I took my Sunfire HRS-12 from my main floor (15000^3 ft, hardwoods) to the basement (l-shaped 5000^ ft, w/w carpeting). Auto setup with Pioneer VSX-1021-k using BIC DV62's across the front.
For movies the HRS-12 was very subtle on bass until it created flabby notes. I do think it added moderate mid-bass, but I think the room is just too large for it. I was very happy with side 1 Dark Side of the Moon (pink floyd!). I wasn't expecting this result, but I don't think I'm surprised either. My HRS was bought for main floor, where it's primarily for music and I like it very much for its presence (not tactical at all with music, just adding fullness).
I know this is subjective unlikely to be worthwhile for others, but I'm trying to get a read on my room and $1k options -- so I hope someone recognizes what I'm experiencing.
With HSU, SVS, Rythmik and Epik in mind, I'm now trying to hone in on two subs (e.g., VTF-2.4) or one (e.g., VTF-15, or FV15HP). Because I didn't do FR, I can't be precise about LFE or SPL I require...but I do think I can say that subs that have similar compromises to HRS-12 aren't what I'm looking for.
I'll likely call the four above companies -- my hope is that that they'll be as patient and interested in my budget as you all have been. If you have more comments, wonderful. Else, have a great weekend.
PS: I'd love comments from anyone with an L-shaped 5000 cubic foot room where listening position is 1000 cubic feet of the room