Sorry if this has neen asked but withe the M9 now 600 watts Im left scratching my head. I have two 4X10 powerhouse cabs and was wondering if the m6 had enough to push both cabs. Right now Im playing an ampeg svt7 pro which is plenty loud. This head just isnt a mesa. I played a carbine and loved the tone. I was going to pick one up but im not sure if 600 would do. Guitarist plays loud as hell. I have my master at 3o'clock and my gain is at 11o'clock! By far loudest band Ive played in.