That may also be an option, but I don't believe the mini has an aux output, so you'd have to use the speaker output which is already amplified. This would likely introduce distortion as most power amps are designed to accept low level signal but you would be feeding it a signal that is already amplified. Its likely the amp in the mini can't easily be defeated. If you are good with electronics and like tinkering, this might be a fun project to experiment with, but just know it might not work as well as expected.