Marshall Acoustic AS50R and Acoustic Bass Guitar. Would this work? Does an acoustic bass guitar require a bass amp or would it work through an acoustic amp like the one mentioned? Reason, I have an upright bass which is'nt always practical for moving about to gigs but i like the acoustic sound so i thought maybe an acoustic bass which is more portable could be a possible solution. Next main issue would be whether i'm going to be able to use this amp i have or whether its just plain crazy and therefore invest in one of those great looking Roland cube amps(small large sound apparently?).