a new amp hum problem...checked the archives

thanks for the suggetions -

today, i purchased a line conditioner which failed to alleviate the problem. it wil be returned asap.

also, i did open the amp to check the transformer, but it seemed very securely fastened. i'll give it another look.

it's a huge transformer. there's already a bolt through the middle, but the washers aren't very big. i have some left over foam rubber circles with matching washers from my salamander archetype rack - maybe i'll try clamping down with those. also, i checked with the manufacturer - he'll replace the trans, upgrade the caps, and give me a 20 year warranty on the amp, but that's $400 i don't have...

as for the capacitors, i guess i can check those - do they just 'push' in?

i haven't cut the other circuits in the house yet, but i guess that's an option. i am also planning on trying the amp at a friend's house to make sure that it is an internal problem and not an environmental one. i will also research the Ah Offset Killer.

thanks again, i'll keep you posted.

here's the next question. i decided to further tighten the transformer to the chassis and the hum has diminished significantly, but not completely. the question now is how tight can you make it? if i tighten it anymore, i am worried i may damage the transformer. any guidelines on this?

thanks
-dan

I had a similar problem with an amp. As it broke in the hum disappeared. Maybe you should just let it break in like I did which is a very simple solution and see if that helps.

anyone know about the ah! ac offset killer? how it works? a less expensive alternative? still can't kill the hum.