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? Does the impedance of my headphones and amplifier matter? Does the frequency response of my headphones changes over time? I received my individually calibrated headphones but there is no individual calibration file. Where do I get it? (Reference 4.2 & legacy versions) What is an individual headphone calibration? Comments 0 comments Please sign in to leave a comment.