Originally Posted by ditcin
I have a D2 for a few months now and just recently I found that there isn't any sound coming from the center channel during mono or prologic (2.0) films. Sound is only coming from the front left and right.
I'm only have my OPPO connected via HDMI.
This could be perfectly normal. Many Mono films are actually put on the DVD as stereo with the same audio being sent to the LF and RF speaker channels. I.e., there's no sound coming in on the Center speaker channel. And the audio steering of voice frequencies to the Center channel in the Anthem may be minimal depending on the audio mode you have selected (and any adjustments you have made to its default settings) and the actual program content.
To get the Anthem to mix the LF and RF inputs (when listening to 2-channel source content) and produce a single speaker output to the Center speaker channel you need to select the Mono audio mode (or Mono Academy if listening to an old Mono movie that needs the extra high frequency filtering applied). This is a matter of taste of course. If you are getting sound you like using the LF and RF speakers then you can leave it that way too.
If you have still believe you are missing something on the Center speaker, then the next thing to do is to double check that you haven't actually set any of the "temporary" audio level adjustments with your remote. These are remembered on a per-source and per-audio-input-style basis, so it is easy to think you have cleared a setting you have played with when in fact you cleared it for a different source or audio input style.
To clear ALL of the "temporary" settings at once, do this:
* Go to Setup / Save & Restore Settings
* Save User Settings
* Restore Factory Settings (you may lose video at this point but you can continue using the Front Panel display)
* Restore User Settings (video should be back now)
The "temporary" audio level settings aren't saved so this clears them all back to their default state.
Please also note that the audio modes available at any given moment depend not only on the style of the incoming audio, but also whether or not you have THX post processing turned on. Mono and Mono Academy modes are not available with THX post processing. If you don't see Mono or Mono Academy as available options when you cycle through the audio modes, then press the THX button and use the up or down arrow to toggle THX post processing off.