ok, I want to build a box for the 2 brahma 15's I have on order over my thanksgiving break...I have made sealed boxes before but never ported, and don't know how to get winisdpro to give me the port length etc. I was wondering if anyone can either tell me how to get winisd to do thiscoulf tell me the dimensions for a port for the 2 15's tuned to 28hz. Also, any opinions on pvc vs slot ports? And i 28 hz good for sql?