In reply to:
Well, no, since the noise floor problems were all due to external grounding issues. In fact, as I was trying to trace the source of this last trouble, I discovered that one of my car amplifiers (the cheaper one, of course) was a big source of my ground-loop problems all along. I think most of the people having trouble were folks with multi-amp systems and there were multiple ground loops to deal with. 12-volt amplification is a bit of a black art.
Umm..not really - at least not totally on the mark1.. The snap crackle pop is actually there through the home-line outs.. try retrofitting/hooking up headphones to the line outs..
Problem fixed w/ the mk2 of course:)
-mark
...proud to have owned one of the first Mark I units