The set up is used to drive, main speakers and subs, DBX, Driverack PA2 Controlled, Peavey IPR 1600 and 5000 amps. 1550w per channel @4 on mids and subs. 300w @8 on horns. All my DBX Driveracks use a stereo Triamp preset  and when used in biamp mode, the high frequency amplifiers are not used.  this means no changing patches inside the amplifier rack, everything is done through the front panel of the processor.