JBL Everest Elite 700 measurements can be found by clicking this link.
The JBL Everest Elite 700s are the most technologically advanced headphones I’ve tested. I can’t think of a significant feature they don’t have, but the most innovative is TruNote automatic calibration. TruNote uses an internally generated test tone and an internal microphone to evaluate the acoustical effects of your ears, and tunes the Everest Elite 700s’ frequency response to compensate for those effects. It’s basically a headphone version of the auto-calibration technologies, such as Audyssey MultEQ, found in most A/V receivers. This feature was launched earlier this year in the N90Q ($1499.95 USD), from AKG -- which, like JBL, is owned by Harman International.