Fangrui Product Details Elevates Your Car Radio Experience With Our Specialization Four Channel Digital Processing Car Amplifier, Engineered For High Quality Sound Customization And Performances. Featuring Advanced Digital Processing Technology, This Amplifier Allows Precise Sound Positioning And Equalization Settings To Fine Tune Your In Car Video To Perfections. For Car Owners With A Discerning Ear For Video Quality, Music Enthusiasts Who Craves Superior Sound, And Professional In The Automotive Sound Industry. Whether Its For Upgraded Sound Systems In Car Meet Ups, Parties, Or Enhancing Your Video Enjoyment On Long Drives And Road Trips, This Amplifier Is The Addition. Constructed From Aluminum Alloy Materials, This Plugs And Play Car Amplifier Is Designed For Easy Installation, Ensuring Youre Back On Road With Exceptionally Sound In No Time. Power Amplifier: Class A/b Input Channels: 4 Channels Maximum Stable Load: 2 Ohms Rms Power: 4x80w 14.4v Signal-to-noise Ratio: Greater Than Equal 90db 1w(4 Ohms) Frequency Res