I recently acquired a Trace GP7 SM300, and have had a difficult time finding any info on this model over the past two weeks. Is there anyone here who is familiar with this amp, and has any suggestions on it? Also, on the back, it's got two outputs, each labeled for an 8ohm load. Is there a way to run a 4ohm cab from it? I plan on running an 8ohm 2x10 from one output, and an 8ohm 1x15 from the other, but if the event came up that I wanted to use a single 4ohm cab, would I be able to? Thanks.