The 4-Channel, Full-Range Amplifier embodies over 90 years of innovation and excellence in Blaupunkt products, making it the perfect amplifier to install into your motor vehicle. With an optimized 55-watt x 4 RMS output, you can give your music a huge boost in power that will have you and your passengers partying while on the road. This slim amplifier fits perfectly into any trunk so you can easily connect it to your stereo system. Get amped up for the 4-Channel , Full-Range Amplifier and take your car to the next level. With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers. You have the control of exactly how much BASS you want to pump out to your subwoofer(s). Efficiency is the name of the game. Put your music into high gear and take off. This amplifier is ideal for your entire audio system.