Separates or Receiver to modernize home theater?

one more vote to keep your present system and run your hdmi straight to the tv unless you absolutely have to have an on-screen function from your preamp (in which case, you could still just switch between inputs on the tv for the pre and the source, but i realize that gets annoying fast).

i tried hdmi switching and i could notice a degredation in picture quality and stability. i am anal about picture, though, so factor that in.

Just to clarify the on screen info issue - HDMI from the Oppo to the TV will carry video only, including onscreen info from the Oppo.
Where you loose is onscreen info from the Anthem. To get it, you need to run a separate video cable (of any quality) from the Anthem to the TV. Then you just have to switch inputs to see the Anthem info. (which is only really relevant when setting up).

Just means switching inputs on the TV to watch TV and movies, rather than routing everything through the Anthem and having only one input on the TV. Many argue multi-channel carries a better audio signal than HDMI anyway. Again, just a convenience issue.

Here's a little additional information that might give some insight into why an AVS forum might recommend going with a receiver over seperates.

I have an Integra 50.1 reciever that includes Audyssey as a feature. Having my blu-ray player connected via HDMI give the receiver maximum control over the signal processing. I have multi-channel inputs available, but if I were to use the blu-ray player to decode the signal and output an analog signal to the receiver I'm fairly certain that I'd hear a loss in sound quality. One reason would be that the analog signal might go through an A/D to D/A conversion to allow the receiver process the sound and also I'm not sure how much control Audyssey has on the way the digital signal is decoded in the receiver.

It's possible that your components could sound better than any receiver can no matter how it's hooked up. I'm not sure that using analog connections is really an apples to apples comparison when talking about a receiver vs. seperates.

One would expect an AVS forum to recommend a receiver almost as much as one should expect the opposite recommendation on this forum where receivers are deemed Mid Fi at best.

I think that if you use a receiver with Audyssey built in you'll get the best possible home theater sound, but might not have quite the same sound quality for stereo listening.

Personally, I like the idea of having a receiver to process the home theater stuff that is connected to a seperate amplifier for the main channels in a home theater bypass. If that same amplifier had a 2nd set of inputs you could connect your stereo equipment direct to the amplifier and bypass the receiver. The system would only share the amplifier and main speakers.

I would suggest considering selling the AVM 20 and replacing it with a receiver that is capable of decoding all the latest formats and include Audyssey or something similar and also a dedicated 2 channel amplifier for stereo listening. I think your amplifier would allow for both components to be connected.

Maybe someone will laugh at me and provide a reason as to why this is way off the mark. I could be way off, but something to think about and discuss.

I would vote to keep your system as is and use the Oppo analoge 5.1 outputs. You can always upgrade the analoge 5.1 outputs from someone like Modwright now or later on if you want too.

The value of receivers and surround sound processors always drop like a rock. You can always wait a couple of years and pick up one at a good price.

This way you do not have to change your setup.

Enjoy!