I totally agree with you. If we were to work together in a great studio, we'd likely hear things differently, and what sounds accurate to one of us might not be so accurate to the other. An ideal studio isn't an anechoic chamber. I've been in an anechoic chamber, and everything sounds overly bright there. You will end up asking for more bass response, even if the measurements indicate that it's perfectly flat. The best way to use profiles is to choose the one you like and mix your song with that profile. Later, when you mix-check your song, you can determine if it's too bright or dull, and adjust the profiles as needed. It's all about translation, and that's exactly what the VSX is designed for.Thanks for looking into that. Hmm, ok, well, that doesn't seem particularly ideal, because it seems as it's down to the user to simply flip between 3 EQ profiles to find the one they think is the most accurate, so there's no attempt to derive the "ear calibration" through photographs or measurements (not that I'm saying photographs would work, they probably wouldn't), but it's not "ear calibration", it's just 3 different EQ profiles that the user has to try to see which one they think is more accurate. It doesn't seem like a magic bullet for creating a headphone that is supposed to mimic a studio reference system (Anechoic Flat Speakers).