What is the 3008Envy? The PC where your material is stored??
The
There:
Zones are links to zones on your 3008Envy. If you aren't going to play to them from you Id you can disable the DLNA controller function under the
Tools->Options->Media Network->Advanced on your Id.
Also, if you only using the Id to play material from your 3008Envy media server you might want to make sure that the
Tools->Options->Media Network->Client Options->Audio Image and Video conversions are disabled.
You shouldn't use a link to tie the zones together, what is your actual output device? The Id can output audio to any of the HDMI ports, the Analog port, or any USB DAC you might connect. If the Denon AVR is the desired output device just choose the hw:Card=PCH,Dev=3... option or the hdmi one.
Depending on your receiver it may need to be On when you first power up the Id.
One final thing, if you are using the Id in headless text mode you should use the option 3 from the main menu that initializes HDMI on start. If you are using GUI mode this is not necessary as it's done by default.