Rythmik subwoofer


I am new to this forum and looking for opinions on moderate priced subwoofers to pair with Magnepan 1.6 speakers. I am presently testing Rythmik L12 (entry level) subs. These are servo subs and sell for $535 each. Does anyone have experience with Rythmik? Also considering SVS subs. Priorities are sound, price, size and looks ( need to keep wife happy).
 Thanks 
elf1
elf1
At it's price, the e110 SHOULD be better than Rythmik's entry level sub! That's like comparing a Toyota Corolla to a BMW 3-series.
Thanks for all the comments, I certainly appreciate the opinions. I have no doubt the sub brands mentioned are very good. How good is the question? Since I have budget constraints I need to go with best-bang-for the buck.  Will the Boom Boom sound of the JL e110 sound three times better the the Rythmik? I guess I will have to drive my Toyota for awhile longer.
 Thanks again.
Check out HSU research. Internet direct sales, NOT cost prohibitive, well made, quite acclaimed, integrate very well with my horn loaded Klipsch palladium, seamlessly in fact.

elf, if and when you want to spend more to get more, keep in mind that above a certain level, room integration will have more of an effect than the sub(s) it(them)selves. If you go to the Rythmik section in the AVS Forum, there are quite a few comments by Magneplanar speaker owners telling others about the pairing of Rythmik subs and those speakers. The F12 is a common choice with Maggies, F15 for bigger rooms. But the really interesting discussions take place on the GR Research Audio Circle Forum, in the threads relating to the unique OB/Dipole Sub created in a collaboration between Brian Ding of Rythmik and Danny Richie of GR Research. Any questions regarding the OB sub should be directed toward Danny rather than Brian.

A pair of the OB/Dipole Sub kits (each kit consists of two 12" woofers made expressly for OB use, and a plate amp with which to drive them. The amp also contains the Rythmik servo-feedback circuitry that controls the woofers, and an OB cancellation-compensating shelving circuit.) runs about $1500, and a pair of flat-pack H-frames in which to install the woofers and plate amp around $500. Assembling the H-frames is not much harder than an Ikea dresser, after you have painted or veneered (or have it done for you, as did Audiogon member kennythekey---see his Virtual System to see pics of the subs) them. THE sub for planars, as well as other high-performance loudspeakers.