Adcom GFA-7700Specifications, THD + Noise into 8 ohms Typical, Power Rating EIA/CEA-490-A

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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

71/

” (184.15mm) x 17” (432mm) x 15” (381mm)

 

4

 

 

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)

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Contents GFA-7700 High Current 5-Channel Power AmplifierPage Troubleshooting GFA-7700FeaturesTable of Contents Installation & HookupADCOM Protection Plan USA ONLY IntroductionOutputs DB-25Multichannel Audio Input ConnectorDescription of Unit Rear Panel InputsAC Power Cord 12VDC Triggering 4aAC Fuse 4b Power LED Front Panel On/Off SwitchThermal Protection LEDs Distortion Alert LEDsQuick Connections Installation & HookupPlacement of the GFA-7700 Unpacking the GFA-7700They are as follows Connecting the GFA-7700RS - Right Surround LS - Left Surround RF - Right Front C - Center LF - Left FrontOutputs InputsCARING FOR YOUR GFA-7700 Resolving Problems TroubleshootingServicing THD + Noise into 8 ohms Typical GFA-7700SpecificationsPower Rating EIA/CEA-490-A Power Consumption Continuous, All Channels Drivengfa7700 manual Voice