MusicMan 65 w/ 1x15" bottom. Replaced the stock speaker with an Altec Lansing. Nice sounding rig but not real loud. Then I built an TL606 cab with an EV15L speaker powered by a B25 (great sounding rig). Then I built a 2x15 ProCo Sound clone (TL606 derived) and drove that with a Kustom 250 T&R head. Then I started using SVT's with the flat back cabs (so 150watt) and another SVT with 2 V4B cabs. Then I built a large PA system that I could break into smaller rigs and rent to multiple bands and/or DJ's. Cabs were mainly ProCo sound 2x15 cabs, 1x18 cabs, and white EV Horns (you could group them in three's if you're building a large system) powered by a bunch of Crown amps (later BGW's). Well, my bass amp could then be 2 1x18 cabs, 2-4 2x15 cabs and 1-3 EV horns with a crossover and a bunch of power amps. preamp was my B25 - loudest bass amp I've ever heard. I could play clean and keep up with a guitarist that had 2 Hiwatt 50 1/2 stacks, Ampeg VT22 w/V4 bottom, and Twin Reverb w/bassman cab (yep and they could all be running full blast at the same time).