Atmasphere, i am not sold on the notion that audiophiles need to be good physicists or neural scientists to make progress with audio. as far as i am concerned, i much prefer making progress with audio by educating my ears to perceive dimensions about sound reproduction that one is not aware of unless he educates his hear. so, my approach is to educate my ear and then experiment with different systems, not studying the physics of sound or the neural bases of hearing.