The VSX-92THX has got a lot going for it over the 2309. The VSX has multi channel preouts, 12v triggers, SACD over HDMI, while the Denon does not. If these issues are a concern for you, the choice is simple. The 2309 seems to be a lot cheaper than the VSX. If that's a concern, the choice is also simple. If you want to play those RS6 loud in a large room, I might be a little concerned about the amp in the 2309, based on my experience driving 6 ohm speakers with my 2307. I ended up getting a separate amp but this would not be an option with the 2309 due to the lack of preouts.