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Hum from line conditioner?

I have isolated a hum from both speakers to my line conditioner. Does the AudioPrism Foundation III have any internal parts that can fail?

Two other causes maybe? The line conditioner power cable causing interference or, the LC positioned too close to one of my amps, 8"...

A cheap Costco surge protector I have swapped is dead silent!

Any thoughts?
gelmhirst
rwwear
2,883 posts
 
It probably has a noisy transformer that needs to be replaced.
gelmhirst OP
64 posts
 
Rwwear, thanks...that makes sense having read in the past about 'hums' etc....how would I check that, the acceptable specs, pass/fail etc?
gelmhirst OP
64 posts
 
FYI for those interested...an electrician friend/collegue came over. He has determined my issue is a ground loop problem and recommends a dedicated line/circuit to rectify issue. I'm glad it was not the PC or the amps.
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