I've spent the last 2 days with my dual 16-46CS+ and S1000 setup. I very recently had been a proud owner of dual 16-46CS subs and the S700 amp. Here is my complete system for a reference: EAD Ovation-8 pre/pro Arcam FMJ DV27 DVD/CD player Bryston 4B-ST(mains amp) 3 Marantz MA6100 monos(center and surrounds) Samson S1000 stereo sub amp M&K S150 LCR M&K Surround 550s Dual 16-46CS+ subs. Room size 13x27x8(2800^ft)+ adjacent rooms >4000^ft So with a fairly similar setup as I had before, I wasn't expecting to be blown away like new SVS owners coming from a fairly common 8-12" powered sub, though I was when I got my first set of CS's(coming from M&K MX125s-no slouches). I did, however, expect to notice the increased output ability and power of the new trio, and this is exactly what I got. After calibrating with VE, my settings remained the same as they were with the old combo. With the Samson volume at full throttle, my processors sub level is 10dB down from my mains(75dB) to get a 78dB sub calibration for DD. I also have 7dB down for DTS and 1dB down for stereo music. I'm able to reserve up to 6 presets in my pre/pro. I ran through the usual suspects(Matrix-DD, TS2-DD, U-571-DTS, Titan A.E.-DTS&DD, Roy Orbison-DTS, Telarc Great Fantasy Adventure-CD, and Phantom Menace-DD). I was able to take the subs easily past where I could take the regular 46CSs and still no clipping indicator and/or sub bottoming. The big surprise was on The Great Fantasy Adventure CD. The leaflet warns of the few tracks that contain strong signals down to 5Hz and to be cautious of your playback level. I went straight to T-Rex. This was the first and only time I could hear and feel the bass energy BEFORE you actually hear the footsteps. The regular 46CSs could not produce this audibly. This is also the first time that my walls actually resonated too and it felt like I had little bugs inside my ears. Scary yet thrilling. I'm glad I put my dog to bed because he didn't look too good during the pod race scene. The Roy Orbison DVD sounded extremely accurate with a lot of finesse. I'm not much of an audiophile and I don't have too critical an ear when it comes to music, but I can find no faults with these subs in regards to accurate music reproduction. Now when you use these subs for DVDs, they are brawny, brutal, and just flat in your face tough. The only other high end and well regarded subs I have listened to are the M&K MX125 and MX5000, and the Aerial SW12 with an all Aerial set up at local dealers. There is no question that the SVSs are every bit as good as these subs and better in a few instances simply because of their awesome extension(speaking of the 46s). The 46CS+s do extend a bit lower than the regular 46CSs AND clearly with more output. Tom, Ron and the gang, you've again impressed me. Your initial offerings are still some of the best subs out there, but thanks for striving to up the bass ante yet again. And it goes without saying that all of us SVS owners, and even just the inquiries thank you very much for the kind and courteous service.