The Azur 540R has a host of new features improving on its already ground-breaking performance. Among them are an On Screen Display (OSD), Control Bus inputs/outputs for multi-room compatibility and an extra co-axial digital input. All these new additions and more, help to create a vastly superior sound and better functionality. One of the key benefits of the 540R is its outstanding sonic ability as well as strong video performance making it a complete all-round receiver for music and movie lovers.