I've got an HK-595 system (Subwoofer and 2 satelite speakers with controls on one speaker for Center, Bass, Volume, Treble and Surround) for my PC. Everything worked fine for quite a while, but then (it seems to me that this happens if I unplugged something and then plugged it back in) my speakers started making an unbelievably loud squeal when the volume was turned up even a single notch (from 0) ... I've checked every setting I can think of on my computer and nothing makes even the slightest difference ... Even when I choose "Mute All" from the Windows controls, there's no change ... So, am I wrong to think that the issue is with the speakers themselves? Any suggestions?

I have a slightly different model but still with the sub woofer and the two speakers. I had this probem, and discovered that when you turn down the volume for the surround mode (labeled surr on mine) it will solve any hissing type noises. Hope this Helps! I have a slightly different model but still with the sub woofer and the two speakers. I had this probem, and discovered that when you turn down the volume for the surround mode (labeled surr on mine) it will solve any hissing type noises. Hope this Helps!

This fixed the problem I was having setting these back up (my classroom gets taken apart every summer for cleaning). Thanks so much!! This fixed the problem I was having setting these back up (my classroom gets taken apart every summer for cleaning). Thanks so much!!

I too have that exact problem. If I can fix it, I'll tell you how!! I too have that exact problem. If I can fix it, I'll tell you how!!

This is a problem in the surround section, replace caps c59 (10uf@50v), c63 (220uf@16v), c64(100uf@16v). Also check for any other caps in the areaAdd a Comment This is a problem in the surround section, replace caps c59 (10uf@50v), c63 (220uf@16v), c64(100uf@16v). Also check for any other caps in the areaAdd a Comment