEPENDENT MIX

AUX

 

 

TO THE MONITOR SPEAKERS” on page 13 of this manual.

 

 

0 10

6

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