Thanks for the info everyone, I understand the reasoning behind 2 subs, and agree completely, there is still the wife factor to be considered. It is one thing shakeing everything in the room, but it is another hiding or blending the subs that are doing it. I still don't think my question was answered. Has anyone done a side by side comparison or is there a review of a comparison between LMF-1 and SVS PB1-ISD. Once I have decided between the Outlaw and the SVS, I am going to try 1 sub, If I am not happy with the results I am going to Add a second. 2 LMF-1 or 1 SVS PB2-ISD. I think both of these subs have a lot to offer at this price point. Once again i appreciate everyones input.