In searching for an answer, I happened to stumble across a post on our sister Live Sound forums that kind of addresses this issue [±3db]. Here is the link http://forums.prosoundweb.com/index.php?topic=153491.0
Additionally -- there was a wonderful signature file on one of the responses... so, while I don't have a hard and instantly verifiable answer to your enquiry... I did find a phone number!!
Senior Manager, Applications
+1 702-800-8290 for tech support or CAREProf@music-group.com
I hope this is of some assistance.