I'm looking for an RCA ground loop isolator locally

[oj88]

-how did you check the grounding? you can use a dvm(with fresh 9v batter) and all ground points should be 0.2 ohm
-the computer buzz/hum is the sound of coil whine in some motherboards or power supplies or videocards.

Or in my case, power supply or the vehicle ECM/ECU/PCM computer whine.

I really don't want to tear down the cables again and/or spend a fortune on expensive cables and grounding kits. I did mention that this just happens on the sub-woofer. I think that a ground loop isolator, even though it might just be a band-aid solution, should be enough. This, again is just covering the sub-frequency band, inserting a filter shouldn't cause it to lose perceptible sonic performance.

[yapoy86]

Lipat mo yung ground ng sub amp mo. Use short cable. Loose grounding lang yan

[oj88]

Ganito na ito before, even in my Civic. But during that time, the sub was in the trunk kaya hindi apparent yung noise. But it is now installed in an MPV so all nuisances and noise can be heard in the cabin.

Anyway, this issue is closed for now. I've already ordered online.

[benchman]

deleted post.