These things are primarily designed as stage keyboard monitors (it's why they have outs ). The PA is what provides the stereo separation (if they have a stereo PA).

While there are a lot of OMB's using these kinds of things as main speakers (combo amps), it's not what they are designed for. Sonicly, most of them are designed to cut through a busy and loud (think REAL drummer, and despair!) stage mix, not to sound flat and transparent like a PA should.

I have yet to hear the Traynors, but every other stage combo I have ever played sucks compared to a decent self powered PA speaker IF you are using it as a PA...

BTW, the separation on a REAL Leslie is only a couple of feet, tops.. Doesn't stop it from filling a room...