DSJR
Major Contributor
You'd have a hard job finding the electronics as they're tucked neatly away behind the lightning or USB C plug mechanicalsI guess ill buy a $10 DAC, put it in a fancy case and charge $5000.
Ideally though, you'd need to supply the electronics and design a proper line output to take the single ended at least to 2V. The (inaudible) jitter would no doubt need tidying up. I suppose this is where The SU1 comes in as a tidy well sorted design for UK £80 or so on Amazon.
But yeah, you could maybe take an SU1, dress it up and put in a fancy supply, find a way to create balanced outs and maybe a display of sorts and charge several grand for it