In Stock. The X-15 offers eight stereo inputs (2 phono, 6 line), while the more flexible X-17 provides four switchable phono/line inputs as well as four dedicated line inputs. Both mixers have two mic inputs, balanced XLR and unbalanced RCA master outputs and 3-band EQ on each channel. You'll also get a set of pro features like fader start on all four channels, dedicated booth and record outputs and a replaceable crossfader. Plus, the X-15 and X-17 are intended to easily fit into a compact mobile DJ system, with standard 19" 4U rackmount enclosures.