Dear Horn blower, Nice setup but I am bias since mine is similar. I have B&W 805's , B&K amps, and Theta electronics. A sub is a must have for great home theater movies and DVD music. I bought the Rel Stadium after trying all different models. I would buy it again. When it comes to dedicated 2 channel audio I think your better off with a single pair of full range speakers or your speakers and no sub at all. Even with the complex crossovers , time delay, and phase inverters built into the Theta processors I still felt that the N 805's sound best alone without a sub. One thing you can do is to move the speakers closer to the wall and this seems to help the bass. If that does not work well than a seperate pair of full range speakers is your best solution. In fact if you can swing it a dedicated 2 channel music only setup works best. Happy listening