Actually, I'll peg the problem here as being a too-small cab. One rule of thumb to always follow when working out builds on MG is that you always want to start with a cab that seems too large for your purposes. Most of the time, once you start dropping modules in, you'll discover that it WASN'T too large in the first place! Plus, if this is intended as a live performance device, you DON'T want teensy little modules as those will only result in trouble when gigging. Lots of potential to grab the wrong knobs, etc. The Intellijel idea seems right...but consider a 7U 104 from them instead.