I have an TC Sounds LMS-R ultra 5400 18" sub. I love it and its super loud and accurate but I want 2 subs in my man cave to balance the sound out. I have the previous mentioned sub but probably cant get my hands on another one. Are there any options out there that would be as good or better than this sub. Size is not too much an issue since the subs will be behind my couches. But lets try to keep them to 9ft3 each. Any recommendations? Try to keep sub prices around $900 each. And I have a guy that will build my enclosures very well braced and with 1" MDF so no problem on the enclosures that's for sure!