Whirlwind SP1X3<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> The SP1X3 provides one direct and two transformer isolated outputs， respectively， from a mic level input. Each transformer isolated output on these devices features a ground lift switch. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41w4JZ7LkwL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51GWleWq4hL.jpg" noproxy>