Being a member of the Forum for the past few years I thought it time to purchase the 25-31 CS+ from SVS and am I glad I did. > I found the crew and Tom V over at SVS very helpful and discreet "I can be a very naughty 43 year old boy when it comes to bass" down to the last detail and if I were to boil there service and product down to two words I would come up with (Honor) and (quality)........ > I will admit to being the proud owner of a duel stacked Vel ct-150 con-fig and what I was really looking for was another bass option not so much of a upgrade. I have a corner close to seating that I decided to free up and place the CS+....But First! > When the brown van arrived I slide the Vel "I sold the other recently" out and the SVS in. I then proceeded to hook it up to my QSC 1450 amp and plug in the POD RACE. MMMMMMM....OK Steve lets calibrate (Thnx Geoff) it only takes a minute for a quickie. WOW! I knew right away that this was one formidable sub. Just for the sake of it I decided to see what I could do on the first Fly-By scene in STAR WARS II calibrated to 85-86 on the dgtl. What I came up with was 109--110 at -5 and as a comparison I could realize 110---111 with my duel stack Vels at -0 and that was there limit. This is basically a 30Hz scene to, so as the freq goes lower the CS+ keeps pulling away farther. This was done in my leaky R-F corner in my 24' X 12' HT with 10' ceilings. > As I have continued to view this past week the CS+ has impressed me all the more. SPL is only one good aspect of this sub. The quality of bass that comes out of this 12" driver is absolutely incredible. It makes my system sound like a million bucks and no I wont give it up Tom. This sub is here to stay. I should mention I did try the duel CS+--Vel stacked approach and that did not work out at all. What SVS has brought to my table should not be compromised. > With the CS+ on over in the back corner close to seating it has unveiled itself to a even fuller degree. IMO this sub has a whole lot of give and if you decide to run it on the hot side, chances are you will just get more of a good thing. This is definitely not a boomy sub. I have brought it up to a +6 db cal in both corners and with it on its side and in all circumstances it has performed beyond any of my expectations. A flat to +3 calibration is my preference though. With correction this is plenty imo. > This is one incredible sub that deserves all the attention it gets imo (Period). I know it has all been said before many times and allot better than my ability permits/ But hey', I need to say it to. > Thank you Tom V for your attentive help concerning this project and I will wear the shirts proudly.