Hi All,
Not a Kemper owner yet, but seriously thinking about it.
I'm pretty sure I understand all of the Kemper Amps capabilities and functionality for recording, reamping, profiling, and "direct-out" scenarios. I do have a couple of questions for "traditional" live usage, though, and I can't seem to find answers for them (yes, I've read the manuals 
).
I run a (relatively) simple rack system, with an ADA MP2, a Lexicon MPX G2, and a Marshall Valvestate poweramp. I feed this into a single stereo 4x12 cab, or in larger clubs, 2 4x12s with the stereo cab switched to mono.
For those who don't know the Lexicon MPX G2, the unit is intended to work with rack mount preamps, where it is set up so that stomp box style effects are in front of the amp and rack style effects in the amp effects loop (Guitar -> MPX -> ADA input -> ADA FX stereo send -> MPX Insert returns -> MPX Main outs -> ADA FX returns -> Power Amp).
I really don't get too fancy with effects (mainly reverbs, delays, mods, and compressors etc), but I do enjoy the "space" of the stereo effects (stereo delays, rotary, Harmonizer etc.)
My questions to the Kemper gurus:
1. are the Kemper's effects as good as a Lexicon (subjective, I know - just interested in opinions)
2. Am I correct in the assumption that the Kemper's effects loop send is mono, but return is stereo by using FX return + alternative input?
3. The Master output appears to be the only stereo output. Can these be used with/plugged into a stereo (guitar) power amp and cabs?
4. If the answer to 3. is no, how do you hook up multiple guitar cabs (preferably in stereo) in a live scenario?
5. Is anyone using additional effects units with the Kemper (I don't mean stomp boxes - things like harmonizers, delays etc.)? If yes, are you just using the mono effects loop?
Thx in advance for all help and/or pointers!!
Rgds - Marcus.