3.25 Cubic Ft Each 6.00 Total
Tuned to 32 Hz
Port is 2 x 20.5 x 27.75 (Note that because the port is on the angled face the end is also angled, also they combine for a 4 inch port within the middle of the box)
Port air velocity below 30 m/s.
TFM Graph included with roll off point. posted down below
might be close to 150 db.. i will try it out.. see how she does.
i could easily get another 3.5 k hit that magic 150db..
its all fun