Detailed Product Description AC/DC Switch Mode Power Supply (SMPS) Specially for Audio Amplifier, 3000WPower: 3000WNo. of Outputs: 2~4 Channels (Multiple)Input Voltage: 110~220V +/-10%Output Voltage: +/-15V, +24V, +/-70V, +/-140VEfficiency: >85%Class: Class H, 2 TierProtection: High/Low Voltage, Short Circuit, Thermal Protection, Over Current & Over LoadedDimension: 275x207x56 mm