"It is extremely important that the 950s master volume control be set at "00" reference level before any calibration."

More than just me do this? Well, really THATS not what I did, but something close. My second calabration was in a hurry..once in speaker calibration I was using the higher up true 'volume' arrows on the remote to move my dB up and down....it moves it...but dosent remember it when you exit calabration......You have to use the left/right arrows around the main toggle area. I thought I had broke something ...it would not 'keep' my calabrations, (and I would not have even noticed after exit from calabration but went round the horn again. And they kept coming up diffrent from the meter. Finally realized I was using the wrong volume controls.