Somehow, two different discussions got twisted together, the questions of whether reproduced frequencies above the range of your or my hearing acuity have any effect on your or my perception of music vs whether one should listen with eyes open or closed. IMO, both questions are more interesting than the question of what type of cartridge Joe Blow of Audiogon Forums likes best. And yet this thread on that subject will go on forever; Raul is a genius at posing open-ended questions that provoke opinions for the sake of having an opinion.
On the first new question, Raul and the published scientific papers he quotes are undeniably correct. The fact that our sense of SQ is affected by reproduction of frequencies we cannot "hear" by the criterion of audiometry has been shown many times. This could be due in part to bone conduction or whatever, but it's a fact that I not only accept but am grateful for, since I am old and subject to age-related hf hearing loss. In his white paper on designing preamplifiers, Allen Wright even claimed that he or his listeners could detect a difference in treble response between a circuit that went out to 1 MHz vs a different version that went out to 750KHz, when he experimented with two different configurations of the same preamplifier driving the same downstream system. (That seems a little extreme, even to me.)
On the second new question, I am not sure what is the issue. No one seems to be saying that eyes open vs eyes closed makes no difference. For sure, it makes a big difference to me in perception of soundstage and location of instruments and distortions produced by the venue or the PA system in any live venue. I experienced this as recently as the last few days when we attended two different live performances, one in a local jazz club and one in a small concert hall which has very good acoustics. At any live venue, I always listen both ways, eyes open vs eyes closed, just to amuse myself but also to get an idea how what I am seeing and listening to might sound if I could only hear it on a home system. My late audiophile friend had an extensive library of DVDs containing live jazz performances. He had a huge flat screen TV flanked by high end Martin Logan ESLs and driven by quality amplification. I spent many hours listening with him while we watched the actual performance on the screen. What happened was I lost nearly all consciousness of or obsession with purely the sound quality. I was immersed in the experience as if it was happening in front of me.