Looking to build an Octo 18 sub setup for a large space. The room is very large and open to entire first floor. 17' ceilings throughout. I have tried a ported approach using JTR Captivators (2 passive subs) driven by a Crown K2, and while they were great for HT use, I didn't care for their musicality on some program material. I would like to try the multiple sealed 18" approach utilizing the Dayton HO-18. I wanted to do 2 cabinets with 4 forward facing drivers in each up front. Off of the rear sub output of my Yamaha RX-A3010 AVR I will run my 2 current DIY subs (each with a 12" & 15" Dayton Reference HF driver and a 15" PR) off of the Crown K2. I picked up two of the CV5000 amps to put 5000 watts (or whatever it really puts out) into each of the quad 18" cabinets. I was considering building a LT circuit for the new 18" sub cabs because of the possible lack of room gain from the large open area. Do I need to make that decision now in choosing a cabinet volume or would 3.5 cu. ft. per driver work regardless? Would 1250 watts per driver be enough to handle the demands of a moderate LT circuit (target F3 of 16-20 Hz) and would the driver have enough Xmax to make it work? Is this entire approach feasible?
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3/29/13 at 10:37am