Art Dualxdirect Dual Professional Active Direct Box<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Fully active design </span></li><li><span class="a-list-item"> Phantom voltage or 9V battery powered </span></li><li><span class="a-list-item"> Converts high-impedance balanced / unbalanced inputs into 600 Ohm balanced outputs </span></li><li><span class="a-list-item"> Switchable input attenuation (0， -30 dB) </span></li><li><span class="a-list-item"> 1/4" TRS / XLR combo connector inputs </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41CVPijB2oL.jpg" noproxy>