For example:
Front L/R -2.5
Center -4.0
Surround -10.0
Sub -10.0 (Sub 10 inches at 12 o'clock position)
All set to Large, except the surrounds at 40hz.(I have 4 inch bookshelf speakers as fronts)
This IMHO is way too low. This Is after doing Aud. mic 3 times.
I'm 10 feet away.
Thank you for clarifying this with hard numbers, now I know exactly what you are up against. Actually it did happen to me when I replaced my 7005 with the 8801. The 7005, as well as my previous 4308 had no trouble with my SVS Ultra's volume knob at just below mid point. With the 8801 in place, I ended up with similar numbers like yours. I tried moving the sub around a little but not much changed, so I ended up lowering the sub volume know to the 9:00 position, then everything came back to +/- 1 to 1.5 dB except the rear surrounds are, and always have been low at around -4 to -5. That is understandable because my surround backs are only 4 to 5 ft from where I sit. That tells me the 8801 must have high sub out level than the 7005 and the 4308 as the gain of my sub has not changed for sure. Your AVR probably also has above average sub out gain, not a bad thing at all, so that allows you to lower the gain of your sub's build in amp.
I suggest you lower the sub volume to 9 to 10 O'clock position and I am sure you will end up with the higher level that you prefer to see. Audyssey does suggest people to set the sub volume to half way but that's just a starting point. They also want people to end up with levels closing to 0, say +2 to -5 should be fine but not -10. As others suggested, at the end you can always make a conscientious decision to crank the sub level up a few dB to suit you taste. You could aim to have the end point at say -3, and then manually change it to 0, then you are happy, and Audyssey is happy. It is not really an Audyssey issue, you will have the same issue with other room EQ system, they naturally have to deal with prepros that have different sub channel's gains.