I also have found that Width = 1.2 Centre Depth = 1.0 on the 568.1 is the best compromise with my ATC analogue monitors.

The width control seems to have the most marked effect regarding soundfield integration with the depth seemingly less sensitive. My centre speaker axis is around one foot lower them the main L/R pair but this doesn't seem to affect the image much.

I don't seem to get the "all in the centre" effect reported above and you can clearly locate instruments in between the centre and main L/R positions.

I agree with the need for an explanation of all the variables. The EQ settings seem, shall we say, subtle in their effect.

Malcolm

Malcolm