I recently picked up a Shuttle 6.0 and not to gush or anything, but I really love this amp! I used it for the first time last Saturday with an 8ohm 2-12 cabinet in a medium sized room and even though I wasn't getting the full 600 watts from the Shuttle, I was never at a loss for volume and was able to keep up with 2 loud guitar players and an aggressive drummer with NO problem. The soundman had nothing but praise for the DI out and extended compliments on my tone and playing four or five times over the course of the evening. The bandleaders reaction to the Shuttle? He was a little tentative about it at first but was all smiles after the soundcheck- and at the end of the show he said that I've never sounded better. NICE! The next day I played an outdoor festival show on a big stage- again, more compliments from both the soundman and bandleader, as well as other bass players who were at the show. I found that the Shuttle, all cables, a strap, and a Boss TU-2 fits perfectly in my laptop shoulder bag- amazing. Load in/out is a breeze. While I'm still learning how to get the most out of the 6.0, so far I couldn't be more pleased with it. This is one hell of an amplifier and congrats to the good folks at Genz Benz for creating an amazing product! If any of you Shuttle owners have any tips or tricks to share I'd appreciate it.