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MDR

Series Mixers

HF

12K

0

15

10

10

5

5

15

MF

2.5K

15

10

10

5

15

0

5

0

LF

80Hz

0

15

10

10

5

15

5

AUX

0

10

PAN

0

L

R

0

LEVEL

0

10

HF

12K

0

15

10

10

5

5

15

MF

2.5K

15

10

10

5

15

0

5

0

LF

80Hz

0

15

10

10

5

15

5

AUX

0

10

HF

12K

0

15

10

10

5

5

15

MF

2.5K

15

10

10

5

15

0

5

0

LF

80Hz

0

15

10

10

5

15

5

AUX

0

10

HF

12K

0

15

10

10

5

5

15

MF

2.5K

15

10

10

5

15

0

5

0

LF

80Hz

0

15

10

10

5

15

5

AUX

0

10

PAN

0

L

R

0

BAL

PEAK

PEAK

PEAK

PEAK

0

L

R

0

 BAL

0

L

R

0

5

5

LEVEL

0

10

LEVEL

0

10

5

5

LEVEL

0

10

5

LEVEL

0

10

5

LEVEL

0

10

LEFT

RIGHT

LEFT

RIGHT

PHANTOM

POWER

CLIP

+12

+6

0

-6

-12

-18

-24

L

R

2T IN

2T OUT

AUX RETURN

5

0

10

2TK TO MIX

2TK TO C/R

OUTPUT LEVEL

30

5      

  -26

      60 

+26 

GAIN

30

5      

  -26

      60 

+26 

GAIN

LINE IN

LINE IN

LINE IN

MIC IN

MIC IN

LINE IN

3/L

4/R

5/L

6/R

AUX RET

LEFT/MONO

RIGHT

AUX SEND

CR OUTPUT

MIX OUTPUT

L

R

L

R

PHONES

CHANNEL 2

CHANNEL 3/4

CHANNEL 5/6

CR / PHONES

MAIN LEVEL

CHANNEL 1

SIX CHANNEL MIXER

Summary of Contents for MDR624

Page 1: ...10 10 5 15 0 5 0 LF 80Hz 0 15 10 10 5 15 5 AUX 0 10 PAN 0 L R 0 BAL PEAK PEAK PEAK PEAK 0 L R 0 BAL 0 L R 0 5 5 LEVEL 0 10 LEVEL 0 10 5 5 LEVEL 0 10 5 LEVEL 0 10 5 LEVEL 0 10 LEFT RIGHT LEFT RIGHT PHANTOM POWER CLIP 12 6 0 6 12 18 24 L R 2T IN 2T OUT AUX RETURN 5 0 10 2TK TO MIX 2TK TO C R OUTPUT LEVEL 30 5 26 60 26 GAIN 30 5 26 60 26 GAIN LINE IN LINE IN LINE IN MIC IN MIC IN LINE IN 3 L 4 R 5 L ...

Page 2: ...allen into the unit the unit has been exposed to rain or moisture does not operate normally or has been dropped 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 Dirij...

Page 3: ...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 ...

Page 4: ...ution 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 sup port ...

Page 5: ... components and high quality low noise op amps carefully select ed 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 HF 12K 0 15 10 10 5 5 15 MF 2 5K 15 10 10 5 15 0 5 0 LF 80Hz 0 15 10 10 5 15 5 AUX 0 10 PAN 0 L R 0 LEVEL 0 10 HF 12K 0 15 10 10 5 5 15 MF 2 5K 15 10 10 5 15 0 5 ...

Page 6: ...2TK TO C R OUTPUT LEVEL 30 5 26 60 26 GAIN 30 5 26 60 26 GAIN LINE IN LINE IN LINE IN MIC IN MIC IN LINE IN 3 L 4 R 5 L 6 R AUX RET LEFT MONO RIGHT AUX SEND CR OUTPUT MIX OUTPUT L R L R PHONES CHANNEL 2 CHANNEL 3 4 CHANNEL 5 6 CR PHONES MAIN LEVEL CHANNEL 1 2 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Controls and Functions POWER PHANTOM ON ON OFF OFF AC ADAPTOR MADE ...

Page 7: ...us 15 HEADPHONE JACK Connect stereo headphones here 16 CR OUTPUT Left and Right Control Room output connec tors for connecting a monitor system 17 MIX OUTPUT Left and Right main Mix output connec tors 18 2 TRACK INPUTS Connect the output from a DAT Cassette Mini Disk or Hard Disk Recording system 19 2 TRACK OUTPUTS Connect to the input of a DAT Cassette Mini Disk or Hard Disk Recording system 20 A...

Page 8: ...6 to 26dB For more infor mation on using the GAIN control see the section CONNECTING MICROPHONES AND INSTRU MENTS on page 12 of this manual CHANNEL EQUALIZER The MDR624 input channels feature a 3 band equalizer allowing you to adjust the high mid and low frequencies independently on each channel The channel s fre quency response is flat when the knobs are in the 12 00 position Rotating the knob to...

