The car audio amplifier is a 4-channel model from SoundQubed, specifically the S4-100. It has an RMS power output of 175W per channel and is designed for use in vehicles. Manufactured in the China, this amplifier is ideal for enhancing the sound system in a car, providing clear and powerful audio performance. With four channels, it offers flexibility in connecting and powering multiple speakers or components in a car audio setup. All items are under warranty through the manufacturer from this authorized Distributor