Originally Posted by
ss9001 
When you run auto MCACC for all 3 modes, the 1st will be Symmetry, followed by All Channel Adjust and Front Aligned (or whatever they're calling it now)...1, 2, 3
Whatever the previous settings & EQ were in M4 when you got it depends on whether it was used or not. If not, then all the settings, levels, channel trim and freq EQ's will be 0's. In other words, they have no adjustments from the factory. If the previous user did use M4 for a custom setup, it would be unknown to anyone what those adjustments were unless you went into the setup menu and wrote every one down or transferred to a PC using Pioneer's MCACC PC application.
Out of the box, from the factory, every memory preset will be 0's for all settings & adjustments.
For a simple calibration, Memory 1 will be Symmetry. And for all 3 calibrations, Memory 1 will be Symmetry.
A user can copy any of these presets to any other, incl M4-6, and make manual adjustments to any of them.
My advice is go in the MCACC manual speaker settings menu and see what all the settings are in M4.
When you ran the calibration, did you
1. have the mic in the listening position, pointed directly up at the ceiling, not tilted forward or back?
2. have it on a tripod or stand close to where your ears would be?
3. have it directly in front of a high seat back?
4. close to the back wall?
If 3 or 4 are yes, that can give unsatisfactory results and if 1 or 2 are no, then you're not going to get optimum results. If you don't have a tripod, at least put it on TOP of the seat back which will approximate where your head will be and not have reflections off of the back interfere with the mic pickup.
I recently read a poster complaining about not liking his sound when he held the mic in front of his nose while he was standing in the room all the time it was running! And he expected good results? Get yourself out of the room if possible, aiming the remote at the receiver to do the calibration. If this is not possible, at least get yourself out of the way of the mic and seating, off to the side.