Yeah, they were a high end player briefly in the car audio space, at some point Precision Power was linked to them. I may have some marketing literature on the stuff somewhere...
The price for the TDB 2250 is at mostly everyone's reach but what I mean is if the sound of this amp is up to the task compared to anything within that price point.
Excellent amps, I have a signed production prototype TDB 475 in my car. Purchased when they first came out. It has performed flawlessly since I got it.