Originally Posted by drunkpenguin
Let me re-phrase that. It states Acoustic EQ modes are not used with dolby true HD, dolby digital plus, or DTS HD. So it's the eq mode that I don't use. If that is turned off audyssy isn't really doing anything for me right?
I would have to see the page explaining why EQ calibration is not run with Blu Ray audio ...doesn't make sense at all. Blu Ray's lossless audio codecs do nothing to alter the acoustics in your room. Whether you are playing a lossy soundtrack from a DVD or TrueHD encoded soundtrack from a Blu ray they both would (one assume) benefit from your receiver's Audyssey EQ. Depending on the physical makeup of your room, acoustic treatments etc...will depend on how much EQ is needed in conjunction with your receiver, speakers etc.
You may determine you prefer the sound of your room without the EQ activated...you are obviously the final judge. But if it benefits dvd soundtracks, it will benefit blu ray soundtracks as well.
Maybe someone will correct me, but I can't think of an exception to the rule.
On a related note, bass (typically) would be served most from EQ. Again, it's room, sub placement, acoustic treatments etc that play into the correct answer....but "generally" speaking EQ bass helps to tame peaks, nulls etc etc...creating a flatter response across your listening area. ie if your bass is bloated, you might not hear the full dynamic range of the soundtrack. Some confuse bloated bass with being impactful strong bass....one can have a tight strong bass without being bloated.
I'm sure others with more knowledge than me go flush out the details..