Where do I ship my headphones for individual calibration? Viesturs Updated February 04, 2019 12:28 Follow Our address is: Street: Smerla iela 3City: Riga Country: Latvia Postal Code: LV-1006 Company: SONARWORKS Ltd Related articles How long does it take to calibrate my headphones? What is individual calibration? Can I use in-ear headphones with Reference 4? Can I use other microphones? When do I need to bypass the plugin? Comments 0 comments Please sign in to leave a comment.