Denon DN-X1700 Professional DJ Mixer The DN-X1700 represents an important achievement by Denon s R&D department, which, during the development process, worked closely with some of the top professionals in the industry, gaining key input on its design and functionality. The result is a market driven professional digital mixer that is best in its class. Years of consultation and design have gone into the development of a mixer of this caliber, and nothing in its specification and construction has been sacrificed.