Definity controllers are available in a number of formats to provide cost effective
control with a comprehensive range of onboard facilities, supported by extensive
onboard facilities, are key benefits of this innovative new range of controllers. Matching
Euro frames also available. See Here See Video on choosing a controller here
The AU4 is a four channel audio router, volume control, amplifier designed to operate
in conjunction with the SPC and Synergy controllers or as a stand-alone unit.