Sub-Amp repair?

[Froste]

I have 2 sub-amps that need to be repaired, yet I have no idea who or what might be able to do this.
Does anyone have any ideas were I might get some Sub-Amps repaired?

[johnastockman]

Any competent electronic repair shop could perform the repair, but around where I live, all we have are big-box retailers. No service department in-house at those joints! Larger metro areas usually have a decent shop or two. In my neck o' the woods, the closest is in Seattle, over 100 miles away. Get some references if you can.

John A.