Didnt know if I should start a new topic, but I just picked up a JL Audio F112 sub and was wondering if this very fast, articulate sub mated with Unifield 3 would make up the difference between U3 and SR4mk3. Seems like mostly bass extension is in SR4mk3's favor. My room is a 15'x20/25' basement on slab with 7ft drop ceiling. Thanks...