@joshhh speaks truth. The current H4N Pro has the same preamps as the H5 and H6. Biggest differences are the user interface, actual pro line level input, and modular mics. Been using the H4N Pro for a little over a year now for field recording with an external mic, band rehearsals, and sometimes recording straight from my modular. Haven’t used it as a usb audio interface, but I imagine it’d work great based on the preamp quality! Latency though, I’m unsure.