Looking for some advice. I currently have a HSU STF-2 sub that only has a mono/LFE input. I am planning on picking up a stereo pre that has two sets of preouts. I need the sub to help pick up the lows for my M22's. I recently read that most CDs have the bass frequencies mixed in mono, so I could just utilize one channel of the preouts, but I'm hesitant to go this route because I don't want to lose any bass info, just in case it's not mixed in mono. I contacted HSU and they replied that they offer a custom "summing" interconnect that will combine the L/R's into a single RCA.

I'm just curious if anyone would have any other suggestions to work around this sceanario until I get a sub that has L/R pre inputs?

Thanks