I've met with the individuals that conceive, design, and manage the various offerings thru their product line. In the above responses, I can appreciate the various perspectives each here bring, and their respective take on this product. ProAudioTech certainly doesn't limit their prospective market, however a large amount of their business is geared toward turn-key, top-to-bottom high performance installs.
I'd say this sub fits in nicely in with what they are doing, ie., no nonsense, DSP contoured, high swept area, low distortion, robust build quality. Kind of one of the big pro firms (JBL, EAW) except with more attention to cabinet contributions, no allegiance to any one mfr, so they're free to pick and choose what drivers/electronics go where. The last I know, the subs utilize Powersoft amplification, ...there is no better. They're one of the first to implement the coaxial BMS compression driver. Back in his two channel high end days, Hales was one of the early proponents recognizing how a cabinet can benefit from absolute inert characteristics. He brought that to this venture, merging zero contribution cabs with high output/low distortion designs.
Anyway, in talking with them in person, they shared much about their clientele ... movie studio execs, directors, Hollywood stars, screening rooms/HTs, requiring concert like SPL in a turn key finished product. Every recent CEDIA I've attended I've spent time experiencing their offerings, and visiting with the staff. They do offer relatively affordable items. Two years ago at CEDIA, for effect ... they demoed their least expensive two ways and subs in their big demo room. One could do a lot worse for the money. Flush mount dual 6" two ways for LCRs, in a sizable multi row HT. It was quite impressive.
I like what they're doing. I can't afford any of it, but I can appreciate what they offer.