Sub to complement KEF LS50s: SVS vs. Rythmik


Hi all. I'm considering adding a subwoofer to my current set up: Bluesound NODE2i (Tidal MQA) to Cronus Magnum II to KEF LS50s. I'd like to supplement the KEF's on the lower ranges.

I'm considering 2 subs and have located a few deals:

  1. Salk Sound Rythmik F12 in white for ~$1100 
  2. SVS SB4000 for ~$1200

I particularly like the room control on the SB4000, but am not wed to it. Any thoughts between the two? Anything else you'd recommend in this price range?

A few other notes: room is 12 x 30 feet, with a wall of windows (NYC condo). Acoustic paneling is next! Likely don't need all the size/wattage that either of these subs provide. Perhaps getting a MartinLogan "X" with the room correction could suffice, but would rather buy top notch and be done with it.

I'll utilize this for 75% music / 25% movies. Music tends to be bluesrock/jam bands/jazz

jdtalv
….."I suggest we all agree on this point and dispense with the typical forum phase of having a series of posts from various individuals that recommend the OP use the exact same brand and model sub that they purchased and use in their systems."....

But this is what the OP is asking for, which of the two subs he is interested in is the best, preferably from someone who has heard both.  It is pretty intuitive that the more subs you use the fuller your bass will be.  But as mentioned above, if your set up is in your family or living room having multiple subs may not be possible (although I have two).
You could try two Gallo Acoustics TR-3D subwoofers like I do with the LS50s (I actually have the older versions). Also live in a NYC apartment about the same size, and they fill the room for music and movies. They have a small footprint and aesthetics that don’t look bad with the speakers. I haven’t tried room correction just setting them to crossover at 70-50 hz. Have the two shooting from the front, but I think it sounds best with one in the front and one in the back. Hope this helps.
has anybody tried small.. like 8 inch or 6 inch subwoofers? Is their such a thing with proper extension and frequency response?
I’m currently using LS50 and two SVS SB-16 Ultra and I have been SUPER impressed with the SVS subs.  The only down side I can mention is size and weight.  Besides that, they integrate perfectly with the LS50 speakers.  The sound stage is wide and open with incredible 3D imaging.  Of course, most of the time with music the subs are invisible completely and barely moving.  I’m using 70hz crossover.  Most importantly, I recommend two subs versus one for all reasons mentioned above.  Good luck!