When I got my Kit5 going,the first thing that I noticed was the loud hiss through the speakers- a LOT of hiss. Initially I had used the Rin/Rfeedback combination of 22K/47K. I changed this to the 22K/22K combination which reduced the hiss considerably,but,having efficient speakers,I still find the amount of hiss objectionable. I could reduce the gain again, but I'm planning to try different (less efficient) speakers with the amp, and I might end up with too little gain. Any ideas? I also noticed a high pitched noise through the speakers. This is at a low level- I have to put my ear to the speaker to hear it, and it stays at the same level regardless of the volume setting. I tried using a larger value capacitor for C34 (a 470uf), but this didn't do anything. I'd assume that this noise shouldn't be there,and don't know what would be causing it.Suggestions?