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Hum From Speaker

1. I hear a low Hum from my speakers.
2. When I increased the volume the Hum does not increase.
3. I disconnected everything from Amp except the speakers and I still hear the Hum. Not even the interconnects were connected to the Amp. Just the Amp plugged into the wall with a cheater plug as a test.
4. All other components were disconnected from the wall.
5. I can't hear any Hum from the Amp unless I put ear right on the Amp.
6. My Amp is a Sunfire 5x200

Does not seem to be ground loop.

Any Ideas? Any Solutions?

Thanks ahead of time.
srlaser

Showing 6 responses by ghstudio

ghstudio
141 posts
 
simple answer: yes
ghstudio
141 posts
 
make sure you do all your testing within 60 days so you can file a claim against the seller if you find that what he claimed isn't true. Some EBAY sellers are known to stretch the truth or claim dumbness....although most are very honest.

If your denon was dead quiet, then the amp you bought is suspect. However, disconnect everything you can in your house or turn them off and see if any of it makes a difference.
ghstudio
141 posts
 
which is why I suggested taking it somewhere else to see if it was internal....

The caps should solve the problem. Likely only one was leaking, but you might as well replace both because the problem is age related.
ghstudio
141 posts
 
Before you waste hours and assuming you can lift that beast....take it to a friends house and see if it hums there. You either have a ground loop, something causing noise on the line, some transformer still plugged in near your amp causing interference...or you have an internal amp problem.

You've already eliminated the real easy things. Finding ground loops and noise sources can be very tedious....so first find out if your amp is OK.
ghstudio
141 posts
 
Some possible causes people forget about include light dimmers (especially halogen), lamps that you turn on by just touching them, lights that turn on automatically at dusk, small transformers plugged into the wall, florescent light fixtures or even "energy saver" light bulbs, pool pump, water heater.

Turn off every circuit breaker in your home except for the one that you have the amp plugged into...then make sure there is nothing plugged into any other outlet on that circuit...nothing.
ghstudio
141 posts
 
unfortunately, paypal and ebay will only step in to get what you paid back....and then only if you send the original product back to the seller.

If you keep the product and expect ebay and paypal to help you get the repair costs...it won't happen.

So...just pay the money to fix it and enjoy it....but don't expect anyone to pay for the repairs. Welcome to EBAY....
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