Seems to be a common issue that many are coming across when attempting to feed 5.1 analog outputs from a HD-DVD/Blu-ray player into a conventional AV amp in order to access lossless soundtracks in the absence of a HDMI connection. See here for an example.
http://www.avforums.com/forums/showthread.php?t=456161Given that it affects DD and DTS, it probably affected normal DVD players using analog outputs in just the same way except nobody really noticed as we all used the s/pdif digital connection between player and amp which compensates (in the processor) for this 10db difference automatically.
The problem, I suppose, is that when using analog connections the processor has no way of knowing whether the original audio source is coming from multichannel music, eg DVD-A, or from a DD/DTS movie soundtrack.
According to the link above, it looks like Pioneer, Denon, etc are now providing a 10db boost option on the LFE channel of their amps due it becoming more of an issue than it used to be. Now if this was on a 'per-input' basis, it could be switched on for the analog inputs only and you would then just have to remember to switch it off when playing a multichannel music source through this input.
Allan
