The Sound Town ST-UPDM4C is a professional 4-channel UPDM power amplifier. The UPDM (Unipolar Pulse Density Modulation) technology enables the unit to keep the power consumption to minimum.
Compared to traditional Class-AB amplifier, the Sound Town ST-UPDM4C is more efficient and much lighter with less power dissipated as heat. It delivers 4 X 1400W watts at a 4-ohm, 4 X 800 watts power output at 8-ohm and provides more headroom to your PA rig.