controversial claims by audiophiles notwithstanding... i'm somewhat interested in high-samplerate DAC's for the possibility of time domain multiplexing of multiple channels. 2 channels @ 384 kHz = 16 channels @ 48 kHz if you had a driver + external hardware to do the muxing/demuxing. of course you'd need some sort of "word select" embedded in the signal - perhaps you could do this with GPIO, or maybe use part of the 32 bits samples as metadata. wouldn't be easy, but i wonder if it's possible. anyway the first step would be getting a DAC like this to work with the host at these high sample rates, so if anyone has experience with that, i'd be curious to know.