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The MA2152 is a two-rack space mixer amplifier designed for 
restaurants, schools, churches, clubs etc. The unit provides a 
compact and efficient way to mix up to three sources such as 
AM/FM tuners, CD players, and video players with up to two 
microphones. Priority talkover is provided on Microphone One 
for paging, and on Source Three for a jukebox, telephone, etc. 

FEATURES:

• Two XLR Microphone Inputs
• Tone controls for each Mic Input
• Individually switchable phantom power
• Three Stereo Source Inputs, 
    Four RCA and one front panel stereo 3.5mm
• Bass and Treble controls for Source Inputs One and Two
• Talkover function for Mic One
• Direct Power amplifier insert
• Fault Protection circuitry

SPECIFICATIONS

MIXER

Input Impedance:  

Mic:  

 600 Ohms XLR balanced

    Source: 

 22K Ohms RCA

 

 

 

 

Insert:    22K Ohms 1/4” TS unbal.

Max Input Level:   

Mic: 

 -14 dBV Mic level Max

    Source: 

 

24 

dBV

    Insert: 

 

24 

dBV

Connectors: 

 

 

2: XLR, 8: Stereo RCA, 3: 1/4” TRS, 

    1: 

Stereo 

3.5 

mm

    4: 

Binding 

posts 

Phantom 

Power: 

  +12 

VDC

Max 

Gain:   Mic: 

60 

dBV

    Source: 

26 

dBV

Tone Controls: 

 

 

+/-12 dB 100 Hz Bass

    +/-12 

dB 

11kHz 

Treble

Noise Floor: 

 

 

Speaker out: -67 dBV

    Pre 

Out: 

-90 

dBV

S/N Ratio:  

 

 

96 dBV

Priority Attenuation: 

 

60 dBV

POWER AMP

Power Output,   Stereo:   

100 Watts RMS/Ch. 4 Ohms (Both 

channels driven)

    70 

Watts 

RMS/Ch. 

Ohms

 

 

Bridged:  

200 Watts RMS - 8 Ohms/70V

Output Matching:  

 

4, 8, 16 Ohms, 25V Stereo, 70V Mono

THD: 

 

 

 

<.08%, (1 kHz @ 1 Watt)

Outputs:  

 

 

RCA Record Out, 5-Way binding post 

    Power 

Amp 

Outputs

Power Bandwidth: 

 

60 Hz - 30 kHz, +/- 1 dB

Damping 

Factor: 

  > 

150

Slew 

Rate: 

  100 

Volts/microSecond

Phase Shift: 

 

 

<10 Deg., 20 Hz - 20 kHz

Power:   

 

 

120 VAC, 60 Hz 2.5A

Size: 

 

 

 

19” x 3.5” x 7.5” (48 x 9 x 19 cm)

Weight: 

   12 

lbs 

(5.5 

kg)

ROLLS Coporation

5968 South 350 West, Salt Lake City, UT, 84107

(801) 263-9053  FAX (801) 263-9068

[email protected] • www.rolls.com

MA2152

Mixer/Amplifier

MA2152

 Mixer / Amplifier

MIC

ONE

MIC

TWO

SOURCE

ONE

SOURCE

TWO

SOURCE

THREE

BAS

S

TREBLE

0            10

LEF

T OUTPUT

tone

tone

-             +

-             +

0           10

0           10

0           10

0           10

0           10

IN

3

W

A

RNING: 

DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE

NO USER SERVICABLE P

ARTS INSIDE.

MODEL MA2152

MADE IN USA

www

.rolls.com

SERIAL NUMBER

2152 -

 RISQUE DE CHOC - NE P

AS ENLEVER

BRIDGE

MONO

BRIDGE

OUTPUT

70 VOL

T

4 - 8 Ohm /

25 V

olt

4 - 8 Ohm /

25 V

olt

RIGHTR

IG

H

T

LEF

T

L

E

F

T

1

2

3

RECORD

OUTPUT

MIC

ONE

MIC

TWO

SOURCE INPUTS

LEF

T AMP

INSERT

RIGHT AMP

INSERT

SOURCE 3

STEREO 
MIC 1

on

STEREO

MONO

STEREO

120V

AC  50/60Hz  300V

A

4A

 Fuse 120V

; 2A

 Fuse 220V

◗ 

PHAN POWER

◗ 

SOURCE 3 MONO

 PRIORITY

  

ON / OFF

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