Question about Onkyo M-501 Amplifier
I took this into an entirely defernet system. Different Pre-Amp, differnt interconnects, different speakers, different CD Player. It does the same thing. Took it to a repair place and they said it is fine. I brought in and tested it again in both entirely different systems. Still does the crackling, static in one channel. Seems to be the left channel. Any ideas? I will take it back to the repair shop and it would be nice if I gave them some direction as they did not fix it the first time! Thanks, Ken.
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Onkyo Subwoofer Pre Out Problem
May not necessarily be the out put, discontect the sub from the receiver and see if it still makes a hum, Making sure that you turn auto on, off on the sub woffer.
If it still makes a hum, then you have a earthing problem, you can get a earth filter put on your internal wiring in your home, or you can remove the earth pin on your sub woffer
Posted on Dec 13, 2007
The surround processing portion of the unit has a problem. In either stereo or direct mode, the digital procesing is bypassed. This could be just the surround processing IC, but that IC may not be available as a separate part. I would suggest that you bring this unit to an authorized Onkyo service center for an estimate.
Posted on Mar 18, 2009
A+B speakers = 4 channels 2 right 2 left
100 watts/4 = 25 watts per channel
RMS watts / channel = 25 x .707 = 18 watts/channel which is your average consumer stereo system
I would use 8 or 16 ohm speakers (not 4 ohm) -- almost any set of stereo speakers will "work" -- these will be 8 ohm and about 5 watt minimum / 40 watt max thereabouts
Posted on May 07, 2009
This is cycle hum place offending units away from each other or, isolate the power supplies and, re- check electrical circuit grounds
Posted on Jun 01, 2009
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