I'm in a busking band, the Meetles, and they've been pushing me to buy a Crate taxi amp.. The crate 15 is twice as heavy as the Roland AC-33 and that's an issue. I'll be interested to hear about the power using vocal and guitar with batteries vs. AC. Glad to hear it sounds lush. That's the guitar, I take it? How about the voice? What does it do when pushed to "10"? Just curious..
http://www.youtube.com/watch?v=dnHhAaB85EY
I've got the little Vox DA5 (5 watt) amp. You can hear me initially, but not after a while as more are playing. At the moment, the lead guitarist is sharing his crate 15 with me (for my voice) which has made my voice sound SO much better and louder as well while I continue to use the Vox for guitar The Vox did go on strike a couple of weeks ago, but came back after I fiddled with the batteries.
Anyway, I'm very interested to hear about this new Roland AC-33 as well as the new Peavey Nano Vypyr and anything else battery-powered that comes down the line.