Rythmik DS1500?

[JSiemens]

I have yet to finish my home theatre system, just got to pick out the subs. I am currently leaning toward building a pair of Rythmik DS1500's in the sealed version. Does anyone have any first-hand experience with this product? I would greatly appreciate some reviews before I build them. The servo feedback SEEMS like the way to go, but not sure if it really works. I have a 14' x 25' media room (my wife still thinks it is a living room!) with Denon 3808, Paradigm CC390 center, Polk Rti12 fronts, Polk Monitor 60 surrounds, and Polk Monitor 40 rears. The system is fed by Direct TV/HD, Sony Blu-Ray and Sony SACD. All is output to a 46" Toshiba Regza (new but already too small!). I just need the subs! Admittedly, when I play WOTW and U-571 it actually sounds like I do not need a LFE speaker but want to complete the system.

[RUR]

If you haven't seen it, here's a thread on building a DS1500 on AVS. Brian Ding of Rythmik Audio posts as Rythmik (go figure!) there.

[fronn]

I love mine. It's one of the more musical subs around. And hits nicely down low. There's tons of reviews at AVS in the DIY section.

When I get the upgrade itch at some point (probably in a year or two), all I plan on doing is adding a second rythmik kit.

Here's a small pic of mine