From ultra-low noise AC power cables to a frequency-calibrated jar of stones, it’s pretty amazing what can be sold in the pursuit of better sound. As it turns out, most of these subtle yet pricey upgrades/enhancements are nothing more than placebo – and hearing is a very subjective thing.

Originally presented as part of a panel discussion at the 2009 AES show in NYC, Ethan Winer posted this in-depth video exposing a number of myths and misconceptions in the world of high-end audio. Example audio referred to in the presentation is available for your listening scrutiny on Ethan’s site. [via Waveformless]