Russound D850 4 Zone 8-Channel 50W Multiroom Amplifier<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> High efficiency， cool running digital amplification </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Zones are bridgeable to create flexible power configurations </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Global bus input， independent inputs per zone </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Global trigger input/output. Independent trigger input/output per zone </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Dimensions : 16.8 x 16.1 x 3.5 inches; 19 pounds </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41wfvgg0p4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mmsR%2BNdLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/411OJapLYrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Y2Ywa4JDL.jpg" noproxy>