I'm sure you guys are getting tired of all the SVS threads, so I apologize for making yet another . You must excuse me for I'm torn over which model to pick! I already emailed TOM from SVS and he was very helpful, but I didn't want to bother him further as I'm sure he's a very busy man. You see, I originally was considering the CS-Ultra, but it seems a bit too expensive and now I'm not too sure if it's worth the added costs considering dual 20-39's seem to offer greater performance for less. I don't want to spend much over $1000, so now I'm looking into the regular line of SVS subs. Looking at the response charts provided at the SVS site, it appeared to me that 16-46 has very similar performance to that of the 20-39, especially above the 25hz range, and the 25-31 has a pretty significant advantage over the latter 2 over 30hz! Does this mean that the 25-31 will have greater impact (hit harder) at 30+ frequencies? I don't see why, being this is their cheapest model. If so, dual 25-31 might be the way to go! Now I'm more than ever stuck between choosing! What do you guys suggest I get? Here is some info that may help: - Will be used for 80% music, 20% movies - Mainly listen to Rock, Classical, Dance/House/Techno - Room is carpeted and approximately 10' x 11' x 8.5' (I realize any SVS would do in such a small room, but I would like to future-proof myself in the case that I should move) - I'm a notorious BASS-HEAD. I want to be able to FEEL my insides HURT! Now I figure most of the material I will be encountering will hardly ever if ever hit below 20hz, so the added extension of the Ultra and 16-46 may be uncessary. Greater ouput at each frequency is what I'm looking for... I'm talking foundation wrecking bass here! That in mind, does the 25-31 REALLY have greater output at 30+ frequencies as the response chart suggests?