Adcom GFA-7700 User Manual
GFA-7700 Specifications
THD + Noise into 8 ohms (Typical)
20Hz
...............................................................................................................
0.006%
1kHz
...............................................................................................................
0.006%
10kHz
...............................................................................................................
0.02%
20kHz
...............................................................................................................
0.04%
Frequency Response @ 1 Watt into 8 ohms (10Hz to 20kHz)
..................................
+0, -0.25dB
Power Bandwidth (-3dB)
..............................................................................
1.5Hz to 100kHz
Power Rating (EIA/CEA-490-A)
185 Watts continuous power into 8 ohms at 1kHz at less than 1.0% THD + N
IM Distortion (SMPTE)
1 watt into 8 ohms
..........................................................................................
≤ 0.05%
IM Distortion (CCIF, Any Combination from 4kHz to 20kHz)
8 ohms
..........................................................................................................
≤ 0.01%
Dynamic Headroom
..................................................................................................
1.9 dB
Signal to Noise Ratio, “A” Weighted
........................................................................
≥ 115dB
Gain
.........................................................................................................................
29dB
Input Sensitivity
for 1 Watt
.....................................................................................................
0.1 volts
for 150 Watts
...............................................................................................
1.14 volts
Input Impedance
.......................................................................................................
50kΩ
Damping Factor (20Hz to 20kHz)
................................................................................
≥ 800
Rise Time (5kHz, 90V, peak-to-peak square wave, 20% to 80%)
......................................
2.7μS
Power Consumption (Continuous, All Channels Driven)
Quiescent
...........................................................................................................
80VA
Maximum
........................................................................................................
1440VA
150 watts into 8 ohms
.......................................................................................
1375VA
Power (Available in 230VAC on special order)
..............................................
115VAC - 50/60Hz
Chassis Dimensions
.........................................
7
1
/
4
” (184.15mm) x 17” (432mm) x 15” (381mm)
Maximum Dimensions
................................
67/8” (174.625mm) x 17” (432mm) x 14” (355.6mm)
Weight
.......................................................................................................
56 lb. (25.4 kg)
Weight, Packed
...........................................................................................
64 lb. (29.1 kg)
15