What do you get when you merge the highly successful PRO MIXER DJX750 with the super-smooth Infinium "contact-free" optical crossfader and built-in USB connectivity? You get the DJ mixer that"s sure to set a new industry standard - the Behringer DJX900USB. Contact-free Infinium crossfader. The DJX900USB features our super-smooth channel faders and the Infinium "contact- free" VCA-controlled optical crossfader for the ultimate in reliability and state- of- the- art audio performance. A dedicated CF Curve control allows you to custom-tailor the crossfader"s control characteristic, and you can even set the crossfader tension just the way you like it. Special FX. When we began design on the DJX900USB, we knew we had to do something very special. We took our best analog DJ mixer and revved up the FX processor, putting advanced parameter control right at your fingertips. No longer confined to rigid presets that limit creativity, you can change FX parameters on-the-fly, pushing your performance to the next level. In no time you can create powerful sets with your own custom-tailored effects sounds, all of which can be controlled in real-time. We also included a professional USB audio interface, so you can play tracks directly from your PC/Mac computer or an external thumb drive. Features galore. Because your voice is your instrument, the DJX900USB features a dedicated mic channel with a built-in Talkover function that automatically detects your voice and brings down the volume of the music track (referred to as "ducking"), so your voice is always out front. Vocal fine-tuning is handled by the onboard 3-band EQ, which provides up to 15 dB of boost or cut at Low (80 Hz), Mid (2.5 k), and High (12 kHz) frequency centers - for an extremely broad tonal palette. Equipped to handle any conceivable input source, these channels accept everything from line level, phono, CD and tape decks to MP3 and minidisk players.