Question about Adcom GFA-5400 2-Channel Amplifier

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I just purchased a GFA 5400 Amp and only 1 channel is working - Seller claims it worked when he Shipped. Is there a way to test the channel that doesn't work? Right Channel works Great!

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  • 49 Answers

Can I assume that you have input signals going to both channels and that you have SWITCHED the cables to make sure that both cables going to the power amp are actually sending signals to it?
That will rule out any cable / pre-amp problems.
After you have done that test, let me know.

Posted on Oct 28, 2009

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Feb 23, 2011 | Adcom GFA-7500 5-Channel Amplifier

1 Answer

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Hi...

I've contacted ADCOM before and they sent a pdf of the electricals

http://www.adcom.com/default.aspx

also try:

www.stereomanuals.com

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Sep 14, 2009 | Adcom GFA-5400 2-Channel Amplifier

1 Answer

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This amp is not designed to be bridged and can not be used in the mode you wish. Sorry, but internal circuit changes would be necesary for the amp to work as a single channel.

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1 Answer

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If there's hum with just the Adcom..then it's the ADCOM

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