favorite pass amp?

No I haven't,but I'd like too. Have you?

nope, but i saw your name krelldog i thought you may have more experience with krell

I've listened to quite a few ( X, XA ) and in my personal opinion, the Aleph series is still the best sounding gear out there.
Depends on the speaker load, of course, but connected to a high sensitive one, they are class of it's own.

I actually have my Pass Aleph 30 is driving average efficiency (not high efficiency) speakers in a 12'x17' room with plenty of volume. Unless your room is huge or your speakers are super demanding, there is plenty of power for moderately loud volumes. Most normal listening levels use only a few watts anyway.

Mjcmt, I want to get An Aleph 3 or 30, depending on what input I gather from those who've owned them. The amp will be driving an efficient DIY MTM design, electically crossed at aroung 80hz. with a slope between 18 and 24db/oct. Also, should I consider an Aleph 5, or isn't the extra oomph worth it as far as the difference in sound quality and soundstage worth it?

Thanks,

S.H.