Hello Everybody! This is my first post so here it goes... I just bought an SVT4 Pro and I also have the 810 and 215 Classic Series cabs. Most of the time I am playing in large enough clubs to use both, but when I can't I would just use the 810. I noticed the 810 has two input jacks (2)-1/4" and (2)Speakons. Is the 810 just two 4x10's stacked on top of each other? The amp has 2 output modes, Stereo(Biamp), or Mono(Briged). I'd like some expert input on this and it looks like this message board is loaded with it. Thanks!