I have a Zoom L12 for mixing/recording my synthesizers, PC system sound and PC audio interface. I got it used for $500.
You can get super cheap mixers as well, but the quality will probably be hit-or-miss. (Proper grounding and interference being the biggest issues.)
Alk@sh.itjust.works 3 weeks ago
Yeah that one is pricey, but you can certainly get cheap ones for a fraction of the price. Most people don’t need the one I have, and smaller ones can serve the same purpose.