Just wondering if you can run your multi-effects pedal through your external audio interface. I'm guessing you can, but would it sound good? I have a Floor Pod Plus multi-effects pedal, and I'm thinking about buying a decent but cheap audio interface via usb. Would it sound good?

It would sound as good as you made it sound - a cheap usb interface wouldn't be as good as a better quality interface, but you'd certainly be able to connect the two pieces of equipment.

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