Aight well I was looking @ the pioneer premier's. The 10'' sub to be exact. They need between 0.35 ~ .7 cu. Ft. I went online and found a sub box calculator program. Click here Alright well I made a box, a triangular one and it came out to about 1.422 Ft3 This is 45'' long, 16'' high, Top depth 4'', bottom depth 7''. per side is about,-.75'' for 3/4'' MDF is 44.25'' so 22x16x4x7=.641 Ft3 Is there some place that I can get this made or what. I mean I could attempt to build a box this skinny, but I was wondering if they sell this box online. If not I got some cuttin to do.