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Commercial Audio Series Mixer-Amplifiers
page 15
Operation Manual
4 Specifications
Minimum Guaranteed Power 180MA 280MA 1160MA
120 VAC, 60 Hz Units, per channel, all channels driven
1 kHz with 0.5% THD
Minimum guaranteed power per channel into 4 ohms or 70V/100V output 80W 80W 160W
Performance 180MA 280MA 1160MA
Number of input channels 4 8 4
Number of power amplifiers 1 2 1
Input Sensitivity (volts RMS) for full output at maximum gain
Balanced mic inputs
Balanced line inputs
RCA connectors
3 mV
800 mV
400 mV
3 mV
800 mV
400 mV
3 mV
800 mV
400 mV
Frequency Response (at 1 watt from 4-ohm tap, 70 Hz - 19 kHz) ± 1 dB ± 1 dB ± 1 dB
Frequency Response (at line out, 20 Hz to 20 kHz) ± 1 dB ± 1 dB ± 1 dB
Power Bandwidth (at 4-ohm tap, 2 dB below maximum 1 kHz power) 50 Hz to 20 kHz with < 0.5% THD 50 Hz to 20 kHz with < 0.5% THD 50 Hz to 20 kHz with < 0.5% THD
Signal to Noise Ratio (ref. to rated power, master volume at minimum) 85 dB 85 dB 85 dB
Total Harmonic Distortion (THD) at rated power at 1 kHz < 0.5% < 0.5% < 0.5%
DC Output Offset < ± 5 mV < ± 5 mV < ± 5 mV
Input Impedance (nominal) Mic: 400 ohms, Line: 100 kilohms,
RCA: 50 kilohms
Mic: 400 ohms, Line: 100 kilohms,
RCA: 50 kilohms
Mic: 400 ohms, Line: 100 kilohms,
RCA: 50 kilohms
Crosstalk (all controls at “10”) –70 dB at 1 kHz –70 dB at 1 kHz –70 dB at 1 kHz
Line Output Level (nominal) 1V into 10 kilohms 1V into 10 kilohms 1V into 10 kilohms
Phantom Power 15 VDC 15 VDC 15 VDC
AC Line Voltages Available 100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
100V 50/60 Hz
120V 60 Hz
220V 50/60 Hz
230V 50/60 Hz
240V 50/60 Hz
Operating Temperature/Humidity
0
o
C to 40
o
C at 95% relative humidity
(non-condensing)
0
o
C to 40
o
C at 95% relative humidity
(non-condensing)
0
o
C to 40
o
C at 95% relative humidity
(non-condensing)
Storage Temperature
–20
o
C to 85
o
C–20
o
C to 85
o
C–20
o
C to 85
o
C
Construction 180MA 280MA 1160MA
Cooling Convection cooled Convection cooled Convection cooled
Dimensions: Width, Height, Depth (behind mounting surface) EIA Standard 19" W (EIA RS-310-B)
x 3.5" (8.9 cm) H x14" (35.6cm) D
EIA Standard 19" W (EIA RS-310-B)
x 3.5" (8.9 cm) H x14" (35.6cm) D
EIA Standard 19" W (EIA RS-310-B)
x 3.5" (8.9 cm) H x14" (35.6cm) D
Net Weight, Shipping Weight 21.0 lb. (9.5 kg), 26.0 lb. (11.8 kg) 25.3 lb. (11.5 kg), 30.3 lb. (13.7 kg) 25.3 lb. (11.5 kg), 30.3 lb. (13.7 kg)