Features: Experience clear audios with advanced DSP technology that optimizes real time sound processing, delivering 4x60W power output and 20Hz response for immersive car audios experiences. Car audios DSP amplifier features professional thermal dissipation, 110dB capability, and easy installation fit most vehicle models. Perfect for audiophiles and daily commuters seeking to upgrade factory car stereos, especially enthusiasts craving theater quality sound during drives. Enhances road trips and outdoor gatherings with theater grade acoustics, effortlessly connecting to mobile devices for vibrant music playback at campsites or BBQs. Outperforms plastic shell amplifiers through intelligent dynamic sound optimization and vibration resistant metal construction that maintains stable performances during extended use. Specifications: Material: Metal, Plastic Input: 12V-18V 3A Speaker impedance: 4-8Ω Voltages: 12V Output power: 60wx4 Sensitivity: 0.25mv-50mv Input impedance: 47K Frequency response: 20Hz-20KHz Size: about. About. 9.7x7.3x3.6cm/3.82x2.87x1.42in Package Includes: 1 Set Car DSP Amplifier note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.