ok guys. i dont think i have ever posted a question in here, but here it goes. im going to be replacing my sub in summer, and im looking around ahead of time. i am a dealer, and i sell velodyne. i have a deftech supercube reference. on the used market, it fetches around $1,100. so, i have at least that much in "free money". i get velodyne for 65% off retail. since i am a dealer, i was planning on getting something now, keeping it for a year (policy), and selling it at a profit and moving on to the next best thing. i WAS thinking of going with SVS (getting a couple of them), but i have though, why wait? i want to stay around $1,500 or so. i am currently looking at either a Velodyne DD-18, or a pair of the new HGS-15x's. both are servo controlled, 1% claimed (and tested) distortion and would be a nice sub for just about anyone. for SVS, i guess my options are a PC Ultra (i could do a passive and get a huge amp too), or maybe a pair of PC+'s. i like dual subs because each sub has to work half as hard. but am open. i could also do the PB2+. size isnt an issue, weight isnt an issue, placement isnt an issue, and i have a house, so as loud as i can go, i will. i do have to keep in mind, that if i get a pair of SVS's, i wont be able to upgrade really. in a year, the velodyne's could be sold for twice what i paid, and i can once again upgrade for free. SO, question of the day, would any SVS offering in that price range be significantly better than a DD-18 or a pair of HGS-15x's?