I just stumbled across this while looking for answers for someone who wanted to inquire about servo subs. You may remember that Rythmik used to use a rather generic-looking 12" driver that looked a lot like the older Dayton Titanics. The new driver is a real beauty, with a dark-gray one-piece aluminum cone. I believe that this driver is designed and built for Rhythmik Audio by AE Speakers. It looks like the same sticker that is on all AE Speakers magnet assemblies is on this one. However, I could be wrong. That looks like a driver I'd be proud to have in my home theater, even if it weren't a servo subwoofer. Money's a little tight for me right now, though, and at $170, the cost of admission is a little high for a raw driver. However, the new Rythmik driver looks to be a very good option for high-fidelity bass that is mostly music-oriented, as it features an aluminum shorting ring for lowering inductance, and those aluminum cones always sound excellent. 350w RMS. 15mm Xmax. The potential deal-breaker for use with amps other than the Rythmik amps is that the driver has a nominal impedance of 2.8 ohms. While it would be weird to try and use this in any old DIY project, the new Rhythmik Audio driver should give the audio DIYer a good reason to consider trying a DirectServo kit. I'm still looking forward to the AE Speakers AV12 for my own use, though, as I already have a box that uses it.