i have a Sundown SA10d2 on a memphis PR600. Its in a 1.1ft^3 box tuned to 35 hertz but it seems to just be pushing a bunch of air and not really making bass. any suggestions??
Its under the back seat of a 2011 silverado. its sealed up well the frame is all mdf then i glassed the outside of the box to seal all the little holes because of the number of angles that i had to put in it to stuff that thing under the seat.