Feature: 1. 4-channel power amplifier adopts multi-layer PCBs board, which is firm and fine, anti-drop and shock-resistant, effectively improving the sound quality of car audio. 2. Built-in multiple protections, power short circuit protecting, high temperature protecting and signal short circuit protecting, reliable quality and safer to use. 3. The integrated pure aluminum heat dissipation housing protects the circuit, has nice anti-drop and shock resistance, and has nice stability. 4. Two-color coil transformer, small size, high power, rejects all short circuits, and improves the utilization rate of PCBs boards. 5. The pure copper nickel-plated terminal blocks solve the problem of easy oxidation of pure copper, with nice contact performance and strong anti-interference. Specification: Features: 4-channel power amplifier adopts multi-layer PCBs board, which is firm and fine, anti-drop and shock-resistant, effectively improving the sound quality of car audio. Built-in multiple protections, power short circuit protecting, high temperature protecting and signal short circuit protecting, reliable quality and safer to use. The integrated pure aluminum heat dissipation housing protects the circuit, has nice anti-drop and shock resistance, and has nice stability. Two-color coil transformer, small size, high power, rejects all short circuits, and improves the utilization rate of PCBs boards. The pure copper nickel-plated terminal blocks solve the problem of easy oxidation of pure copper, with nice contact performance and strong anti-interference. Specifications: Color: Orange Material: Aluminum Alloy Type: Class D Channel: 4 Voltage: 12 V Max. Power: 7800W RMS Output Power 4Ω: 4 * 100W RMS Output Power 2Ω: 4 * 150W Bridged Power 4Ω: 4 * 300W THD: 96dB Sensitivity: 320mV-6V Recommended Fuse Type: 20Ax2 Item Size: 320 * 210 * 60mm/ 12.6 * 8.3 * 2.4in Package Size: 425 * 285 * 80mm/ 16.7 * 11.2 * 3.1in Package Weight: 2.5kg/ 5.5lb Packing List: 1 * Power Amplifier Package List: 1 * Power Amplifier