With the urgent need to reduce power consumption in schools & businesses, the TC2-AMP1 Techconnect Amp uses no power at all unless it is actually amplifying program. Even if it is turned on at full volume, unless it is receiving input it is effectively off. The Techconnect Amp module achieves its huge power output by using the latest low impedance Texas Instruments digital amplifier chip. This amplifier is perfectly matched to the CS-1300 ceiling speakers. Because the TC2-AMP1 is wall mounted, no traditional furniture is required & as it looks like part of the connector faceplate it is much less obvious as a target for theft. It is close at hand if volume adjustments need to be made, making it perfect for training rooms, boardrooms, & classrooms.