Whether you are the type of audio enthusiast that likes to hit the open road on his bike, ride the rough trails on your side by side, or cruise the open waters, you are going to need a powerful and waterproof rated amp that has a small footprint and also make great power. DS18 has a line just for the job with the NXL series of amplifiers to power your whole system. These amps are very efficient, small, and have great power output. This flush mounted amplifier can be mounted in multiple ways for a factory look to help you accommodate for all your different speaker setups without having to look further. Being full range amps, these can be run on subs, midrange, or tweeters because of the internal design of the amp. This unit has stable and reliable 4-layer PCB layouts, IPX67 rated for power sports, has an ultra-compact flush mount size for easy installation, and has audio precision quality control verification. The NXL line of amps is what the serious outdoors person will need for their vehicle hands down! Model: NXL-F4 Number of Channels: 4 Frequency Range20Hz - 20KHz Max Power: 1200W 2 Ohm RMS Power Per Channel: 160W x 4 4 Ohm RMS Power Per Channel: 100W x 4 4 Ohm Bridged Power Per Channel320W x 2 Gain Range0. 2-6V Signal-to-Noise Ratio: 90 dB THD: