TF420 through a 1212 cab, picked both up used a few months ago. For starters, it's PLENTY loud to keep up with a hardhitting drummer and a full guitar stack. I run the amp flat with just a hair to the treble side on the Timbre and around 3 on the Enhance. The only thing missing was a bit of booty, but that was quickly solved with a slight bass boost on my Sterling. Gain and Volume were both only at 3 and I was pushing some serious air in a very wide open room (50' x 100' warehouse), and that was even with my Ampwedge shoved under the cab. Good stuff! Incidentally, I joined a new band today, and already did a radio-interview with them. The best part is I went to LA to jam with another group (which didn't work out too well) but the owner of the rehearsal space said "hey, you're good. Stick around when you're done here, I need a bassist."