Hey Metropolis, yes what you propose will work ish (though not well, AND definitely not well enough to run up patches (patches should be run up with full live vol and then you can turn it all down to bedroom levels)) as to power cabs you need a power amp! You get some sound from Intelliflex into cab but not good for either, that's not what they are designed to do (volts vs watts bigg difference). But to answer your question, if you run MP1 to Intelliflex to cabs will it hurt MP1, no, though over time may hurt Intelliflex ? Probably the best value for $ poweramp which will work well with MP1 is Carvin DCM200. Carvin TS100 all tube is very nice but lots more $s and weight. Anyway you need to get a poweramp. Or if you can find a ADA B200s, great poweramp, my fav BTW.