I'm not sure if this the right place to post, but here goes!
I have been using the SR-507/SRM-600 Limited combination for about a year now. The thing is, recent usage has seen the right channel sounding crackled and distorted until it eventually died. Thinking that is was the phones, I brought it down to the dealer where he plugged it into an SRM-323 and was found to be working perfectly fine.
I now think the amp is faulty. Here's what I have done so far;
1) Tried a different source. (iPhone 5 to amp, didnt work, right channel still dead, the original setup was an Audio-Gd Reference 5 fed by an Anedio U2 from the PC)
2) Tried different interconnects, both SE and balanced, didnt work, right channel still dead.
3) Tried swapping positions on the interconnects (left to right etc), right channel still dead.
4) Tried swapping position of the tubes, right channel still dead, but the left channel started giving the same symptoms like the right before it died. (I did not re-bias the amp when I swapped positions, could that be why?)
Could I have done anything that could have killed the amp? Did I miss anything out when troubleshooting?
Any help would be greatly appreciated.
Thank you! :)