Nady ADI-1 Active DI (Direct Inject) Box<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Eliminates impedance mismatch problems and converts any sound source at almost any level into a clean， noise-free balanced signal </span></li><li><span class="a-list-item"> Full-featured controls and connections include On/Off， Ground Lift， and Guitar/Speaker source select input attenuation switches </span></li><li><span class="a-list-item"> Unbalanced 1/4" TS input and Parallel Link Output jacks </span></li><li><span class="a-list-item"> Servo-balanced XLR output jack </span></li><li><span class="a-list-item"> Parallel link output allows ultimate hookup flexibility by enabling applications such as connection to the input of the backline or monitor amplifier </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41rJ%2BGisILL.jpg" noproxy>