Feature: 1. Compact Design: With dimensions of 320 x 205 x 45mm / 12.6 x 8.07 x 1.77in, easy to install and featuring a sleek aluminum alloy casing with brushed finish, adding a touch of elegance to your vehicle. 2. High Power Output: The 4 channel amplifier is designed for subwoofer systems, provide strong power output with 4 x 100W for each channel and a maximum power of 7800W. 3. Unique SQ Sound Enhancement Function: Precisely set output signal frequencies to concentrate energy in the ideal working frequency range for optimal speaker performance, showcasing excellent dynamics and volume levels. 4. Enhanced Low Frequency Impact: Regardless of the music genre, low frequencies play a crucial role in overall sound quality, and this amplifier ensures ample power output to deliver full, dynamic sound. 5. Wide Applications: Stereo amp delivers robust power to ensure an exhilarating sound experience,excellent for upgrading your car, truck, boat, UTV or motorcycle stereo system. Specification: Item Type: Car Amplifier Color: Black Material: Aluminum Alloy Type: Class AB Channels: 4 Voltage: DC 12V 4 Channel Maximum Power: 4 x 100W Maximum Power: 7800W Impedance: 4Ω Signal to Noise Ratio (SNR): 90dB Frequency Response: 10Hz to 30KHz. Package List: 1 x Car Amplifier 5 x Installation Accessories 1 x User Manual