dks5276 Posted January 28, 2016 Share Posted January 28, 2016 I read that most Onkyo have a floating ground and that its recommended to run a ground wire from back of Receiver Plate to outlet or other ground. I have a humming in my sub and sub only, a ground loop isolator worked ok but can still hear it, I took apart receiver and there are no bad capacitors....Im stuck Quote Link to comment Share on other sites More sharing options...
Fish Posted January 28, 2016 Share Posted January 28, 2016 I have grounded and lifted as test, but there is an underlying issue that needs addressed. Quote Link to comment Share on other sites More sharing options...
teaman Posted January 28, 2016 Share Posted January 28, 2016 One night when my receiver came in two hours past curfew and I was pretty upset so I grounded it for three days. Okay, seriously now....no I have never grounded my receivers. 7 Quote Link to comment Share on other sites More sharing options...
japosey Posted January 28, 2016 Share Posted January 28, 2016 One night when my receiver came in two hours past curfew and I was pretty upset so I grounded it for three days. Okay, seriously now....no I have never grounded my receivers. That was hilarious! Quote Link to comment Share on other sites More sharing options...
dks5276 Posted January 30, 2016 Author Share Posted January 30, 2016 does anyone have an idea on what it could be, i checked all my caps and none are bad.... Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted January 30, 2016 Share Posted January 30, 2016 Use a Y connector in the R/L sub input. It may help. Is the hum made louder by turning up the avr? Is the hum there with the sub disconnected or turned off? Quote Link to comment Share on other sites More sharing options...
dks5276 Posted January 30, 2016 Author Share Posted January 30, 2016 Should i use my preout for sub? Also it got a lil louder when i turned up avr, and it seemed to hum when avr was on standby, i used a y rca connector for a second sub with my new receiver and that created a hum so i wonder if this old house im in has bad grounds, one sub doesnt hum with new avr Quote Link to comment Share on other sites More sharing options...
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