Replaceable crossfader with slope control

Buy at www.musicianscart.com Numark M6 USB 4-channel DJ Table Top Mixer M6USBBLACK,Four input channels, each with gain, three-band EQ, and LED metering,USB computer connection for playing and recording with Mac or PC,Play music from music-player software,Record your mix to your computer,Multiple phono, line, and mic inputs,Dedicated XLR mic channel and additional mic input on channel 4,Replaceable crossfader with slope control,Assign any channel to either side of the crossfader,Class Compliant: this product is immediately compatible with every current and future version of Mac OS X and iOS and with Windows (98SE and up) operating systems.