Have you checked out the McIntosh MEN-220 room correction system? That might be what you're looking for though it goes in line between the pre- amp and power amps.
Room Correction Processor?
Is there such a thing as an audiophile room correction system that I can connect via the processor loop on my Rogue RP 5 preamp? If anyone knows of one or has experience with, could you please chime in here? I am not looking for a computer based program connected via a laptop, I am looking for an actual piece of hardware that will do the trick.
Thank you..