Thatspiveydude

Hey guys! I just got a sa-12 in my 4 door Chevy cobalt on a mats 1500.2 amp and was wondering of anyone out there had a great box spec that they use for the sun or would sound good in a cobalt. I would like it ported. If someone could help it would be much appreciated!!

Hey. I'm new to Smd so I'm sorry if there is already a thread on this topic. It is my first time building a box for a sub and I'm quite clueless. It is for a sundown audio sa-12 and needs to be 2 cubic foot and tuned to 35hz. The only problem I am having with the box is displacement of the port and I have no idea how to calculate it! So if anyone can give me the specs they used on their sa-12 or tell me how exactly to calculate port displacement that would be great!!