I second (or third) the USB-to-Audio interface.

For your purposes, I think the fewer knobs, bells and whistles will be best.

I use an Edirol UA-1A that I bought in the 1990s. It works great and they come up on E-bay all the time.

The simplicity for live performance is nice. Plug into the USB port, and connect a line from the output of the UA-1A to the amp (in my case the PA).

USB->Audio devices generally have wider bandwidth than the headphone or speaker jack and don't make static connection noises if accidentally jarred.

Notes


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