I have twin TC2K 15" ported subs (11 cf, 8" port, just finished recently) and I have an IB array (4 Q18s).
It takes less power to power my IB to High SPL levels then it does to power my LLTs.
My LLTs are tuned to 16 Hz, my IB can hit under 10 Hz easily.
My LLT build took a lot more wood (almost $200), lot more teadious effort, rounding sanding and so on, about 5x the amount of time.....IB array, $50, 4 routed holes, extra bracing in the attic best Sub system I own.
BTW, This thread asked about Sealed vs IB but Steve always has to chime in with his LLT stuff...its like he needs to convince himself daily that his design are better....blah...No one wants HUGE SILOs!!! They are so 80s!
