JL Gotham, Seaton HP, Funk Audio 18.2 or ?

I've heard twin Fathom f212s mated with a pair of Magneplanar 20.1s and it was pretty awesome and a totally seamless integration.

Tone Publications has a review of twin Gotham G213s and it's hard to imagine doing better. The issue starts on page 130 of the downloadable ToneAudio Issue 26.

Also, I agree with what you're doing. I think picking the best subs you can afford is an excellent way to begin a system, because the subs determine the system's ultimate bass extension and dynamics and the maximum capability to energize and pressurize the listening area. The better the subs, the faster and deeper they are, and the more they determine the range of speakers that make the best match for the space and the capabilities of the subs.

If it was up to me I would seriously consider the M&K X15 Plus, or even better, the Perlisten D215s.  These are the only THX Dominus certified subs out there.  Dominus means 95 DB continuous and 115 DB peaks, in a 6.500 cubic foot room with a 20 feet listening distance.  The M&K X15 Plus is $5,999 each, while the Perlisten is $8,999 each.  

Best

Dunlavy V's nice.

At this level every model mentioned will provide more than enough low frequency gain apart from your main speakers. 

Be advised JL Audio's onboard signal processing is done automatically only unless you augment the processing with their CR-1 and still lacks any remote control.

What ever you choose I've found signal precessing with presets and remote control are absolutly required, but that's me. All the best.

 

Old thread from 2014. Haven't had the privilege to listen to any of the above subwoofers, but I would give plasma over the course of a couple of years to own one of the Funk Audio subs.