Ebtech HE-8 Hum Eliminator 8-Channel Single Space Rack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Simply plug between the offending pieces of equipment to eliminate hum </span></li><li><span class="a-list-item"> Uses 1:1 isolation transformers to break loop antenna and balance audio lines </span></li><li><span class="a-list-item"> Also converts balanced and unbalanced signals </span></li><li><span class="a-list-item"> 1/4" jacks can accept any combination of mono or stereo plugs </span></li><li><span class="a-list-item"> Passive device No power required </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/3129pTx0fJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Uq4IMZt4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41XWkpUpHeL.jpg" noproxy>