Disable lowpass again, remembered the filter is explicit for spdif output (where it matters). Make spdif component explicitly have a port for left/right. Get all versions building again (some needed old dac for space reasons). Change default volume for adc and sio mixing for v4.5 (SHOULD not need the filtering there, testing now).
Do not overlock keyboard io expander so much!
Refreshed
Updated v1 build
Remove SIO_IN2/3