I guess I didn't make myself clear. I want to discuss the SQ differences of
car amplifiers that newsgroup owners have experienced. I.E. Kenwood vs.
MTX, etc. I'm trying to decide if I should sell my Excelon and maybe by a
SoundStream, ADS, JL or MTX.

Does this mean I can respond now? Cool. I've owened MTX, a/d/s, and
Kenwood amps. I've installed even more. The older Kenwood PS series amps
were brutes. Probably heavier than their MTX counterparts, since you're
into the weight thing. The a/d/s/ amps are deceptively heavy too. All
three manufacturers made good amps at affordable prices, IMO. I haven't
had much experience with the newer amps from these manufacturers though,
so I'm probably not of assistance. I go a/d/s/ all the way though simply
because of the extensive crossover settings available on their
multichannel amplifiers.