The Presonus Central Station Plus is a rack mountable monitoring management system designed to assist in routing audio from a mixer or DAW to multiple monitor speakers and headphones. 

The AKG K712 Pro headphones are semi-open reference headphones sitting in the middle to upper range of the K series monitor and reference headphones. These headphones improve on the sound from the K240/K701 while still following the same design and feature sets of previous headphones.