hey everyone, I have narrowed down the choice between the two mentioned models. Upon closer inspection the sub has passed the all important WAF. (although I dont think she realizes the actual size ) The sub will be going in the den which is pretty small (2400 cubic feet) with three small archways leading to different rooms. Is the extra extention the 16-46PC+ noticible in a room this size versus its overall loss of total SPL? I guess what Im saying at what point am I trading too much of one thing for another. I want to FEEL the bass that ive never felt before, yet I want it LOUD too. I know many of you have the best of both worlds by having dual SVS's. My $1000 budget rules this out at the moment. I would like to know how many of you decided between the two models. My point of reference is my deftec prosub 100. While it worked fine in an apartment a couple of years ago, it is seriously lacking in a house where I like to let the volume loose. Hometheater mag tested my sub at something like 93db at 30HZ and dropping to 82db at 20HZ ..... does this mean that if the response of an SVS is over 20db higher at 20HZ that it is roughly 4 TIMES as loud as my sub at 20HZ? Any help would be greatly appriciated.