Hi Dome,
I have been re reading this thread.
Have you done much since post 201 and 228?
You comments around careful and often exacting adjustment of the S9900 location make perfect sense and that should be a sticky for anyone setting up a loudspeaker system.
You mentioned an 8 attribute adjustment.
But the constant not discussed is the ceiling to listening distance or floor to ear height unless l missed something ?
Have you tried different chair heights?
Elsewhere we have talked of moving the ear height down for the systems using the 2308 lenses but l wonder if you have considered a lower chair height? That impacts on the response in the crossover region of any loudspeaker.
The other impact is unless the ceiling is high it’s often a large flat surface less than 2 metres from your ears. A proportion of indirect sound will be reflected from the ceiling.
I am enjoying the scale of significantly higher ceilings at the rear of our new home. The consensus is that brings something new to listening experience in terms of the acoustics.