The Fisher stuff is really nice equipment. I've repaired several of the RS-2010's and found them a well thought out and sounding set. They use the STK-0105 modules and run a 100 watts. Many have the smaller modules installed because the big, high power 0105's blew out and couldn't be found. Why? Because they were junk. Underrated for the job. If a module could be made, it would be a monster in it self and the sets it would go in would be limited for room. A stack-able arrangement with two boards? Starting to get kooky.