What’s the state of the art for low-latency audio interfaces for DIY projects? – DIY: Build it and they will come Forum

I’m trying to put together a project that’s basically a custom multi-FX unit in an amp head form factor (and, like an amp head, has a power amp part). Basically it’ll be a computer in a box, run Reaper on startup, and be controlled through MIDI switches on the front and back.

Raspberry Pi has pisound which looks really great and low-latency, but (1) RPI is unobtanium right now and (2) x86 boards generally offer a lot more raw power. So I’d rather use something x86-based if I can. I’ve had some trouble figuring out what sort of low-latency hardware is available for the job though. General USB audio interfaces don’t really have great RTL without going into the thousand+ dollar range. It seems hard to match to what pisound can do, or embedded ADCs are capable of. Is there anything out there that comes as a board I can use directly for the job here?