Brochure

The new MA252 is a compact class D
stereo amplier with a 4 CH. stereo mixer
built in. It has 20 watts per channel @ 4
Ohms. The class D low heat design gives
the MA252 the ability to be mounted in
very tight applications. It will work great in
ceilings by projectors, or anywhere small
and heat free amplication is required. The
MA252 is in an all metal chassis and
weighs 1 pound. Overall dimension are
6.75” X 3.5” X 1.5”. Bottom mounts are
provided for permanent installations. The
MA252 has an included 24 VDC external
power supply. The 4 channel mixer section
consists of 2 separate RCA stereo inputs,
along with an XLR mic input and a 3.5mm
(1/8”) stereo input perfect for an ipod or
laptop computer type input. Phantom
power is supplied to the XLR input by a
switch on the back of the MA252.
ROLLS
ROLLS
MIXER - AMP
MIXER - AMP
20 + 20 Watts
20 + 20 Watts
ROLLS
5968 SOUTH 350 WEST S.L.C.,UT 84107
PHONE: 8012639053
FAX: 8012369068
MA252
DATA SHEET FOR MA252 www.rolls.com
INSTALLATION MIX - AMPLIFIER
STEREO INPUTS AND OUTPUTS
SPECIFICATIONS
Line Input Impedance: 10K Ohms line
600 Ohms mic
Power Output:
Voltage Gain: 55 dB mic
30 dB line
Maximum Supply Voltage: 24 VDC
THD: .05% typical
Effi ciency: 85%
Bandwidth: 20Hz - 25 kHz
Size: 6.75" x 3.5" x 1.5"
Weight: 1 lb.
20 + 20 WATT MIXER - AMPLIFIER
MADE IN USA
Included - 24
VDC ROLLS
PS24 external
power supply
20 watts X 2 @ 4 Ohms.
CH 4
CH 1
CH 2
CH 3CH 4
LEVEL
LEVEL
LEVEL
LEVEL
PS12
CLASS AMP
5 + 5 WATT MIX/AMP
LEFT
RIGHT
MA251
3.5mm
STEREO
+
+
-
-
BOTH OUTPUTS MUST BE USED
PHANTOM
CH 1
INPUT
CH 2
INPUT
CH 3
INPUT
POWER
LINE
OUT
ON - OFF
CH 2
MONO
INPUT
MUTE R
R
R
L
L
L
CH 4
CH 3CH 4
LEVEL
LEVEL
RIGHT
3.5mm
STEREO
+
CH 3
INPUT
LINE
OUT
CH 2
MONO
INPUT
MUTE
R
R
R
L
L
L
CH 4
CH 3CH 4
LEVEL
LEVEL
RIGHT
INPUT
+
CH 3
INPUT
LINE
OUT
CH 2
MONO
INPUT
MUTE
010
010
-
Size: 6.75” X 3.5” X 1.5”
75889 02520
06
CH 4
CH 1
CH 2
CH 3
CH 4
LEVEL
LEVEL
LEVEL
LEVEL
PS12
CLASS AMP
5 + 5 WATT MIX/AMP
LEFT
RIGHT
MA251
3.5mm
STEREO
+
+
-
-
BOTH OUTPUTS MUST BE USED
PHANTOM
CH 1
INPUT
CH 2
INPUT
CH 3
INPUT
POWER
LINE
OUT
ON - OFF
CH 2
MONO
INPUT
MUTE R
R
R
L
L
L
CH 4
CH 1
CH 2
CH 3CH 4
LEVEL
LEVEL
LEVEL
LEVEL
LEFT
RIGHT
INPUT
+
+
SPEAKER OUTPUTS
PHANTOM
CH 1
INPUT
CH 2
INPUT
CH 3
INPUT
POWER
LINE
OUT
OFF - ON
CH 2
MONO
INPUT
MUTE
010
010
010
010
-
-
PS24
HI CLASS AMP
20 + 20 WATT MIX/AMP
MA252
MADE IN USA
www.rolls.com