Leaderboard

Cool boards! For the Core+SID, maybe check a few clearances: bottom left mounting hole + J5 header (header may be more convenient as a 2*5, or even 2* 2*5 as is done in the Core8. But I see there's not much space) LCD and CAN headers trimmer pot on the left might be too close to the board edge, normally they don't like holes/plating near to the the milling cutter. (Shouldn't there be two pots, one for brightness and one for contrast?) I would put the voltage regulators at the edge of the board, this way they're easier to heatsink if needed and they radiate heat away from the SIDs/capacitors etc. Is there a reason for two bridge rectifiers? Have you thought about the grounding scheme around the SIDs? I know the MB-6582 board has a gap in the ground plane, presumably to keep the digital noise off the audio circuits. You can check the sammichSID layout for inspiration, although it's a little bigger than your 10*10cm.

Careful with that. Sampling at 192kHz gives you a Nyquist frequency of 96kHz, which is just 4kHz away from the PSU switching frequency. In other words, what you get is noise in the 4kHz range. You are VERY likely to hear anything in that frequency range that is not properly smoothed out. But then, there is no good reason to use a 192kHz sampling frequency anyways, apart from a big ego and wallet, maybe :whistle:.