I think I like the Behringer Truth B3031A and the B2092A sub, however can't decide whether to just connect it unbalanced with a 2*6.35mm to 3.5mm stereo to the sound card and an XLR to 3.5mm connector for the sub or maybe get a DAC that could output left and right XLR as well as sub XLR.(problem is I haven't found any with sub XLR yet, and the sub only accepts XLR) It would be balanced and I would need less cable magic, I'm guessing lots of converters don't do the sound any good.