Marantz 2275 ~ Right Channel Problem

basicblues

Well-Known Member
Marantz 2275, which has been one of my most used (in my insulated garage) receivers for the last several months appears to developing or has a problem.

I am always hooking up different speakers, so my first thought was there's something wrong with the speaker(s), but after 3 or 4 different pairs over several weeks it appears the speakers are not the problem.

The problem itself (as usual) is hard to put into writing words but when the receiver is powered on, the unit works, and produces good sound from both channels but (only) sometimes the woofer in the right channel flexes in and out at what looks like full range motion. The sound is still coming though the speaker while this takes place but you can also hear a low frequency hum. UFO landing? Turn the unit off, then right back on, the problem is gone and the unit works flawlessly for hours. Now it seems that the receiver doesn't readily quit this annoyance on demand and it's inevitable that at some point it won't.

Suggestions or Comments?
 
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