Hi Rob
Interesting that our conclusions are different being that we both have Merlin speakers. I use a different amplifier than you, a Berning zh270 wide bandwidth and would think it might reveal more readily any inherent brightness or rolled off characteristic for that matter. I wouldn't call the EE Plus bright by any stretch in the upper frequencies but I wouldn't call it forgiving either. Actually it is in this area where the Plus excels but not any more than the W4S. Having both on hand I would say they are more alike than different in the upper frequencies. It is the overall tonal character and balance that is different and most apparent, fwiw.
Interesting that our conclusions are different being that we both have Merlin speakers. I use a different amplifier than you, a Berning zh270 wide bandwidth and would think it might reveal more readily any inherent brightness or rolled off characteristic for that matter. I wouldn't call the EE Plus bright by any stretch in the upper frequencies but I wouldn't call it forgiving either. Actually it is in this area where the Plus excels but not any more than the W4S. Having both on hand I would say they are more alike than different in the upper frequencies. It is the overall tonal character and balance that is different and most apparent, fwiw.