I record everything via mixer->audio interface (focusrite scarlett)->mba (with ableton) but I only use outboard gear for fx. The only signal processing I do in the box is some EQ:ing and compression. I often send it out of the soundcard for further outboard processing and sometimes onto cassette and back in the soundcard for sound “refinement”. So the computer is basically a glorified tape machine.

When I don’t want to use the computer I plug my cassette deck into tape out on my mixer and record straight to cassette and then later plug the tape deck into my soundcard and record it into the computer.

One option for you would of course be to get like a Zoom portable recorder with at least stereo input and plug it straight to the desk.

Edit: It should be noted that I want that kind of grit that tape decks and cheap vintage outboard gives me. If I wanted a more “professional studio sound” I’d buy a more expensive mixing desk and a fostex tape recorder.