"PA 2120 L is a 2-channel of 120W each, class-D installation amplifier. It is suitable for both 70/100V line installations (selectable through dip-switches). Each channel has its own volume control and LED indicators (signal, clip and protection). The PA 2120 L amplifier has several protections such as short circuit, thermal, ultrasonic and RF. The input and output connections are made through Euroblocks, and it is 1HU for 19? standard racks."