DS18 NXL-F4 640W Rms Marine 4-Channel Flush Mount Amplifier

The F4 is an exact duplicate of the very popular NXL-400.4 but now offered in flat mount configuration so you can keep a flush and clean look to your install. This 4 channel amplifier is the go to source to power all your DS18 marine speakers as all are an amazing fit with this sleek and powerful hydro amp.