S P E C I F I C A T I O N S
®
ARCHITECTURAL ACOUSTICS®
MMA
™
8150T
Nine-Channel
Modular Mixer
Amplifier
Input Sensitivity:
Ports 1-8: 100 mV @ 10 K ohms
PGM: 150 mV @ 10 K ohms
Bridge In/Out: 100 mV/3.3 K ohms
Preamp Out/Power Amp In
1.0 V @ 600 ohms/1.0 V @ 15 K ohms
Outputs:
Direct Out: 4 ohms
Fully Isolated XFMR: 8 ohms, 25 volts,
70 volts (100 volt, 220/240 Export)
Controls:
9 input gain controls, 1 bass control, 1
treble control, 1 contour switch, 1
master gain control, 1 power switch, 1
EQ defeat switch, 1 low-cut switch
Indicators:
Power LED (red), Activity LED (green),
SPS™ Active LED (yellow)
Protection:
Internal current limiting, SPS™
(speaker protection), output relays,
1 line fuse (external), and 2 internal
fuses
Connectors:
Preamp out/power amp in, PGM input,
bridge in/out, RCA phono jacks
Ports 1-8: Card edge connector
Outputs: Screw terminals
Mute: Screw terminals
AC SJT, 3 prong
Power Consumption:
400 W 60 Hz, 120 V AC Domestic
400 W 50/60 Hz, 220/230-240 V AC
Export
Dimensions
3.5" H x 17" W x 15.5" D
Weight & Color:
32 lbs. Gray
Other Features:
Provisions for external master volume
control
Power output disconnected for 4
seconds after power on
Level-sensing muting at modular level
FEATURES
• 9 channel mixer/power amplifier
system
• 20 - 20 kHz frequency response
• Bridging input/output
• Contour switch (special equalization)
• Bass and treble controls
• Preamp output/power amp input
patch capability
• Short circuit and thermal protection
• SPS™ protection circuitry
• External volume control
• Built-in low cut filter (switchable from
rear panel)
• Plug-in module capability
• Output impedance variations:
4 ohms, 8 ohms, 25 V and 70 V
(100 V Export)
• Rack-mountable or stand alone
package (Rack brackets are optional)
• Two mute lines
SPECIFICATIONS
Output Power:
150 watts RMS
Power Bandwidth:
Direct: 20 - 20 K < 0.5% THD
XFMR: 50 - 20 K < 0.5% THD
Frequency Response:
Direct: 20 - 20 K
±
1.0 dB
XFMR: 20 - 20 K
±
3 dB
Total Harmonic Distortion:
0.02% at 1 kHz, 145 W RMS
0.05% at 1 kHz, 150 W RMS
Output Regulation:
Direct: < 0.5 dB
XFMR: < 1.0 dB
Signal To Noise Ratio:
Master Volume Min: 95 dB
Master Volume Max: 77 dB
Power Amp Only: 95 dB
Tone Controls:
Bass:
±
10 dB @ 100 Hz
Treble:
±
10 dB @ 10 kHz
Contour:
+ 6 dB @ 100 Hz
+ 6 dB @ 10 kHz
Inputs:
Eight input ports, one dedicated
program input, bridge in/out
