Subwoofer - thoughts on Rythmic F12

If I couldn’t afford something like JL Labs and could afford a little more than SVS then Rhythmic would be at the top of my list, and the F12 more specifically.  Excellent technology, build quality, and performance, and the only downside is that I don’t think they offer integration software but still wouldn’t be a dealbreaker for me because they’re so good.  I’d definitely get two at some point.  FWIW, and best of luck. 

Agree on Rythmik F12. I’m using a pair of them.

One thing to be aware of is that the F12 is available with your choice of an aluminum coned-woofer (the F12), and with a paper coned one (the F12G, the "G" to signify GR Research, whose Danny Richie collaborates with Rythmik Audio’s Brian Ding).

Choosing between the aluminum and paper cone may be dependent upon whether you want to prioritize music, or movies. Rythmik Audio’s Brian Ding prefers aluminum cones for their greater stiffness (compared with paper)---less cone "flexing", Danny Richie the paper cone for it’s more "natural" (he feels) sound when reproducing music, especially that played on acoustic instruments.

Either one will be a worthwhile upgrade from the SVS SB-12.

I'll echo the comments from @bdp24 but with a little more enthusiasm because my upgrade was actually from an SVS SB-2000 to a Rythmik F12G. The lighter weight paper cone with the servo motor tech is extremely fast and articulate, all the way down into the teens hz range. It can reveal sub bass textures like a very high end floorstanding speaker. It's faster than the aluminum cone version, and that's why I went with it. It moves less air, but I greatly prioritize music quality over movie soundtrack quality. I use a large gauge solid OCC silver power cable with it, and OCC copper interconnects.

Also, read up on or watch the video of Danny describing the numerous options beyond the ordinary on the PEQ amp. You may not think you'll want them until you realize you do.