Pambs, FYI, the Summit amps (ASC 200 from B&O) are easily obtained from open market suppliers like Parts Express
https://www.parts-express.com/icepower-200asc-class-d-audio-amplifier-with-power-supply-module-1-x-200w--326-208
and they cost a lot, lot, lot less than from ML. I recently had to...