The VHD3200 is a rack mounted subwoofer amplifier. The unit contains two separate 1600 watt amplifiers with individual power supplies, signal paths and inputs and outputs within a single four rack space chassis. The unit can be used in bridged mode to provide full power for one channel mode. The unit acts as a slave for the VHD2000, which provides audio and control signal. It can also be used with the EPAK2500/R when used in combination with KV2 Audio ES systems and power the associated ES subwoofer systems. Although this unit is simple to operate improper use can be dangerous. This is a very highpowered device that can put out high voltages and sizable currents. Always use safe operating techniques with the VHD3200.