Page 9: ...he left and others to the right The MDR624 s PAN control is a Power Pan circuit which includes a 3dB dip in the center position This is desirable since there s a 3dB increase in gain when the mono input signal is heard in both the Left and Right MIX bus PEAK LED The MDR624 s MIC LINE pre amp also includes a CLIP LED which when illuminated indicates that the signal is peaking or overloading To redu...

Page 10: ...will be adjusted by the CR PHONES control knob 2TK TO MIX The 2TR TO MIX switch is used to assign the 2TR input to the MAIN mix bus If you push the 2TR TO MIX button the signal present at the 2 TRACK IN will be routed to the left and right MAIN output and the level will be controlled by the MAIN LEVEL knob 10 Controls and Functions The MDR624 s Master section includes the master level controls for...

Page 11: ...nally Auxiliary Return The MDR624 has a stereo auxiliary return which can be accessed via the pair of 1 4 inch phone jacks located on the top panel The Auxiliary Return can be used to connect any stereo line level signal but they are primarily used to connect the output of external effects processors AUX RET This adjusts the amount of signal that is com ing from the AUX RET jacks to the MAIN bus F...

Page 12: ... The LINE inputs have a nominal operating level of 40dB through 10dB TRS phone jacks Connector pin out Sleeve Ground Tip Hot Ring Cold 10 MDR624 Input and Output Connections CHANNEL 1 6 MIC and LINE INPUTS The MDR624 s channels 1 and 2 mono input channels each have a 1 4 inch connector for line level inputs and XLR connectors for the MIC inputs Channels 3 4 and 5 6 stereo input channels each have ...

Page 13: ...headphones to the PHONES jack and depending on the posi tion of the 2T TO CR switch you will hear either the 2 Track input or the MAIN mix 2TR INPUT The MDR624 features dual RCA connectors for the left and right 2 track input You can use these inputs to connect a CD Cassette Mini Disk DAT or the output from a computer sound card To listen to the input connected to the 2T IN be sure to check the po...

Page 14: ...wer up which can sometimes damage loudspeakers 4 Turn on your power amp or powered monitors and raise the level control to the manufacturers recommend ed operating level 5 Set the Main Level fader in the MDR624 s master section to the 2 o clock position 6 While speaking into the mic or playing the instrument adjust the channel Level control so that the 0 LED of the MAIN section peak level meter li...

Page 15: ...the input jacks of the recorder as shown in the dia gram to the right Connect the recorders outputs to the 2 Track in jacks as shown HF 12K 0 15 10 10 5 5 15 MF 2 5K 15 10 10 5 15 0 5 0 LF 80Hz 0 15 10 10 5 15 5 AUX 0 10 BAL 0 L R 0 LEFT RIGHT LEFT RIGHT PHANTOM POWER CLIP 12 6 0 6 12 18 24 L R 2T IN 2T OUT AUX RETURN 5 0 10 2TK TO MIX 2TK TO C R OUTPUT LEVEL LINE IN L R MIX OUTPUT R L R PHONES OU...

Page 16: ...dri ving 2 monitor speakers For inputs one micro phone is connected to channel 1 s low imped ance input and the out put of the Bass Direct Box is also connected to the Low Impedance input on Channel 2 The Keyboards as well as the Lead Guitar s signal processor s outputs are connected to the MDR624 s line inputs MDR624 s AUX SEND connected to an external monitor amp MDR624 LIVE SOUND SET UP ...

Page 17: ...END feeding a head phone mix sent to a Samson S phone headphone amp For inputs a microphone is con nected to channel 1 s low impedance input and the out put of the Bass Direct Box is also connected to the Low Impedance input on channel 2 The Keyboards as well as the Lead Guitar s signal proces sor s outputs are connected to the MDR624s line inputs MDR624 RECORDING SET UP ...

Page 18: ...ed Wiring Guide The are several ways to interface the MDR624 to support a variety of applications The MDR624 features bal anced inputs and outputs so connecting balanced and unbalanced signals is possible Balanced TRS 1 4 Connector 16 CONNECTING THE MDR624 ...

Page 19: ...tion THD N 0 05 at 4dBu 1kHz Impedances Microphone input 3 6Kohm All other inputs 10Kohm or greater Tape out 1Kohm All other outputs 120ohm Equalization Hi shelving 15dB 12kHz Mid bell 15dB 2 5kHz Low shelving 15dB 80Hz Main Mix Section Noise Bus noise Fader 0 dB channels muted 100 0dBr ref 4dBu Fader 0dB all input channels assigned and set to UNITY gain 90dBr ref 4dBu Max output 22dBu balanced AU...

Page 20: ...18 Block Diagram ...

Page 21: ...Notes 19 ...

Page 22: ...Notes 20 ...

Page 23: ......

Page 24: ...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 ...

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