On my DCC2 the volume level is "input specific" and retained for that selection. For example, if you have the analog input set to "99" for the HT pass through, when you switch to a digital input, the volume also changes to the last value selected for that digital input. There really is no danger is setting the DCC2 input to "99" for HT pass through and accidentally blowing your system up if you switched to a digital input on the DCC2. Even the digital inputs themselves retain a separate volume level for each input- AES/EBU, Coax, Fiber, etc.
What I plan to do is set my levels in my HT processor for the rest of the system and then raise the volume on the DCC2 until the main/front L&R levels are the same as the surround channels. Once adjusted, I'll just leave that volume setting on the DCC2 to that value, and everytime I select the analog input it will be set for me. This way I keep all the internal levels on my HT processor the same.
I hope this helps.
What I plan to do is set my levels in my HT processor for the rest of the system and then raise the volume on the DCC2 until the main/front L&R levels are the same as the surround channels. Once adjusted, I'll just leave that volume setting on the DCC2 to that value, and everytime I select the analog input it will be set for me. This way I keep all the internal levels on my HT processor the same.
I hope this helps.