Infinity REF-551A Amplifier 1300W Peak (550W RMS) Reference Series Monoblock Amplifier<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>370 Watts RMS x 1 @ 4 ohms</li><li>550 Watts RMS x 1 @ 2 ohms</li><li>Total Peak Power: 1300 Watts</li><li>Variable Bass Boost: 0 to +9 dB</li><li>Heavy duty aluminum alloy heat-sink for extreme heat dissipation</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51mX-8%2Bh3FL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/510%2BGDF1eWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51iAaB7HGgL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ca%2BvHlW-L.jpg" noproxy>