I had an opportunity this evening to unbox my dual SVS 20's and Samson amp. Very nice stuff. You can see white squares on the tube underneath the black sock but that doesn't matter considering where I placed the subs. Out of site. I had been complaining that I wasn't satisfied with my Dharman after shifting its location all over my movie room and never getting anything substantial out of it. I figured it was the sub. This evening I moved the sub to an area of the room I had preferred to not put it and found that to be the best spot. It's behind a wet bar in the back of the room and it's sort of musty back there. The back wall was leaking but I think I fixed it this summer when I dug up the outside and filled it in. We'll see... The Dharman seemed to come to life finally and it appeared that I may have made a mistake by ordering dual SVS's. The Dharman delivered -my couch shook a little and I felt a ever so slight tickle in my hair. The Dharman is easy to bottom out. It doesn't take much so after several sub killer scenes I reduced the overall gain on the sub till it stopped popping. The bass output at that point seemed pretty good and I thought I was happy. It was certainly better than what I have previously gotten from it anywhere else in the room. I unplugged it and plugged in the SVS. After a few minutes of screwing around with the wiring and so forth I powered it and the Samson up. The single SVS made me queasy. I felt my clothes move and my hair was making me itch. I pushed it to the limits of where I wouldn't normally listen to it and it didn't bottom out. One scene in The Phantom Menace during the Pod Race the bass was so intense I felt as if I was dunked under water. The SVS pressurized the room! I did NOT expect that. So scene after scene including the ever so popular ones from The Haunting and U-571 I got intense bass with no bottoming. All the same scenes I tested the Dharman with and got mucho el bottom. I hooked up the second SVS and it was ridiculous. But I will get use to it! 2 SVS's can make your eyes rattle and your ass itch. I enjoyed the Dharman when I finally found a home for it but when I hooked up the SVS it pumped more. I apologize to Adire for the hassles. The return slip I got from them has an RA number of "The only jackass to return a Dharman". Not really... But if it did I would completely agree. I consider myself correct in my initial statements regarding the Dharman only because the SVS held out and held more powerfully in comparison. If we are talking about the performance of a 12" driver then the SVS driver is clearly better. If it's the design, box vs. cylinder then what? In any case, I'm glad I chose to get SVS because that was what I had planned to do last year when I was choosing and planning my new system. Both SVS and Adire are outstanding companies and deserve any and all business from whomever is willing to support them. With today's economy these guys deserve our business because they care and want to make us happy. Customer service is top notch by both guys, as we all know. We can't say that about the bigger commercial companies. Well, I'm off to go scratch my ass now.