OK, Here's where I'm at. Currently play and Ampeg SVT 3 Pro. Not enough juice so it's going. I've been reworking other aspects of my rig too. Am switching from a Spector 4 to a Lakland 5. Have gone from 4/10 to a 1/15 + 2/10 (this may change). I play hard and loud. I have to because our guitar players don't seem to understand the meaning of "turn it down". I play in an original hard rock band. OK my choices: Decided to stick with the Ampeg in some way/shape or form. Ampeg SVP pre + QSC 2402. The good: Should come in about 10 lbs lighter than the other 2. The SVP has a drive control for getting that extra *bite* that my type of music needs. Uses 5 tubes for added warmth. Plenty of power. The bad. QSC is an unknown reliability wise. Can't bi-amp without an external crossover. No compressor. Ampeg SVT 4. The good. Powerfull. Good set of features. Can biamp w/adj crossover. Has built in adj compressor. The bad. Heavy. No drive control or distortion as in the SVT5. Ampeg SVT 5. The good. Powerfull. 2 channels can be blended to produce the right mix of dirty & clean. Biamp w/xover. The bad. Heavy. 1 button compressor. No eq. Thoughts from the crowd? Ampeg is the only piece of gear that has never let me down. Sometimes I'm guilty of forgetting that.