Adcom GFA-7500

Amp is in EXCELLENT condition. Five symmetrical THX certified channels of legendary Adcom sound.  
This amp would be at home in any high-end home theater system, and is entirely under rated for use in 2-Channel listening setups. The ability to Bi-Amp speakers with 150w of ultra clean power per driver, and the sound that this configuration will produce cannot be overstated.

Specifications below:

Power Rating (To FTC
Requirements)
150 watts per channel continuous average power into 8 ohms

225 watts per channel continuous average power into 4 ohms

Any frequency with all channels driven at less than 0.075% THD 

IM Distortion (SMPTE)

l watt to l50 watts into 8 ohms.......<0.05%

1 watt to 225 watts into 4 ohms.....<0.05%

IM Distortion (CCIF, Any Combination from 4kHz to
20kHz)

150 watts into 8 ohms.....<0.01%

225 watts into 4 ohms.....<0.01%

THD + Noise at 150 watts into 8 ohms (Typical)


20Hz.........0.006%

1 kHz........0.006%

10 kHz......0.02%

20 kHz......0.04%

THD + Noise at 225 watts into 4 ohms (Typical)


20 Hz........0.01%

1khz..........0.01%

10 kHz......0.035%

20 kHz......0.065%

Frequency Response at 1 watt into 8 ohms (10Hz to
20kHz)

...........+ 0, - 0.25dB

Power Bandwidth (-3dB)

...........1.5Hz to 100kHz 

Dynamic Headroom Into 4 ohms

...........1.9dB

Signal to Noise Ratio, "A" Weighted (150
watts into 8 ohms) 

...........> 115B

Gain

.......29dB 

Input
Sensitivity

      for 1 Watt output..........0.1 volts


      for 150 Watts output....1.14 volts

Input Impedance

.........50K ohms

Damping Factor ( 20Hz to 20kHz )

........>800

Rise Time (5kHz, 90 V,  peak-to-peak square
wave, 20% to 80%)

........2.7 microseconds (uS)

Power Consumption (Continuous, All
Channels Driven)

.....Quiescent.....80VA

.....Maximum.....1440VA

.....150 watts into 8 ohms.....1375VA

General Power (Available in 230VAC
by special order)

.....115VAC - 50/60Hz 

Chassis Dimensions

.....7.25" x 17" x 15"

(184.15mm) x (432mm) x (381mm)

Maximum Dimensions

.....6.875" x 17" x 14"

(174.625mm) x (432mm) x (355.6mm)

Weight

.....56  lbs. ( 25.4 kg )

Weight Packed

.....64 lbs. ( 29.1 kg )