rgolz3

Go here and read. Worked for the loud humming I was experiencing. Worked for a bunch of other people to. https://community.klipsch.com/index.php?/topic/113208-51-ultra-loud-humming-control-pod-or-amp Took me 30 minutes and $3.58 at Radio Shack.

There is another thread on this site regarding the humming issue in which StPete Cooling said the hum was almost always caused by 2 100 uf capacitors by the two small black heatsinks on the main board. Many people on that thread fixed their hum problem by replacing them. My ProMedia 5.1 had a terrible ear shattering hum. (Started off low and gradually got worse.) After reading StPete's suggestion I went to Radio Shack. 30 minutes and $3.58 later my problem was fixed.

I am another camper who registered on these forums only to thank Stpete Cooling for his advice. After a quick trip to Radio Shack for the capacitors and about 30 minutes of work I am once again enjoying the sound of the best computer speakers I have ever owned. NO MORE HUM!!! Thank you StPete. On another note....I still have an audible hissing. It's not really a big problem when playing loud music, but at higher volumes and when there are quiet passages or no music playing, it is quite annoying. Any tips for this one, Pete?