Wet Sounds HTX-4 600W RMS 4-Channel HTX Series Class D Full-Range Marine Amplifier<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>150 Watts x 4 Channels @ 2 Ohms， 100 Watts x 4 Channels @ 4 Ohms</li><li>300 Watts x 2 Channels @ 4 Ohms Bridged Mono</li><li>Heavy duty aluminum alloy heat-sink for extreme heat dissipation. Completely sealed， salt-water compliant high mass heat sink.</li><li>Full Warranty when purchased from an AUTHORIZED Dealer.</li><li>See website for more information.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41MTPcwPgmL.jpg" noproxy>