It's shielded to gnd one side then
Looks like at least 2 amps will need looking at then so
Ground Loop Hum
Re: Ground Loop Hum
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
Re: Ground Loop Hum
Strange thing is I've had the earths disconnected for at leas 20 years with no problems at all. It was just a casual browsing the internet when I came across an article on hifi equipment and one definite thing that came out it was ''not to disconnect the earth wire in a plug to solve a ground loop.
And here's the big thing about it, it mentioned that if there was a problem with the amplifier a person could get an electric shock or worse!
It got me thinking well it has worked fine for me all these years but if a fault did occur, jeepers I might not live to tell the tale.
I am going to look at the ground/signal/earthing arrangement in the power amps tomorrow.
And here's the big thing about it, it mentioned that if there was a problem with the amplifier a person could get an electric shock or worse!
It got me thinking well it has worked fine for me all these years but if a fault did occur, jeepers I might not live to tell the tale.
I am going to look at the ground/signal/earthing arrangement in the power amps tomorrow.
Re: Ground Loop Hum
Take some photos
Will give better perspective
Will give better perspective
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
Re: Ground Loop Hum
Just opened one of the power amps and here is a pic of the earth wire coming in on the left and connected top left.
Re: Ground Loop Hum
have you any more pics including a zoomed out pic
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
Re: Ground Loop Hum
looks like mains earth is crudely connected to ground, but would like more pics if thats possible
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
Re: Ground Loop Hum
probably picture of all of it, or 2-3 pics of each section of it
i think star gnd is bolted direct to case, which would easily explain your issues
and after checking none of that stuff is still live and you have a multimeter check for continuity or resistance between mains gnd and star gnd
sd card player, modded soekris dac, class a lifepo4 amp or gb class a/b amp, diy open baffle speakers based on project audio mundorf trio 10's
Re: Ground Loop Hum
Here you go...
Will send a couple more...
Will send a couple more...
