The DS18 NXL Series was developed for people who want a very small audio footprint that is capable of putting out lots of power and sound in a small and waterproof package.The NXL Series of amps are one of our most efficient lines with great power output all while withstanding the elements. Being a full-range amplifier . they can be integrated with and run on subwoofers . mid-ranges . and tweeters. The high pass and low pass filters will help you tune your speaker choice accurately so you can obtain crystal clarity from low volume levels all the way to the maximum for the ultimate audio experience.All NXL Series amplifiers have stable and reliable 4-layer PCB layouts . an IP67 waterproof rating for power sports an ultra-compact size for easy installation . and audio precision quality control verification.The NXL Marine Amplifier series is exactly what the outdoors lover will need for their boat or vehicle audio to brave the trails . enjoy the lake . or any situation that needs a strong versatile waterproof amplifier.*Sold as an Individual