EC21 Product Catalogs - m-audio http://www.ec21.com/ec-market/m-audio.html B-52 Prodigy FX DJ Workstationhttp://chenchenrry.en.ec21.com/B_52_Prodigy_FX_DJ--3326197_3344283.htmlM-Audio Torq and all other time coded systems Kill switches for low, mid and high on each channel Connections 4 LINE20090213