Key to upgrade your copy of Reference 3 or 4 Studio edition to SoundID Reference for Speakers & Headphones. Digital upgrade key delivered electronically.
Upgrade from Sonarworks Reference 3or4 Studio edition to SoundID Reference for Speakers & Headphones

SoundID Reference is a calibration software for your studio headphones or monitors. It adjusts the frequency response of a specific model or piece of audio equipment so that it has the smoothest possible curve, thus achieving maximum sound neutrality for reliable analytical effect and use.

DOWNLOAD
https://www.sonarworks.com/soundid-reference/download

INFO
https://www.sonarworks.com/soundid-reference