Thanks! The sound quality of it depends mostly on the sample rate it is able to achieve, which is somewhere around 9.6khz if all it's doing is reading a sample

Thanks! The sound quality of it depends mostly on the sample rate it is able to achieve, which is somewhere around 9.6khz if all it's doing is reading a sample and then outputting it to the DAC. At 6bit 9.6khz a guitar sounds surprisingly clean through it, aliasing is only really noticable at the highest frets of the high strings. At lower bit depths and sample rates it gets really interesting. Getting the best sound quality out of it also depends on finding the sweet spot on the input gain to get the best dynamic range from the DAC without clipping, although I designed the preamp to sound pleasant when overdriven, mostly using JFETs.