Audioengine N22 Desktop Audio Amplifier<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> USB power， RCA and 1/8" inputs， variable line output </span></li><li><span class="a-list-item"> High quality Burr-Brown/TI headphone amp </span></li><li><span class="a-list-item"> 80W peak total (22W RMS/40W peak per channel)， AES </span></li><li><span class="a-list-item"> Designed for Audioengine P4 passive speakers </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41NPYOg%2BFjL.jpg" noproxy>