A few days ago I bought Klilpsh Promedia 2.1 speakers. About an hour ago I discovered a problem I'm having with the built-in amplifier in the subwoofer and I'm not sure if this is normal or I have a defective set. I was using headphones connected to the contol pod's headphone jack. I turned down the volume to almost all the way down on the dial since it was too loud for me any higher volume. My left headphone is quieter than my right headphone when the volume is nearly all the way down on the volume dial, like around 3-4% volume. I tested different headphones and still had the same problem. It also happens without headphones if I almost have the volume all the way down, like around 3-4% volume. If I want to use a quiet volume with headphones I have to turn down the Windows speaker volume setting to 20% or less so that I can turn the dial on the speaker a little higher and still be quiet without the left headphone being quieter the the headphone. Do my speakers have a defective amplifier or is this normal if my volume setting is almost all the way down on the dial of the speaker?