Favorite Subwoofer

I have had different versions of Verity Speakers for years as my main speakers. My current main speakers are SarastroII's. When I purchased the subs I had Parsiful Encore.

I have had Aerial Acoustics Model SW12, it is fast and very nice sounding sub you can adjust volume and other settings with the remote it comes with also has LFE input. Ended up being just too large to have 2 in the front of the room.

Next 2 Rel StadiumIII's, size is large but could work with and again very nice sub also has LFE input. Was not fast enough for 2 channel IMO.

Now I have 2 JL Audio f113's, small footprint very very fast, easy to setup for 2 channel but had to add a crossover for LFE input. The best sounding sub for me to date.

I crossover at 35HZ as the front speakers have 11" woofers and do not need much help in 2 channel but they do load the room and are great for movies. I still have 1 of the Rel's and use it as a rear sub for movies.

Vandersteen 2Wq. Fast, tuneful and unobtrusive with my Magneplanar 1.6QRs.

A pair of Rythmik F-12s used (primarily) with Ohm 100s, but also Maggie MMGs on occasion. Room corrected and crossed digitally at my Onkyo pre-pro via Audyssey. Certainly the best subwoofer performance I've achieved. And I definitely have had several goes at it since my first shot (M&K sub with Kef Corelli mains) back in the '70s.

Wilson Benesch Torus Infrasonic Generators...Period!
Ultra fast,tonally rich,endlessly ajustable, cosmetically WAF,beautifully constructed,paired with Raidho D1.

HK-

I very highly endorse REL. These subwoofer(s) are very musical, easy to place and integrate into any system. Buy one new or used it will not matter, as, they are all outstanding!
Keep us posted on your buying decision. Happy Listening!