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Applications, Using the mpl 1204 as a recording mixer, Applications notes 25 – Samson MPL 1204 User Manual

Page 25: Using the mpl 1204 as a recording mixer 25

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25

Applications

Here are four suggested applications for the MPL 1204; bear in mind that your particular circumstance may dictate
changes in these suggested signal connections and routings.

Application 1 - Using The MPL 1204 As A Recording Mixer

The MPL 1204 is optimized for use as a recording mixer with multitrack digital or analog recorders. As shown in the
illustration below, microphones and line level signals are connected to various channel inputs. Signal processors are
connected to Aux sends and returns and to channel inserts as required, with Aux send 1 (which is pre-fader) driving a
headphone amplifier for cue mixes. The Control Room outputs are connected to a power amplifier driving studio
monitors. The Main outputs are connected to the inputs of a two-track or DAT recorder, with the outputs of the two-track
or DAT recorder connected to the MPL 1204 tape inputs. The four Bus outputs are connected to the inputs of a
multitrack recorder, with the multitrack outputs connected to four MPL 1204 channel line inputs. During mixdown, those
channels carrying the multitrack outputs are routed to bus 1/2 (via their channel “Mute 3/4” switches), with buses 1 and 2
routed to the Main L/R outputs (by pressing in their Bus “L/R” switches). To listen back to the mix, the channels carrying
the two-track outputs (channels 11 and 12) are routed to bus 3/4 (via their channel “Mute 3/4” switch); then connect
buses 3 and 4 to the Control Room outputs by pressing in their Bus “L/R” switches.

CASSETTE or DAT

+15db

0

-15db

0

+15db

-15db

-15db

+15db

0

+15db

-15db

0

SAMSON

SIGNAL PROCESSOR

SIGNAL PROCESSOR

SERVO - 240

SAMSON

L

R

MIDI KEYBOARD

L

R

DRUM MACHINE

MIDI TONE GENERATOR

L

R

MULTITRACK

Ring

Tip

MPL 1204 12 CHANNEL MIC MIXER

1/2

3/4

1

AUX RETURNS

STEREO INPUTS

UNBALANCED 10K

+4dBu

S / N

AVIS;

RISQUE DE CHOC ELECTRIQUE

NE PAS OUVRIR

DO NOT EXPOSE THIS EQUIPMENT

TO RAIN OR MOISTURE.

ON

OFF

~AC INPUT

115V/230V

50/60Hz, 25W

SAMSON

TRS

STEREO INPUT

TIP = LEFT
RING = RIGHT
SLEEVE = COM

TRS

BALANCED

TIP = HI
RING = LO
SLEEVE = COM

TRS INSERT

UNBALANCED

TIP = RETURN
RING = SEND
SLEEVE = COM

XLR

BALANCED

3 = LO
2 = HI
1 = COM

FUSE

1A/250V[115V]

0.5A/250V[230V]

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

!

115V/230 - 50/60 Hz 25W

POWER

RATING

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

2

AUX SENDS

UNBALANCED <75

+4dBu

TAPE IN

UNBALANCED

10K

-10dBu

12

11

10

9

8

7

6

5

4

3

2

1

12

12

11

11

10

10

9

9

8

8

7

7

6

6

5

5

4

4

1

1

2

2

3

3

MICROPHONE INPUTS BALANCED +4dBu TO -50dBu

LINE INPUTS BALANCED +24dBu TO -30dBu

CHANNEL INSERTS TIP RETURN -RING SEND -SLEEVE GND

BUS INSERTS

UNBALANCED 75

+4dBu

MIXER LINKING

4

1

2

3

BUS OUTPUTS

UNBALANCED 75

+4dBu

4

1

2

3

CONTROL ROOM

BALANCED <75

+4dBu

RIGHT

LEFT

1

2

3

1

2

3

MAIN

BALANCED <75

+4dBu

POWER

L/11

R/12

RIGHT

LEFT

HEADPHONE AMP