Ebtech LLS-2 Line Level Shifter 2-Channel Box<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Increase or decrease signal voltage -10dBV and +4dBu without adding noise </span></li><li><span class="a-list-item"> Also contains hum eliminator technology </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/51C7sclYITL.jpg" noproxy>