Features: Compact structure, full function and air-cooled heat dissipation. Low frequency, fine sound quality, suitable for home or theater. Four chips, all-dimensional protects, air-cooling fin and heat transfer fan. Boot delay and instantaneous shutdown. Short circuit and overload protects. Used prime NICHICON large capacitance make the sound exquisite and pleasant to listen to. Specifications: Type: A, B (optional) Model: DX-2.1-3 Working Voltage: AC18V-24V Output Power: 2 * 80W Mega Bass Output: 120W Right and Left Channel Output: 100W+100W Frequency Response: 20HZ-30KHz Distortion Factor: 1% Item Size: 160 * 150 * 60mm / 6.3 * 5.9 * 2.4in Package Size: 160 * 155 * 65mm / 6.3 * 6.1 * 2.6in Item Weight: 280g / 9.9ounce Package Weight: 330g / 11.6ounce Note: Please allow 1-3mm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. PackingList: 1 * Power Audio Amplifier Board