I want to do this because I play bass and for some reason when I adjust the tone and pickups on my bass i hear minimal difference with all bass amps on amplitube (even If I adjust a pickup/tone to 0 to 100) so I want to use my actual amp for this. My audio interface have 3 ports , one for mic, 1/4 guitar input, and 3.5mm output. My amp (fender bass rumble 25) have 3 ports 1,4 guitar input, 3.5mm aux in and 1/4 headphone. Also right now because my 1/4 cable broke I'm running with a usbto1/4 cable and a headphone cable plugged to my PC to the amp because when I plug my amp to my audio interface it make a ringing noise. Also I use a Squire Jazz Bass