What is the best subwoofer you have ever heard?

The best subs that I've actually heard in a demo are the JL Fathom and the Revel B15. Tight, articulate, fast, and authoritative bass. I liked it so much I got the Revel. The Fathom goes deeper than the Revel and if I had the cash would probably be the only other sub I'd go for. The RELs are the other brand that I would include in that as part of my top three.

I've previously owned Martin Logan, REL, and also auditioned (but not owned) Sunfire.

The ones that have been best set up and integrated into the rest of the system and the room.

Has anyone heard any of these DIY subs from Rythmik?

http://www.rythmikaudio.com/products.html

They look intriguing...

To Matjet - I have had a Paradigm SUB1 for about 2.5 months. It's integrated with a full seven-panel Magnepan LCR set up (3.7s, DWMs, tri-center). I've set it up to run with both music and for the LFE. The SUB1 is fast enough to keep up with the Maggies. I compated the SUB1 with the newest digital B&W and a JL F113. The F113 was my initial target (replacing a very good Paradigm Seismic 12) but after listening to all three at the dealer (talk about a physical workout moving subs around) I felt that the hexagonal design would help reduce some of the room effects, the total surface area provided the oomph I was looking for, and the Perfect Bass Kit (or whatever they call it) worked very well (prior to a second run-through with my Meridian g61r room correction tha manages only the <250Hz signals). If cost were truly no object I might go for a JL Gotham, but I've found that unless the room is really large the Gotham (and the Humungous Wilson Audio sub) tend to overpower the music and detract from movies.

To borrow from Dennis Miller, "But that's just my opinion, I could be wrong."...

gordon

Another vote for REL.