Any feedback on Rythmik Audio Subwoofers?

I am looking for a new subwoofer to complement my Green Mountain Europa Speakers. Specifically want a music sub, not HT. Roy at GMA likes the Dayton 12 MkIII for a low price solution (since I can't afford his!).

Does anyone have experience with the Rythmik Audio sub's? How about with Direct Servo solutions?

Thanks in advance!

You might contact "Andy R" on the "Audio Asylum", "Planer Speakers". Just yesterday he reccomended those sub`s, He is very knowledgeble about audio/speakers.
This is a fantastic sub. I use one with the GR Research driver, and it is much tighter and faster than the $4000 velodyne dd15 that it replaced.
I own the 12" version and love it. I have a dual system, Audio & Theatre. I plan on buying a few more. I want to setup a stereo sub configuration as well as a couple extra for the theatre system.
I just Bought a Rythmik Audio Sub's. I bought 2 15" subs. I built 4cu. foot boxes to put them in. So far I am very pleased with the results. I would do it again if I had to. It's amazing to hear the difference. I have not found the words to describe what I hear, but it seems to be music and not noise.
I bought one of their 12" sub a month ago. I'm very happy with it since I can hear very well some clean, focussed and tight bass from the lower frequences under with no problem. Something I've been missing for so long. The 15 month old Velodyne sub had to go(sold out). I can't believe the difference this sub makes in my B&W 800 system.
This new guy packs up enough punch to knock out any competitor, no matter the price range.
And you can always return it within a month if you dare not liking it.
I purchased one of Tyler Acoustics DS12 subs; this using the Rhythmic A370-PEQ DirecServo amp and one of their drivers. I'd echo the comments from others above, as this sub is extraordinary not just for the price but compared to other quality subwoofers. Plenty of drive but very well controlled . . . . capable of very focused sound. In combo with Ty's D3M monitors it is a standout speaker system.

In my 30 x 40 x 12 high listening room, the single sub works just fine. So much so that my initial thought of having two subs is still that . . . a thought, with still no compelling reason to purchase the second.
I use a pair of Rythmik 12" subs in my music only system. Measured response in my room is flat to 30hz(technically, it's down app 2 or 3db)without EQ. I use a Velodyne SMS-1 sub controller to smooth a couple of room nodes and extend response to 25hz (-0db). This covers about 99.999% of all musical signal with impressive on-axis accuracy. These subs blend smoothly with my Ohm 100 or Maqgie SMG mains (I use the SMS-1 to optimize the x-over function) for a neutral balance, wide bandwidth system at a reasonable cost. The Rythmiks @ app $1500/PR. + sms-1 @ $450 + Ohm or Maggie $600-$1700/pr. make for -IMHO- a speaker system with an unusual combo of strengths at the $2500 to $3500 price point.

I'd note that the Rythmiks replaced a pair of smaller, similarly priced Velodyne SPLR 8 subs. The Velodynes were very good, punchy sounding subs, but the Rythmiks provide a "drier", more relaxed, more neutral sounding bottom end - to my ear. Not surprisingly, they also go much deeper/louder without the need for EQ.

There appears to be some other fine value subs out there (the 12" SVS models come to mind) at/near the same price point. I know they measure well, (test results suggest that the SVS might be even better than the Rythmiks for HT use) but I haven't actually heard them. OTOH, for music only, I can certainly recommend the Rythmiks very, very highly.

Good Luck

As a relatively recent owner of a GR Research/Rythmik Audio 12" sub, my comments would mimick Marty, Terra, and Boubi. I used to own the Europa's and feel this sub would work wonderfully. OBTW, it replaced a Vandy 2W.

How are these subs with the Magnapan 1.6 speakers or any of the Maggies? I am trying to decide between 2 of the F12SE or the new 10inch Emotivas. Any feedback will be appreciated.
I received two of the Rythmik F12SE subs about a month ago after much research and I am extremely happy with them. They are being used in two similar audio systems comprising HK990 amps (300 watts/channel) and Dynaudio X12/Audience 42 speakers. The Rythmiks sound blends beautifully with the Dynaudios, as if they were designed to for them. The bass is so tight that it does not distract from the overall musical presentation. It simply adds a new dimension to the music wasn't there before without any down sides. The only issue I have had is that a few recordings have very baldly engineered low frequencies which ruins an otherwise great recording. This is quite rare but does exist for some artists. I'm hoping to be able to find some software that will allow me to EQ down/out the low frequencies of those few recordings. Definatly not the subs fault.

Unfortunately I dont have experience with other subs to compare this to but I've been into audiophile gear for 30 years and know a good thing when I hear it, and the F12SE is a very good thing!!!

I have 2 F12 SE models pair with Magnepan 1.7. To say its a match made in heaven is an understatement. Tight and tuneful.
I use 2 15" Rythmik Audio subs, powered by 2 Rythmik audio amplifiers (370 PEQ). Excellent results.
I also use 2 more 370 PEQ amps on 2 12" subs in my Sinfonia speakers. Also works great.
Controls on these amps provide total control over bass response.

In my music only system, I have a pair of F-12G subs that perform very well. I found the Rythmik sub easy to integrate and does a nice job filling in the bottom end....
Great subs. I own 2 15HP with the 600w amps, great for music and HT. DIY boxes. Highly recommended.