Pioneer DJ DJM A9
"4-channel professional DJ mixer.
The 4-channel DJM-A9 raises the bar for club standard mixers – boasting huge upgrades compared to its predecessor, the DJM-900NXS2 – with stunningly clear sound quality, enhanced playability and connectivity, and a host of new features to help you take your performances to the next level. The DJM-A9 has also been improved as a musical instrument for more emotional and dynamic performances, while retaining the functions and layout that have become club standards."