So...I picked up my new BR610 from UPS yesterday and didn't even have time to take it home before I headed off to band practice. I usually play through a Fender Rumble 100 during rehearsal, but the new amp was just itching to come out of the car, so fiinally I relented and pulled it out. Here's what I found: 1. I was a little concerned that I didn't have time to really fiddle with it, and didn't want the other guys to sit and yawn while I tweaked the thing to death. And while I'll, no doubt, spend plenty of quality time with it tonight, it was relatively easy to dial in a very nice sound in minutes. The DRIVE is a Godsend on this amp. 2. I play through a 5-string Schecter and out music (all originals) covers everything from ballsy blues and straight-out rock 'n roll to a few acoustic numbers with bongos as the drums. The amp handled everything perfectly. Punched forth on the louder numbers, but gave me that warm, smooth feeling and the quieter ones--all with very little adjustment to the amp. I'm pretty much all over the place vertically on the 5 strings, and I lost NOTHING--from the low B all the way up to the G string. The 10's handle the lows better than the 15" in the Fender and even the guitarists remarked afterwards that the sound really punched through, but didn't overwhelm anywhere. Needless to say, this one is definitely a keeper. I couldn't be happier with my, so far, limited used of the BR610. ...now, anybody want to buy a Fender Rumble 100?