Lol that statement has nothing to do with inebriation.

It’s actually a technique first used to international audio acclaim in the Sennheiser HD-800. There are numerous articles in European and North American hi-Fi media outlets in which Sennheiser engineers talk about the strategy behind tuning the HD-800 the way they did.

The tuning was specifically attenuated in that frequency range to portray a sense of distance from the source sounds in that frequency range. Not quite the explanation you imagined earlier, eh ? You thought it was a joke. Joke is on you, son 😎