I have a JL 12 w7, and have tried it in 2 different boxes. First I built a nice sealed fiberglass box (about 1.7 cu/ft) and it sounds pretty good, but the bass is kinda too loud and "boomy", and I dont feel it enough.
Second box. I had a old box for 2 12'' subs, I quickly modified it, ported, about 2 cu/ft tuned to about 30hz. Sub faces forward and 4'' round port faces up. So the low notes hit good, but everything else kinda is ''boomy'' and echoes through the car.
Its the frequencies around 50hz that are the most annoying, loud, and overpowering.
What I'm thinking of doing is sealing off the trunk, and putting sub and port forward. Kinda just hoping it sounds better and hits hard.
Anyone have any advice on how to get rid of the loud boomyness? I know the second box is a lil small and not perfect, but the sealed box gave me the same boomy sound, so I think im missing something here.