I tried to redo my box so it can be deeper but it sounds like ****.
I have 2 12l5s sharing the same port. The problem comes when is plug in the second sub 1 sub hooked up plays fine deep and loud but as soon as I plug in the other it sound like if the speakers were playing in free air. they spec are 5.4 cu ft turned to 35 the dimension are:40'' wide 22.5 tall 13.75 top die. 19.75 bottom but is in a s-10 so there is a bump 3.5 up 9 wide. the port is 7.25 x 8.25 L shape 11 down 9 straight