rolls DB24 Rolls Stereo Direct Interface<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> This unit is a two channel isolation device designed to connect high impedance devices to low impedance. </span></li><li><span class="a-list-item"> The unit is completely passive， and utilizes Rolls proprietary audio transformers for superior sound. </span></li><li><span class="a-list-item"> A heavy duty steel chassis was chosen to provide maximum reliability when used in demanding live sound reinforcement applications. </span></li><li><span class="a-list-item"> A variety of inputs are provided including stereo and mono 1/4-in ， stereo RCA， and stereo 1/8-in (3.5mm). </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41KJlQN8nOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41BeF2r5bML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31JGXdU5lBL.jpg" noproxy>