Imagine two of these suckers stacked. I just did because there are two local to me for $450. If only I had a large pickup truck to move them in. I bet I could make ears bleed.
Peavey 3020HT- 2x15, 2x10, mid horn, high horn in one cab. Wow.
As I recall the drivers in those are rather unimpressive for bass power handling and the boxes required a rack-mount processor designed especially for them to sound good - FOR PA WORK. Someone like me could duplicate the rackmount unit with any modern DSP speaker management system, but I wouldn't bother because there are so many nice PA top boxes around.
As far as bass cabs, i suppose they wouldn't suck TOO bad in a DOOM tube rig if the crossover were properly disabled to just include the woofs and mid cones. Or if the horns were covered over with thick dense foam.
I wasn't actually giving them credit for a capable bass rig, just a huge one. Nor was I actually considering using them. I figured they'd suck for bass.
I figured that. But I thought I'd give an accurate appraisal for anyone considering them. I forgot to mention they weigh about 10 metric tonnes.
EDIT: Come to think of it perhaps they require the processor for crossover functions... one thing that was cool about that black box processor for the time was that it actually was set up to measure the voltage that was hitting the various drivers and it would scale back the LF content as the woofers approached the end of xmax. At lower levels it actually acted a lot like loudness compensation too, increasing bass extension then.