The K-system is an audio level measuring technique proposed by mastering engineer Bob Katz in the paper "An integrated approach to Metering, Monitoring and Levelling". It proposes a studio monitor calibration system and a set of meter ballistics to help engineers produce consistent sounding music while preserving appropriate dynamic range.
- An integrated approach to Metering, Monitoring and Levelling
- Hugh Robjohns (October 2003). "One of the most famous mastering engineers has written the definitive work on mastering, and in the process has created an indispensable resource for anyone working with audio". Sound on Sound. Retrieved 2012-09-23.