MA254
5 + 5 watt
Mixer/Amplifi er
Connection guide
Salt Lake City, Utah
04/10
• RCA Inputs for all channels, and Channel 4 -
3.5mm stereo input on the front panel.
• Volume controls for each Channel
• Low noise, effi cient operation
• Small compact size
• Class D high effi ciency amp
The MA254 is a very compact 5 + 5 watt high effi ciency amp with
a four channel stereo mixer built in. Left and Right stereo speaker
outputs. The unit is perfect for small speakers in small environ-
ments. Great for in ceiling and projector applications where small
size is needed along with class D low radiated heat locations.
WARNING:
WARNING:
THE MINIMUM SPEAKER IMPEDANCE IS 4
OHMS EACH.
IF YOU CONNECT AND USE THE MA254 WITH A LOW-
ER SPEAKER IMPEDANCE THAN LISTED ABOVE
YOU WILL DAMAGE THE UNIT AND POSSIBLY OTHER
EQUIPMENT THAT IS CONNECTED TO THE MA254.
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 3
CH 4
LEVEL
LEVEL
LEVEL
LEVEL
PS12
LEFT
RIGHT
MA254
INPUT
+
+
SPEAKER OUTPUTS
LINE
OUT
CH 2
MONO
INPUT
MUTE
MADE IN USA
0
10
0
10
0
10
0
10
www.rolls.com
-
-
AMPMIX
5 + 5 WATT MIX/AMP
CH 1
INPUT
CH 2
INPUT
CH 3
INPUT
CH4
INPUT
SPECIFICATIONS:
Line Input Impedance:
10K Ohms
Power Output:
5 Watts X 2 (4 Ohms)
Voltage Gain:
30 dB Line
Maximum Supply Voltage:
24 VDC
THD:
.05%
typical
EIN:
3
mV
Effi
ciency:
85%
Input Sensitivity:
28 mV
Bandwidth:
20Hz - 25 kHz +/- 3dB
+Size:
6.75" x 3.5" x 1.5"
Weight:
1
lb.
75889 02540
6
8
