Adcom GFA-7807 Amplifiers

3.33/5 (3 Reviews) MSRP : $2750.00


Product Description

  • 300 watts x 7 channels into 8 ohms all channels driven
  • Power rig circuit topology
  • Balanced and Unbalanced inputs
  • Gold Plated 5 way binding post speaker terminals
  • Two huge torriodial transformers
  • Mono block power supply design for all channels
  • 156,800 micro farads of power supply capacitance
  • Power bandwidth 10 Hz –100kHz
  • 12 volt trigger on circuit
  • Dimensions (in inches) including feet and jacks 9.75 x 17 x 20.75
  • Unit weight: 119 lbs.
  • Finish – black with silver


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Reviews 1 - 3 (3 Reviews Total)

User Reviews

Overall Rating:4
Value Rating:4
Submitted by peter 1000 a Audio Enthusiast

Date Reviewed: March 13, 2011

Bottom Line:   
Only 6.6 amps on startup with an emotiva xpa2

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Used product for:   More than 1 year

Duration Product Used:   Audio Enthusiast

Product model year:   2009



Overall Rating:1
Value Rating:1
Submitted by Rohan a Audio Enthusiast

Date Reviewed: June 12, 2009

Bottom Line:   
Buy this amplifier only if you want aggravation. You will need a dedicated 20 Amp supply. That most likely means you will need electrical modifications in your home. They do not make this clear when you are purchasing. The amp is also extremely heavy and moving it is not recommended unless you are a power lifter. It sounds no better than any other good quality amplifier you can purchase for much less. It heats up quickly, and then the noisy fan cuts in making it quite annoying on quiet passages. Mine came with an annoying hum in the speakers that try as I might, I could not get rid of. Then here's the kicker, I turned it on one day and it sent a loud popping noise to my speakers and then Poof!!! It started to smoke. I have owned amps now for almost thirty years and this has never happened before. What happened to the protection circuitry? I have tried contacting Adcom. No luck, they are impossible to reach anymore!!! I have returned the amplifier to the retailer and he's had it now going on three months. He said he's still waiting on parts from Adcom. Buyer beware!!!

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Used product for:   More than 1 year

Duration Product Used:   Audio Enthusiast

Product model year:   2007



Overall Rating:5
Value Rating:5
Submitted by NUTNICK a AudioPhile

Date Reviewed: June 9, 2003

Bottom Line:   
FORGET THE REST, HAD A SUNFIRE THIS BLOWS THE SUNFIRE AWAY! NIGHT & DAY DIF'

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Used product for:   Less than 1 month

Duration Product Used:   AudioPhile

Product model year:   2003

Price Paid:    $2488.00

Purchased At:   AMERICAN THEATER




Reviews 1 - 3 (3 Reviews Total)

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