In the original post I noted that I used the 990's internal test tones to set the speaker calibration. From what I can tell from this forum the the 990's test tones are white noise. I have a copy Digital Video Essentials and it has pink noise test tones. When I ran the DVE test tones the speaker settings changed rather dramatically. Now the L is -3 (-7), C is -4 (-3), R is -5 (-7), RS is -2 (0), LS is -5 (0). Original settings using the 990's test tones are in parenthesis. I do notice the stereo image is slightly to the left when listening to CDs in stereo and I may make some minor adjustments to those settings. DVE does a pink noise pan across the speakers and the SPL meter waivers very little. During my limited listening sessions I like the sound better now.

From a 2006 post, Gonk summarized:

"Basically, white noise is a "flat" line all the way across the frequency spectrum, while pink noise is filtered to account for the behavior of human hearing."

So the question is: Is it better to use white or pink noise to set speaker calibration?

If this was a poll, at this point I'd say use pink noise.