Mirage Audio Players & Recorders - Recent Questions, Troubleshooting & Support
What causes motor boating with this subwoofer
Sometime an amplifier becomes a victim of feedback (or oscillation) within itself. This would normally be caused by a failed component; usually a capacitor.
On high gain amplifiers, poor wire routing can also cause feedback, or crosstalk between channels.
The amp might also have a power supply issue. The voltage regulation might not be good enough to keep the amp functioning properly. If you need further help, I’m available over the phone at
https://www.6ya.com/expert/david_29ad5d1dd86564b0
Loud buzzing sound
Amp is shot. Will need to be replaced. Not an uncommon complaint on this model.
Schematic
i have same isue humming like hell ,change 2 power supply capasitor didnt do it ,try to changer 2 mosfest transistor Samsung IRF640 N-channel MOSFET TO-220 200V 18A hope it will do it ,on ebay for a 2.00 each .
i think it is power supply isue ,recterfile circuit not clean it will give you that 60hz humming noise ,good luck
will let you know how it turn out ..
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