Meterk 600W Car Subwoofer High Power Amplifier Board Single Channel Audio Amplifier Amp. 12.0V Features: 600W subwoofer amplifier can effectively improve the sound quality of car audio and bring you a nice experience. It can help you the weak signal of the audio source or pre-amplifier without changing the sound quality. The powerful electric circulating coil ensures sufficient power for operation, which is more stable and efficient. Built-in current protection, overload protection, short circuit protection, etc., making it safer to use. Premium aluminum alloy housing, exquisite and beautiful, strong shock resistance, quick heat dissipation, and guaranteed quality. Specifications: Color: Black Material: Aluminum Alloy Voltage: 12.0V Max. Power: 600W Impedance: 4Ω Sensitivity: 75-90dB Distortion: 0.01% Item Size: 170 * 155mm/ 6.7 * 6.1in Package Size: 180 * 160 * 60mm/ 7.1 * 6.3 * 2.4in Package Weight: 650g/ 22.9oz Packing List: 1 * Power Amplifier Board 600W subwoofer amplifier can effectively improve the sound quality of car audio and bring you a nice experience. It can help you the weak signal of the audio source or pre-amplifier without changing the sound quality. The powerful electric circulating coil ensures sufficient power for operation, which is more stable and efficient. Built-in current protection, overload protection, short circuit protection, etc., making it safer to use. Premium aluminum alloy housing, exquisi