Hidden System for Benz S550. This car is already top of the line, but we still upgraded the audio! The two Alpine Type X 5 Channel amplifiers power up 10 channels of Superior sound quality. The Audiomobile Elite 10" woofers can handle up to 1000watts each. A custom enclosure makes sure the Subwoofers will penetrate through the heavy Mercedes-Benz rear firewalls (yes there are two walls behind the back seat). Check out the Video below to see how the entire system is hidden!