Best Subwoofer for Quad 2805 under $5k


Looking for musical subwoofer for 2 channel listening (Not home theatre!) that has the speed and finesse to keep up with Quad 2805s. Heard the Wilson Benesch Torus is an amazing combination, but don't want to spend $13k.
Thinking about the REL Gibralter G2 (carbon fiber driver) or the JL Audio Fathom f112. Has anybody tried these subs with the Quads? Any other thoughts?
vitman2020
The problem is not the subs but the room. Hence use multiple small subs and dsp room eq like the DSPeaker 8033.
Having used a variety of subwoofers (many named above) with Quads ranging from the 57's to the ESL-63 to my current 2805's, nothing comes close to the Celestion 6000 subs. They are true dipoles and extremely fast. They go low enough for me, especially with the 2805's. I have always positioned them next to my Quads (on the inside/side) rather than putting my Quads on top which really doesn't work well with the larger Quads. Not sure how available they are and they're really heavy and so shipping costs would be high, although worth it!
The REL equals Musicality. The JL Audio equals Punch. That's it in a nutshell.


Matt M

The unique GR Research/Rythmik Servo-Feedback OB/Dipole Sub continues to be ignored by all but the hippest audiophiles. It is absolutely, and by a country mile, the best subwoofer in the world for use with any and all dipole loudspeakers.

The reasons for it’s superiority are many, in terms of both it’s inherent design and how it loads the room, which is the same as dipole speakers. Read all about it on GR Research’s AudioCircle Forum. $1500 for a pair of the sub kits, plus another $500 for the H-frames the kit is installed in. Easy to assemble (not much harder than Ikea furniture), finish (paint or veneer) to taste.