They are not exactly busting into the American Market. 1 seller on ebay, seems to be the only distribution for USA , and Canada. Based on 3 months of use so far, its better than the DBX driverack pa, (for subwoofer duties), as all outputs will take a sub crossover setting.
The Driverack pa plus i used, the first two outputs took the low sub settings well, but the last output was letting higher frequencies through and didnt sound right. I assume dbx designed the third output for highs only, and never considered triple subwoofer outs.
The other thing i like about it is the standard black color, I like to see in my components.
Dbx now moved to silver which i think sucks. The face plates are designed to be removed easily, so I am surprised DBX does not offer optional color faceplates as add ons. So people can match their gear.
It would be interesting to hear about other units good for triple and quad subwoofer out.
A Good amplifier requires a adequate power supply, It does not matter what the amplifier is capable of if the power supply will not provide the power required. Most amplifiers have under rated power supplies. It is up to you to make sure you get the ones that are
least under rated if at all.