Ive always had ported subs till the last year or so. Ported meaning, mass produced lower end stuff. JBL,AR,Yammaha, and the likes. Reason being, a lack of knowledge along with a limited budget. Always into sound and in the last 3-4 years sucked in fully to the world of HT. Started building subs as a way to test,learn, and experiment with things I was reading. I love powerfull clean bass. Ive come to the easy conclusion that I still know little in the world of low frequency production. I know from reading the bevy of post here, that well designed ported subs can and do sound as good as its sealed friends. I have built in the past, two ported sono subs and was for the most part happy. They where sold to a friend due to the better halfs complaints. I went from there to the DIY sealed subs. For nearly six months we have been listening to different sealed stuff I have built. I really like the sound of the latest sealed subs. Well I went to visit my old sono friends tonight. Watched UB-571 and did some music listening where they reside now. I must say I dont miss them a bit. Our equipment is similar and so is room size. I know its not apples to apples, but for HT the sonos rule. But when it comes to music, I favor the "sealed subs" big time. So many things play into the creation of one of these monster sonos, driver, tuneing, cabnit vol,port mach, and the like. Id like to try again with a top of the line driver. But first,I like to know this. Im wondering if you DYI sono guys really like your subs for music? Are there any proven designs with sonos that may seem to be better than others for music? What driver, what tuning,port size, what cab vol? I guess i want the best of both worlds. Good extension, limited hang,nice spl with relistic power-600 watts or less, and small foot-print 18" The better half has given me the ok for a new sono and we cant pass that up now can we.