I know that this is an old thread, but feel like it is worth giving my opinion since I have built two bass rigs around Peavey bass cabinets in two different eras. My rig in the '90's was two 410TX (8 ohm) stacked with a 210TX (4 ohm) stacked on the 410's and a 115TX BW (black widow & 4 ohm) on the floor next to the stack of tens. Notice all rear porting. The two 410's were powered by one amp and the 210 and 115 powered by another amp since there are wattage and ohm differences. The 210 on top was to give volume at ear level, essentially a rear monitor with benefits. Cabinets got ruined in Hurricane Ivan 2004 and not in a band at that point, so fast forward to today and in a band. I paid top $$ new for everything back then, but with ebay, Craigslist and "Used" equipment at Guitar Center (website), there's no way I am paying for new. I'm not straying from 410's this time. They do everything that a bass player needs. If you need a different tone or range, get it from your EQ. Current set up is two stacks of 410's going two wide for wall of sound instead of taller. Peavey 410TVX (4 ohm/front port) cabs on the bottom, 410TX (8 ohm/rear port) cabs on top. I use Ampeg heads to power all, but Peavey CS800s or x will do the job just as good! By the way, I have carpeted over the tolex of the TVX cabs to keep the look and the carpet wears much better in transit. If I played larger venues, I would simply double what I have now.