The MINKEZ's PA-650WDV provides regional power amplification for broadcasting systems with a 1U standard 19-inch industrial cabinet design. This public address system is appropriate for multi-channel high-power pure back-end amplifiers in broadcasting systems such as clubs, stadiums, shopping malls, and so on. The overall efficiency of PA-650WDV is as high as 85% because of the use of a high-efficiency Class D amplifier circuit and built-in high efficiency switching power supply. Besides that, PA-650WDV has 1 channel digital power amplifier with a 100V or 4 -16Ω output terminal, and support for fault output, as well as the ability to remotely monitor the state of power amplifier equipment. Even better, this model also included short-circuit, overload, and overheat safety functions.