If it were me and music or realism is of value i would go with rythmik subwoofers. The only thing I like bout the svs is the piano black finish is only a $100 up charge (rythmiks is actually nicer but costs like almost $200 to get the piano black); their app is pretty dope and truly is convenient, especially for movies n general listening, and I personally am a fan of the sb3000’s front woofer protective grill (metal shield is more like it). It doesn’t attach magnetically unfortunately but neither does rythmik.
But when it comes to sound reproduction, the 12 inch rythmik or 15 or 18 inch will decimate the svs offering(s) in imo every category that is audible and that is reproducing sounds that truly integrate and not sabotage. Also, the bottom octave filter design and approach is so much more no BS and is predictable and consistent. The svs subwoofer will be less consistent as far as getting it to sound right. Imho it’s probably due to the direct servo patented technology that’s exclusively implemented in the rythmik subs, which from my experience is the real deal and not an exaggeration or premeditated misleading marketing bs.
I has the sb1000 and the sb3000. I had dual sb3000’s actually. The Bluetooth app is neat at first and stays on my good side because of the obvious conveniences it provides. However, the rythmik is built better, uses better quality components internally, uses respected measured performance plate amps that have lower thd and noise and higher snr., and pending on which model you get, they even use hypex based plate amps. Just goto rythmik websjte, they mention in one of their faq sections bout how the f12se subwoofer performs many db louder than the competitor (pretty sure they’re referring to a sealed svs subwoofer) and the difference between the F18 vs the “competitor/svs” all I know was, the difference was over 10db in playback SPL