That's what you get for listening to AM radio.

Yikes! Was the place that sould you the receiver an Authorized H/K dealer? If so, I'd give them a call and see what they have to say. Then I'd try H/K directly.

Did you have anything strange hooked up to the receiver? I mean, had you perhaps wired an extra set of speakers in parallel or something otherwise non-standard?

If you bought it from an unauthorized dealer, then there probably isn't a whole lot anyone can do to help.

M80v2 | VP150v2 | QS8v2
SVS Pci+ 20-39
Emotiva UMC-1 & LPA-1
M22ti + T-Amp, in the Office