This amplifier features an ultra compact design requiring only 1RU in height and 1/2 rack wide in space. The 100W into a 70V or 100V distributed system gives the power to meet most amplifier demands. The PA1001G power supply supports 120-240VAC power for global use and operation. The patent pending through hole chassis design makes it convenient to use with ceiling mounted video projectors. One or two units can be rack mounted also allowing it to be used in more traditional applications. Rack mount kit sold separately. Remote turn on is easily accomplished by either audio or AC trigger sensors. If focused power is required, an optional Hi-pass filter is incorporated. Master remote level control is easily done via an external 10k poteneometer and a line out makes it easy to daisy chain amplifiers. The PA1001G has incorporated a mixer function that allows you connect two different sources to the amp. The summed RCA unbalanced inputs and the balanced input are electrically summed together and are electrically isolated from each other. The PA1001G can be used in many ways ranging from boardroom, restaurant, commercial paging and back ground music applications.