Yes - important point. FR is only part of the story.
Thanks for the clarification. I guess the headroom is a function of amplifier power. I have always made sure I have more than enough to give me all the headroom I can possibly need - I agree with you that it is important for dynamics in real content. I still can't see though why the OP has two graphs that look all but identical and yet hets such a disparity between the sounds.
Brilliant. Thanks for that Craig.
@SOWK - Just in case you're asking if the boom mic holder comes with a low profile boom mic stand like I suggested in a prior post, then the answer is no. You might want to consider investing a little more in something like this to provide greater flexibility with the Audyssey mic positioning as it threads directly into the Audyssey mic. For something like an Omnimic, EMM-6 or UMM-6 mic, the adapter that comes with the mic can be screwed directly into the end of the boom arm. Hope this helps.
The problem with 'bass traps' as usually described is that they aren't really any such thing - they are broadband absorbers and they do next to nothing for the very deep bass frequencies, say 30Hz down. If you have persistent ringing there it is very hard to eliminate, as I have found myself. This is even more so if you have a small room like mine, with limited placement options for *everything*. For example, it's a good idea to move the seats away from the walls and a bad idea to have the seats in the centre of the room. In my room, you don't need to move the seats very far from the wall and they ARE in the centre of the room :)
I am investigating what can be done about 20-30Hz ringing but I am not optimistic and may just have to live with it. It looks worse on waterfalls than it sounds to my ears.
Indeed. I have graphed the response in REW using waterfalls. I have no problems until I get down to about 30Hz, which isn't so bad, then more at 20Hz or so, which is, as expected, worse. My main problem is my room - it is too small, a bad shape and offers little room for alternative placements of speakers, subs and seats. Unless or until we move house, I just have to live with it. I guess we all make compromises. I am fortunate that even in this crappy room the SQ is better than I woud have hoped in my wildest dreams thanks to good quality speakers and subs, room treatments and Audyssey XT32. I just wish I could deal with that very low end problem. Actually, it graphs worse than it sounds.