OK I found the problem. I discovered that the tone control settings were set to +12db for bass and treble and I also have an intelligent volume control which enables the user to increase the signal volume if it is low. This intelligent volume setting was set to +12db as well. After returning both tone controls and intelligent volume to 0db I was able to get volume up to +18 db. Thanks for everyones help.
I also noticed with that with Audyssey cal. that my fronts are set to full range even though I have a subwoofer. I understand that this is probably correct as the frequency response of the M80's is within +/- 3db below 40 hz. I would have thought that it would be best to set the crossover for the fronts around 80hz so that the sub could do a bit more work. What have other people here done with this setting? I know that this will vary according to the room specifications.
