I've been playing a svp-pro->qsc1202->whappo jr for about 3 yrs now. The jr is in a road case and together it weighs around 150 lbs. Joe and I can horse it around ok but once in a while I have to deal with myself. I'm getting too old to horse around a 150lb cab so, I sold my Harley (which I've been trying to do all summer) and bought a Epifani UL310. I've been playing it in the shed with the svp-plx and it will more than do the job. It isn't quite as loud as the whappo but I like the tone just as well. Today a nib Shuttle 6.0 I got off ebay (terrific price) arrived and I hooked it up as well. The Shuttle is rated at 600 watts at 4 ohms and the qsc 1200 at 4 ohms. Believe it or not the Shuttle holds its' own against the pre-power amp setup. The tone is a bit glassier but thump for thump the Shuttle holds up really well. The combination of Shuttle 6.0->UL310 is KILLER.