BEHRINGER ULTRAGRAPH PRO FBQ3102HD<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Professional 31-band stereo graphic equalizer for live and studio applications </span></li><li><span class="a-list-item"> Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer </span></li><li><span class="a-list-item"> Ultra-low noise 4580 operational amplifiers for highest signal integrity </span></li><li><span class="a-list-item"> Dedicated mono subwoofer output with adjustable crossover frequency </span></li><li><span class="a-list-item"> Additional sweepable high and low-cut filters for each channel remove unwanted frequencies， e.g. floor rumble， hiss etc. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/4192slD3OPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Yp-yGpL0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mwxaKD3IL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41zu0TlsgrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-7nk51F3L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41TFkDcVLYL.jpg" noproxy>