Features 1,Durable Construction: Crafted from premium aluminum alloy, this car amplifier is built to withstand the rigors of automotive environments while providing long-lasting performance and reliability. 2,Robust Signal Handling: With a signal-to-noise ratio of ≥90db 1W (4 ohms) and a frequency response range of 20Hz-20kHz, this car audio amplifier guarantees impressive sound reproduction across various audio frequencies. 3,High Power Output: Experience unparalleled sound quality with our car amplifier, delivering a maximum output power of 4x47W and 4x35W under 10% distortion, ensuring your car audio amplifier delivers clear and powerful performance. 4,Cooling Design: Designed with large venting slots, this automotive amplifier effectively increases heat dissipation, preventing overheating during extended use and ensuring consistent performance. 5,Easy Installation and Compatibility: This car stereo amplifier is specially designed for most Android car stereo systems, allowing for quick plug-and-play installation without the need for disconnecting existing components. Specification Item Name: Car Audio Amplifier Main Material: Aluminum Alloy Power Amplifier Class: A/B Input Channels: 4 channels Maximum Stable Load: 2 ohms Signal-to-Noise Ratio: ≥90dB 1W (4 ohms) Frequency Response Range: 20Hz-20kHz RCA Signal Output: 4V Product Color: Black Product Size: 14.6 x 9.5 x 4.3cm/5.75 x 3.74 x 1.69inch Package List 1 x Amplifier<br />1 x Wire Harness<br />2 x Set of Adhesive Tape Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.