[LAU] Sending audio out and back into JACK

[Andrew C]

Hey all,

No question is a stupid question, as they say, so I might as well ask.
What kind of external audio hardware/JACK trickery would I need to
send a synth running on my laptop through a seperate output channel on
an audio interface with multiple ins/outs, send it, let's say, through
some outboard effects, and then back into the laptop as a seperate
input?

Cheers,

Andrew.