Audiophiles hifi appreciation thread old and new

I think my amp has had lived it's life... it's 10-15 year old Denon that hasn't been used much, spent most of it's time in loft. Recently attached wharfedale diamonds to it and it's been great. However now it simply delivers white noise when plugged into anything. A few times before this it would be playing then switch to white noise, after turning amp off and on again it would be up and running again. Time for a new amp? It's pretty dusty inside, all fuses are okay, doesn't appear to be anything else blown.

Anybody have any advice?

Cheers

I was using an old-ish Denon recently and it was only coming through one speaker, i just took the casing off and went crazy with a can of compressed-air duster, seemed to do the trick!