About 2 months ago I got an STF-2 and it does a great job with my 1070. Some of you may recall that, earlier this year, I wondered whether I really needed a sub because my B&W CDM7 mains do a pretty good job with bass. I'm convinced.

I did not have an opportunity to compare subs in my system, so I can't comment on the relative merits of the LFM-2 and the STF-2. I might have needed the LTF-1 compact for my room, which is about 12 X 17 feet. Based on the sizing chart on HSU's web site, the room is on the line between the STF-1 and STF-2. The STF-2 has a little less power in the amp than the LFM-1 but I doubt that it matters in my system. I can shake the room without difficulty if I want to.

But the extra base helps with music, too.

BTW, the HSU site has said the msrp of an STF-2 is $399, but they're selling it for $349 plus $30 for shipping. It's been that way since I started shopping last spring. I assume the "Sale" is really a price reduction.