Cumberland, R.I. (Jan. 19, 2012) – Numark, the world's leading manufacturer of DJ technology, introduces 4TRAK, a four-deck digital DJ controller with built-in four-channel mixer and comprehensive ...

Like buttons? Numark at NAMM evidently thinks they are this season's DJ must have. The latest bit of kit to get the manual-input makeover? Its NS7 II Serato DJ controller. The second iteration of its ...