@normb (et al) -
It's sad that so many of you naysayers refuse to acknowledge the FACTS of so simple an issue.
NO ONE is attempting to place themselves above another, or claiming to have, "golden ears".
In your haste to justify your untenable position, you ignore the truths that:
1) The LEDR test, and others available (ie: on the Chesky Test disc), are purposely designed to test our systems for sound stage width, depth and height.
2) Their intention/goal is the removal or all variables, regarding source material.
3) There (QUITE OBVIOUSLY) exist a multitude of variables, beyond source materials, that can/will limit the reproduction of the effects under discussion.
4) YES: those variables include the disparities that exist in aural acuity between individuals, LIKE EVERY OTHER OF THE HUMAN SENSES, which the more rational of us recognize as, "LIFE" (that just how it goes).
To dissuade others of their pursuits (whether tonality/organics that please THEIR palate, a sharper image, the accurate reproduction of a recording venue's ambiance, whatever their individual goal) is disingenuous, at best.
The tenets of the Naysayer Church, based in nothing but the unscientific, unlearned and misguided faith of a few, but- repeated vociferously in so many AudiogoN threads, can be disheartening.
My only goal, in these threads, is (and has ever been) to encourage any that desire tonality/organics pleasing to THEIR palate, a more realistic reproduction of recording venue ambiance, or: HOWEVER, "better sound" is defined for them, to experiment with their rooms and systems, by any means that piques their curiosity.
Were your ilk's the only voices acknowledged: we'd still be listening to Conch shells and arguing, as to whether two could actually produce a stereo effect.
Thankfully: we've moved past the mind-numbing rhetoric of so many distractors and progressed, far as we have.
Happy listening!