I'm not a stereo fan. But the m9 sounds impressive with stereo to 2 amps. Give it a try. I also went stereo out to the vibrato and nomal of the DRRI with good results
100% true man, I'm running mine on stereo into a Egnater Rebel 20 and an amp made here in Argentina which is basically a clone of a twin on the clean channel and a really close approach to a Soldano vibe on the dist channel; I set the rebel to sound a bit more "british" (going into a custom made 2x12 cab with eminence legend gb12 in it) and the other amp to sound a bit more "american" (going into a 2x12 with celestion "hot100" in it), I just mess with both volumes and the sound ends up being huge lml
I do have a question for you though:
I'll be rehearsing tomorrow with a new band and they got a DRRI for me to use on the practice room; I was wondering if I would get stereo sound by plugging into both channels...is that possible or just one channel can be used at a time?
It's EXTREMELY difficult to get stereo from one speaker.