At least the value of 120 should be variable, but all 5.1 and 7.1 setups include a LFE, so it's not that far off the normThis is a very specific request, rather than the norm, it really shouldn't get coded into anything except as an option. EDIT: Sorry that sounded crappy, I meant to say 'maybe'
I'd say there should be VST plugins available for multichannel upmixing. However the plugin currently does not support VST's with diferent number of input/output channels, and that may become a problem. Might be worth looking into.
Problem is, there is currently no proper way to combine Directshow stuff with BASS audio... at least not that i know of.Symphy, any more thoughts on the possibility of adding FFDSHOW audio? This would solve a lot of configurable issues like the above, plus give all the wonders of EQ, resampling, mixing etc.