Overview The ART HVA Series 1 and 4 are class-D installation amplifiers. They are suitable for both70/100V line installations (selectable through dip-switches). Each channel has its owngain control and LED indicators (signal, clip and protection). The input and output connectionsare made through Euroblock connectors. The amplifiers are a 1U rack 19-inch size is veryappropriate for many types of installations, taking advantage of its multichannel design. Key Features • High current switching power allowing high power output with low noise andlow distortion• Short circuit, thermal and power on/off muting protection• Built-in limiter• Euroblock input and output• Front mounted gain controls for easy access• Signal, Clip protect, and Power LED indicators to monitor performance.• Disable Amplifier Outputs remotely• Priority, remote test trigger• Remote Failure Status indicator• 2-channel or 4-channel installation amplifier.• 70/100V line operation.• Power output (70/100V): 2X150W/4X300W• 1 U rack 19-inch size.• Switching power, class-D amplifier.