UNIT SPECIFIC CALIBRATION FOR X1
If you own the X1, download your USC by entering your serial number below.
UNIT SPECIFIC CALIBRATION FOR LATEST S4R, S4X & S5X
Compatible with the S5X 1.1, S4X 1.3, or S4R 1.3. To download your USC enter your unit serial number below.
MODEL SPECIFIC CALIBRATION
Although MSC (Model Specific Calibration) is not as powerful as USC (Unit Specific Calibration), it's a great addition to headphone models from before August 2023.
MSC data for S4 (with new earpads)
MSC data for X1 (only in case of lost serial number)
The difference is as follows: USC refers to the calibration of your specific unit, with each serial number individually calibrated. MSC, on the other hand, is based on the average calibration of an entire model series. Always use USC if your headphones include it, and opt for MSC only if your unit did not come with USC or if you have lost the serial number.