Gfa-7300 specifications – Adcom GFA-7300 User Manual
Page 18
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Power Rating (To FTC Requirements)
60 watts continuous average power into
8
ohms at any frequency between 20Hz to 20kHz with all channels driven at less
than 0.075% THD
90 watts continuous average power into 4 ohms at any frequency between 20Hz to 20kHz with all channels driven at less
than 0.075% THD
IM Distortion (SMPTE)
1 watt to 60 watts into
8
ohms..................................................................................................................................................................<0 07%
1 watt to 90 watts into 4 ohms..................................................................................................................................................................< 0.07%
IM Distortion (CCIF, Any Combination from 4kHz to 20kHz)
60 watts into
8
ohms.................................................................................................................................................................................. <0 025%
90 watts into 4 ohms............................................................................................................................................................................... < 0.025%
THD + Noise at 60 watts into
8
ohms (Typical)
20Hz........................................................................................................................................................................................................... 0.0075%
1kHz.................................................................................................................................................................................................................. 0.007%
10kHz.......................................................................................................................................................................................................... 0.015%
20kHz................................................................................................................................................................................................................. 0 025%
THD + Noise at 90 watts into 4 ohms (Typical)
20Hz.................................................................................................................................................................................................................. 0.015%
1kHz...................................................................................................................................................................................................................0.010%
10kHz.............................................................................................................................................................................................................................
0
022%
20kHz............................................................................................................................................................................................................................. 0 035%
Frequency Response @ 1 Watt into
8
ohms (10Hz to 20kHz)................................................................................................................. +0, -0 25dB
Power Bandwidth (-3dB)...........................................................................................................................................................................1.5Hz to 100kHz
Dynamic Headroom into 4 ohms................................................................................................................................................................................ 1.9 dB
Signal to Noise Ratio, “A” Weighted (60 watts into
8
ohms)....................................................................................................................... > 115dB
Gain................................................................................................................................................................................................................................. 29dB
Input Sensitivity
for 1 Watt........................................................................................................................................................................................................ 0 1 volts
for 60 Watts................................................................................................................................................................................................... 1.14 volts
Input Impedance............................................................................................................................................................................................................... 50kQ
Damping Factor (20Hz to 20kHz).......................................................................................................................................................................... > 800
Rise Time (5kHz, 90V, peak-to-peak square wave, 20% to 80%)..........................................................................................................................2 7pS
Power Consumption (Continuous, Aii Channeis Driven)
Quiescent............................................................................................................................................................................................................ 80VA
Maximum.......................................................................................................................................................................................................... 960VA
60 watts into
8
ohms...................................................................................................................................................................................... 840VA
Power (Available in 230VAC on special order)............................................................................................................................. 115VAC - 50/60Hz
Chassis Dimensions........................................................................................................................
4
V
4
” (118mm) x 17" (432mm) x 14” (355
6
mm)
Maximum Dimensions.................................................................................................................... 5” (127mm) x 17" (432mm) x 14%” (375mm)
Weight.............................................................................................................................................................................................................. 351b. (15 9 kg)
Weight, Packed.............................................................................................................................................................................................. 40 lb. (18.2 kg)
All specifications are subject to change or improvement without notice. Dimensions and weights listed are approximate, actual
product may vary slightly.
GFA-7300 SPECIFICATIONS
18