Rockford Fosgate 225.2

[Perry Babin]

I would run it for a couple of hours with music into a dummy load to confirm that it's OK. It doesn't have to be at full power for this although I would test with the amp driven to intermittent clipping with music before calling it repaired.

 

[objext]

Think the sound coming from the board itself is normal? I've heard of that happening but it was new to me. What components would that be from?

 

[Perry Babin]

It's more common to be coming from wound (inductors, transformers) components than the semiconductors or resistors (although the resistors are wound, but bound to a ceramic core).

Wearing a new pair of latex/nitrile cloves (not conduction), touch various components to see if touching anything quiets the sound.