I, too, used to think that it was extremely difficult to integrate a sub in a high-end two-channel system. However, the JL Audio F113 has shown me how easy and effective it can be. It is the first sub that I've heard that is fast enough to keep up with my B&W 800's. The main improvement is a sense of scale and filling in the soundstage. Since I don't have any neighbors to offend, there are no compromises at all with this setup.
