AKG K812 PRO Reference headphones Over-EarThe K812 from AKG is an over ear, reference quality headphone that, with its extended frequency response, is perfect for mixing, mastering, and audio production. Various enhancements are included that allow the headphone to deliver high headroom and dynamic range, detailed imaging and excellent impulse response. An air flow dome provides control over the membrane movement for reproducing dynamics that other headphones might not handle, and the 1. 5