Aerial CC3. Provides environment control for positioning above below monitor, or on stand (prefered), and a program adjustment for midrange cut/boost that can also serve to intergrate the center with your main speakers. Ultimately though, you would want consistent or identical speakers for good HT. If your main focus is on 2 channel, the Aerial gets you more dialogue, detail, and authority than anything else I've heard, and blends well with a variety of other speakers.