Feature: 1. 4-channel high-power car amplifier can effectively improve the sound quality of car audio and bring a nice experience to users. 2. It can amplify the weak signal from the audio source or pre-amplifier, without changing the sound quality, and promote the sound of the speaker. 3. Premium aluminum alloy housing, exquisite and beautiful, high-end texture, strong shock resistance. With multiple cooling holes, quick heat dissipation and nice stability. 4. Built-in current conservation, overload conservation, short circuit conservation, etc., making it safer to use. 5. The powerful electric circulating coil ensures sufficient power during operation, and it is safer, more efficient and more stable. Specification: Features: 4-channel high-power car amplifier can effectively improve the sound quality of car audio and bring a nice experience to users. It can amplify the weak signal from the audio source or pre-amplifier, without changing the sound quality, and promote the sound of the speaker. Premium aluminum alloy housing, exquisite and beautiful, high-end texture, strong shock resistance. With multiple cooling holes, quick heat dissipation and nice stability. Built-in current conservation, overload conservation, short circuit conservation, etc., making it safer to use. The powerful electric circulating coil ensures sufficient power during operation, and it is safer, more efficient and more stable. Specifications: Color: Black Material: Aluminum Alloy Channel: 4 Voltage: 12.0V Max. Power: 4600W Impedance: 4Ω Signal-to-Noise Ratio(SNR): 95dB Frequency Response: 10Hz-3KHz Item Size: 348 * 194 * 46mm/ 13.7 * 7.6 * 1.8in Item Weight: 2kg/ 4.4lb Package Size: 415 * 195 * 95mm/ 16.3 * 7.7 * 3.7in Package Weight: 2.3kg/ 5.1lb Packing List: 1 * Power Amplifier Package List: 1 * Power Amplifier