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ARCHITECT’S & ENGINEER’S 

SPECIFICATION

The mixer shall be 12 in/2 out and shall incorporate 6

monophonic and 3 stereo line input channels, including 6
microphone channels. Microphone inputs shall be on XLR-
type connectors,  monophonic line inputs shall be on bal-
anced 1/4

Tip-Ring-Sleeve phone connectors, and stereo

line inputs shall be on 1/4

phone connectors. An inde-

pendent stereo line-level CD/tape input (routed to chan-
nels 11-12) shall be on phono connectors. Each channel
shall have 2 Aux sends, 2-band equalization and a level
control. In addition, monophonic channels shall have a
stereo panpot and stereo channels shall have a left/right
balance control. Microphone inputs (on channels 1-6)
shall have an input trim control.

The mixer shall provide main outputs on balanced

1/4

Tip-Ring-Sleeve phone connectors, effects outputs on

1/4

phone connectors, and a headphone output on a

1/4

Tip-Ring-Sleeve phone connector. 2 stereo effects

returns shall be provided on 1/4

phone connectors, and

each shall have an independent level control. The mixer
shall be powered either from provided mains adapter or
from optional battery pack. The unit shall be of an ultra-
compact type.

The mixer shall have residual noise of 95 dB, THD

less than 0.01%, and frequency response of ±3 dB from 10
Hz to 50 kHz. Dimensions shall be 12.8

(324 mm) wide,

9

(228 mm) deep and 2.3

(58 mm) high. Weight shall be

6.5 lb. (2.9 kg). The mixer shall carry a three-year warran-
ty.

The mixer shall be a SAMSON MIXPAD 12.

PEAK

DETECTOR

PEAK

DETECTOR

R

T

S

R

T

S

R

T

S

R

T

S

R

T
S

AUX 1

UNBALANCED

Zout = .1k

+4dbu

AUX 2

UNBALANCED

Zout = .1k

+4dbu

MAIN L

BALANCED

Zout = .1k

+4dbu

MAIN R

BALANCED

Zout = .1k

+4dbu

PHONES

UNBALANCED

Zout = .15k

150mW

+10dB

-10db

+10db

HEADPHONE

+4db

+4db

-10dbu

-10dbu

-10db

-10db

0dbu

0dbu

0db

0db

+14db

+14db

AUX 1

AUX 2

LEFT

RIGHT

R

I

G
H
T

L
E
F
T

A
U
X

2

A
U
X

1

R

I

G
H
T

L
E
F
T

A
U
X

1

A
U
X

1

-10dbu

-10dbu

-10dbu

-10dbu

0dbu

0dbu

0dbu

0dbu

AUX 1

-10db

AUX 2

-10db

PAN

-3db

mid

PRE/POST

+10db

0dbu

-10dbu

-10db

Level

LOW

HIGH

0dbu

2 BAND EQ

+/-15db

(NON-INV)

0dbu

PAD

-20db

+30db

MIC PRE

(LINE)

+42VDC

MIC INPUT

BALANCED

XLR

Zin = 1k5

LINE INPUT
BALANCED

TRS

Zin = 10k

2

3

1

R
RN
TN

T

S

CHANNELS 1-6

MONO TYPES

MAIN

PRE/POST

AUX 1

AUX 2

BAL

-10db

-10db

0db
mid

0dbu

+10db

-10dbu

-10db

-10dbu

-10db

Level

0dbu

+10db

2 BAND EQ

+/-15db

(NON-INV)

2 BAND EQ

+/-15db

(NON-INV)

0dbu

0dbu

0dbu

LOW

HIGH

LOW

HIGH

0dbu

AUX 3

AUX 4

TN

T

S

LINE INPUT

UNBALANCED

TS

Zin = 10k

(ODD)

TN

T

S

LINE INPUT

UNBALANCED

TS

Zin = 10k

(EVEN)

CHANNELS 7-12
STEREO TYPES

TAPE IN

AUX RETURNS 1-4

STEREO TYPES

AUX RTN 1/2

UNBALANCED

TRS

Zin = 10k

R
RN
TN

T

S

AUX RTN 1/2

-10db

-10db

(PARALLEL TO 8-9)

L

R

MIXPAD 12 SPECIFICATIONS

CHANNEL SECTION

Total harmonic distortion (with 30 kHz LPF):

< 0.01%

Residual noise (with 30 kHz LPF, VR min):

L/R main:

95 dB

Aux send 1/2

85 dB

Frequency response (±3 dB):

10 Hz to 50 kHz

Maximum voltage gain:

Mic to main:

74 dB

Line to main (mono ch):

54 dB

Line/Tape to main (stereo ch):

34 dB

Aux return to main:

20 dB

Crosstalk (1 kHz):

Channel vs. channel:

70 dB

Input vs. output:

75 dB

EIN (“A” filter on, input shorted):

Mic:

-128 dB

Line:

-111 dB

Maximum input level (1 kHz, ± 3dB):

Mic input (mono ch):

+22 dBu

Line input (stereo ch):

+7 dBu

Headphone output level (600 

loaded):

100 mW

Peak LED sensitivity (before clipping):

3 dB± 2 dB

EQUALIZATION

10 kHz High (shelving):

±15 dB

100 Hz Low (shelving):

±15 dB

GENERAL

Dimensions:

324 mm (w) x 228 mm (d) x 58 mm (h)

12.8

(w) x 9

(d) x 2.3

(h)

Weight:

6.5 lb. / 2.9 kg.

Specifications subject to change without notice. © 1998 SAMSON

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