I wanted to start this for us owners which have been lurking and getting help from all of the similar thread such as the 01/03 and the 05/07 and the *OFFICIAL* New 2009 Pioneer Elite A/V Receivers thread with models. I don't know how to link all the previous questions/answers and comments(posts) from those regarding the 21 and 23, but there are several buried in those threads. Maybe going forward all the info will be here. I own the 23 which is nicely replacing a Denon 2808ci which processed for a B & K 200x5 amp. With the 23 and the MCACC processing, I have as good as if not better sound and more functionality. Even ditched the amp! I use it as a 5.1 and power an A/V zone 2 and soon an audio zone 3. My only issue has been an HDMI glitch where the AVR won't recognize PCM after switching from a DD channel on Directv HDDVR(and vice versa) workaround has been setting the DVR to output PCM only. I could also hook up an digital in, but haven't yet. Hopefully some of the owners of the previous Elite models will follow and help us with our issues.