Sonarworks individual calibration service has made the choice between all AKG K7xx revisions quite easy - none of the other AKG headphones lets you hear deeper into the mix than our calibrated K712 Pro. Advanced patent pending Sonarworks measurement technology delivers a custom-made calibration profile and when used with Reference 4 it corrects the frequency response of these already good headphones with +/- 0.9dB precision. 

If you want to learn more about headphone calibration please click here. 

This product includes:

• Custom tailored calibration file for your personal headphone 
• Technical passport containing FR and THD measurements
• AKG K712 Pro dynamic open back studio headphones