Really that outlandish to think that changing the dsp could change the sound? Guess I will find out. Just sent in to get firmware update. Thanks for heads up Donkey!
Test results.
Pic 1 thd+noise vs freq at one watt
2 freq response 10 to 50000hz. (close to within 0.5dBr from 20 to 20k)
3 Spectrum analyzer (predominantly even harmonic)
4 100hz square wave about 1 watt
5 10000hz square wave about 1 watt
Hats off to Mr. Pass! I love it! Sounds wonderful! Bias is at 0.35v will increase to 0.4v soon. Most of the wire was reused form the Sumo and some was a little shorter than I would have liked for routing but it turned out fine. Will put chassis case all back together soon. Will test amp...
Purchased a clean exterior, dead butchered interior Sumo amp for the chassis.
Chassis $200
Power transformer 400VA 18V Antek $70
diyaudio store parts $140
Mouser order $180
Total cost $590
Will update as build progresses.