> i wonder if this is a similar thing to what commodore64 owners would say about the > first SID chip having a certain sound (partly analog i think) which doesnt sound > 'right' when digital machines try to emulate it
The SID chip is part analogue and part digital. Emulating it perfectly for everyone is pretty much impossible because commodore weren't able to manufacture either the chip or the rest of the computer reliably. Bil Herd has some interesting stories about how the engineers weren't allowed to see what manufacturing did to get the computers out the door. IMO the difference in your own hearing due to aging is greater than the difference between a real c64 and an emulator.
It's entirely possible in ckon there is an un-emulated analogue sound section like a filter, or the 4 bit samples don't have the correct scale applied to them. However just by saying "I remember it sounded different" doesn't help us. Even a board recording isn't that helpful as a lot of components will age and cause different sound.
Only if another board turns up or the sound is reverse engineered from the pcb/schematics and it shows up that we're not emulating it correctly will anything get done.