Feature: 1. Enhanced Sound Quality: The car stereo amplifier comes with a high power pure copper transformer, upgrading your sound system's performance consistently. Its large capacity capacitor provides a stable voltage. 2. Aluminum Alloy Body: The robust aluminum alloy body reduces resonance significantly. The fully enclosed box and side groove design enhance heat dissipation, prolonging the lifespan of the amplifier. 3. Stable Transmission: Featuring pure copper connection posts, this amplifier boasts of low resistivity and electrical loss. It provides excellent stability, and minimizes signal transmission decay for clear sound. 4. High Grade: This car power amplifier supports 1Ω, 2Ω, and 4Ω subwoofers, ensuring compatibility with a wide range of speakers. It delivers powerful, clear, and immersive sound. 5. Efficient and Effective: Not only amplifies the sound but also ensures consistent and clear quality sound output. Its efficient design optimizes power use, protects your speakers from damage. Specification: Item Type: Car Stereo AmplifierMaterial: Metal alloy + aluminum alloy Effective Power at 4Ω Load: 700W Effective Power at 2Ω Load: 1200W Effective Power at 1Ω Load: 2500W Impedance: 1-4Ω Input Voltage Response: 0.2-5V Input Frequency Response: 10Hz-180Hz Sensitivity: >90dB Total Harmonic Distortion: <0.2% Signal-to-Noise Ratio: >70dB Low Pass Cutoff Frequency: 40Hz-180Hz Subsonic High Pass Cutoff Frequency: OFF-50Hz Low Bass Boost Frequency: 30Hz-80Hz Low Bass Boost Gain: 0-12dB Power Supply Current: 300A Power Supply Voltage: 12V Minimum Speaker Load: 10hm Operating Efficiency: >85% Overheat Protection Mechanism: 80℃/176℉ Circuit Board Functions: SMT and Double Sided Circuit Board. Package List: 1 x Car Amplifier 1 x User Manual 4 x Accessories