JL Gotham F212 v2 vs ?

https://youtu.be/I4KPfVu3toU

Here’s a link to a YT video featuring 2 line arrays of the baby brother in the REL performance lineup which is the 510 and an introduction to the REL philosphy by John Hunter REL CEO.

REL lineup goes

Reference series
1. REL 25 Reference
2. G1 v2
Performance series
3. 212se
4. 812se
5. 510se

T series

Be sure to listen to the part of the Demo @ 10:45. It’s a quite impressive demonstration of the REL’s speed.

I have a single S5 SHO which was recently replaced by the 812se. It’s a fantastic performer and I would say the value champion in the REL lineup is the 812se. IMO 2 line arrays of the 812se would be incredible and give you much more all around performance than the single Gotham.

Paradigm Signature SUB 2...end game

REL 812 stereo pair, stereo quads, or six pack would blow away a Gotham.  
Paradigm Persona Sub is also incredible.  A pair of those would be ridiculous, but I think the 812 REL stacks would be your best bet.

Or you can get one of the -0.4db @ 7hz internet direct subs mentioned earlier and try to convince yourself you’re happy with the sound.  Then sign up on AVS Forum to complete your transformation and be sure to post several times daily because now you’re an audio knowledge god.

For two channel, there is no substitute for REL subs. As others have pointed out, a pair of S/812 would be the way to go.