So you just unboxed your new entertainment gear, hooked everything up, and you hear buzz, whine, hiss, chatter, or any number of other annoying noises that have been known to plague audio equipment.

I tested out a used High Fidelity X-Can v2 tube headphone amp at a local high end audio store. I tried it there and it was extremely impressive hooked up to some quality CD Player. There wasn't even ...