Rolls Stereo Amplifier AMA2152 User Guide

MA2152 Mixer / Amplifier  
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 Micro-  
phone One for paging, and on Source Three for a jukebox, telephone,  
etc. The power output section may be connected to 4, 8, or 16 ohm  
speakers, or directly connected to a 70 volt system without the need  
for additional transformers.  
FEATURES:  
• Two Microphone inputs with phantom power  
• Tone controls for each Mic input  
• Three stereo Source inputs  
S T E R E O  
/mAplfier  
M I C 1  
S O U R C E 3  
S T E R E O  
M O N O  
• Bass and Treble controls on Sources One and Two  
• Priority ducking on Mic One and Source Three  
• Stereo pre-master level Record Output  
• Fault protected power amp  
Mxi  
• Amp will drive 25 or 70 volt lines directly  
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: + 20 dB  
Connectors:  
1: 1/4” TS  
2: XLR, 6: Stereo RCA, 3: 1/4" TRS,  
Phantom Power:  
Max Gain:  
+12 VDC  
Mic:  
60 dB  
Source: 26 dB  
+/-12 dB 100 Hz Bass  
+/-12 dB 11kHz Treble  
- 80 dB  
Tone Controls:  
Nose Floor:  
S/N Ratio:  
96 dB  
Priority Attenuation: 60 dB  
POWER AMP  
Power Output, Stereo: 100 Watts RMS/ch. 4 Ohms  
70 Watts RMS/ch. 8 Ohms  
Bridged - 200 Watts RMS  
8 Ohms/70V  
Output Matching:  
THD:  
Outputs;  
4, 8, 16 Ohms, 25V Stereo, 70V Mono  
<.08% (1kHz @ 1 Watt)  
RCA Record Out, 5-Way binding post  
Power Amp outs  
Power Bandwidth:  
Damping Factor:  
Slew Rate:  
60 Hz - 30 kHz +/- 1dB  
> 150  
100Volts/microSecond  
<10 Deg., 20Hz - 20kHz  
ASNLVER  
Phase Shift:  
UDHOC-NEP  
RSIQ  
Power:  
120 VAC 60Hz 2.5A  
230 VAC 50Hz  
Size:  
Weight:  
19” x 3.5” x 7.5”(48 x 9 x 19 cm)  
12 lbs (5.5 kg)  
ROLLS Coporation  
5968 South 350 West, Salt Lake City, UT, 84107  
(801) 263-9053 FAX (801) 263-9068  
 

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