Quote: Originally Posted by Narwhalius /img/forum/go_quote.gif Which other ones do you think could be cold? And could this possibly be my volume pot? I'm not so sure those solder joints look bad, IMHO. However, the pics are great - but it's tough to get a perspective on your amp when we're only seeing postage-stamp views here and there. That said, I'm concerned with the wiring going to the right LED. That wiring is an accident waiting to happen. I'd wrap some black electrical tape around those joints. At this point, you may need to test the pot. The channels are the rows of three pins - three pins for left, three pins for right. The signal input are the two pins closet to the terminal block. See if you can measure resistance between that pin and one of the other pins in the same row of three (same channel). Rotate the pot shaft and see if the resistance changes. It's very easy to verify the pot condition this way, because any differences between the two rows of three are the differences between the right and left channels. Tell us what you get. Again, perfect values are not necessarily important, but differences in the measurements between pins on on row of three versus the other row of three - before and after rotating the pot shaft.