I don't beleive you have a ground issue, Ground issues produce HUM, not hiss. HISS is NOT a sign of poor grounds. HISS, it is a sign of system noise, It is typically called shot noise. This can be introduced in cables if located too close to high energy devices, or other places, but the places to look are several. Here are a few.
First place to look is the BBE, try completely removing it, not just using the bypass. BBE's are notorious for having noisy stage gain in it's processing.
Next place is your mixer. How old is it? sometimes the faders will wear & this will lead to an increased noise floor in the mixer.
Jim your amp is NOT LOW at all. Turn the amp down all the way. Then try this, turn up the mixer to 75% or more, where ever the unity gain position is for that mixer. Place the channel fader also at unity, now Play a typical track, Now turn up the amp to the normal volume is acheived that you use. Then listen to it with no music. I will bet that it will be considerably quieter yet still produce the music you seek at the volume levels you desire.
If it is not significantly quieter, then I would look at having the mixer tested with bench gear. That is the ONLY way to really measure the noise floor on it.
[ November 03, 2002, 06:00 PM: Message edited by: DJ Dr. Drax ]
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