[Mattk11]

I originally was going to build two subs with Soundsplinter 18's but I am having trouble with box sizes.

I am really limited to size due to clearance behind my screen wall.

I have been doing some reading on this forum and others and see that the 15" TC2000 driver is well suited for LLT design.

I want the best sounding sub I can build with a ~16Hz tune. I figured out that my max box size can be as large as 16" deep (this dimension is fixed and will have a double wall of MDF on the front baffle) x up to 40" wide X up to 40" tall (height is dictated by the fact I want to stack two). These are outside dimensions. This would give me plenty of clearance behind my screen. I have read a couple build threads that suggest box size of 320-350 liters.

Subs will be used 100% for Home Theater. I will build two boxes, both will be powered by a Crown CE4000 wired to 2800w at 4 ohms mono and equalized by an SMS-1.

Please tell me the ideal internal size and ideal port size and length for a ~16 Hz tune.

Thanks
Matt