i have upgraded CX100 speakers with your beocreate board. the boxes habe of course a power input and play wonderfull.
with a other pair of passiv loudspeakers and your amp100 and dsp board testet room measurement and i am pleased with the results!
Question: Do i have to 'drill into the CX100 to 'bring USB' out - OR ist there a way i could use lets call it an addtional 'room measurement Raspi (Amp100 + dsp + raspi + USB Measurement Mic) ?
Measure on one - play test tone on the other - than transfer room euqalisation file?
just askin ... before drillin ...