Hi Phill, I have visited your site before, and noticed you upgraded from the N-series to the S-series. I currently have the N-Center, N38's (towers), old Advent mini's for surrounds, and PB10 sub all powered by an Onkyo 595 (well, not the sub), and calibrated using VE and the standard Radio Shack sound meter. Right now I'm thinking the weak link in my system is my N-Center. I'd like to know if there was a difference going from the N-center to the S-center? Also, is the S-Center timbre matched to the N's? Or will I need to upgrade my mains as well? I noticed in one of your posts, you had the N-center frequecy responce starting at 89Hz? Well, I'm not very knowledgable on the technical side of HT, but my Onkyo 595's crossover is at 80Mhz when I set the speakers to small... so does this mean my system is weak from 81 to 88Mhz? I've noticed on mono sources, that if I switched from my center to stereo, so sound is routed to my N38's, the sound is deeper and fuller. No I realize I'm comparing a tower to a center channel, but the towers are set to small as well. I'd like to get some "fuller" sound from my center. Will the S-center help me? Thanks in advance! Mike D.