USB Integration and MP3 Playback
The CDJ-400’s cosmetic design is simple and compact yet elegant with all of its various controls and features located directly on top of the unit. A USB port found on the face of the player allows DJs to play their MP3 music collection from a wide variety of portable music devices such as thumb drives, MP3 players or external hard drives. With the use of a multi-function selector knob/button and its large, bright, dot-matrix LCD display, locating and accessing of files from these types of music devices as well as MP3 music files on CD and CD-R/RW through the CD slot are done with a turn and press of the knob.

DJ Software Compatibility and MIDI Control
With more of today’s DJs utilizing different DJ software for their performances, the CDJ-400 is also equipped with a PC mode. In this mode, the CDJ-400 is a native controller for software such as Pioneer DJS computer software and SERATO® Scratch LIVE. For example, the movement of the pitch slider on the CDJ-400 can control the pitch slider on the computer software and no timecode CD is required for audio control. The player can also act as a MIDI controller where the user can assign virtually every button on the player to trigger functions of various DJ software programs.

World’s First Scratch Jog Effect
A highlight and an advancement of the CDJ-400 is its scratching capability. In addition to traditional “vinyl” mode scratching, Pioneer implemented the World’s First Scratch Jog Effect. Three highlighted buttons, each assigned to a special effect, Bubble, Trans and Wah, creates unique scratching sound effects that can be enabled by the DJ on the fly. A “hold” button was also added to retain the different effects throughout the session or until its release, which can also be triggered at any point of play.

Other Performance Features:

• Digital Loop functions: A variety of loops can be created for additional audio effects.
• Beat Loop: Automatically creates a four beat loop based on the tempo of the music (BPM) being played.
• Loop Divide: Rhythmically divides the loop to create different patterns.
• Hot Loop: Restarts the loop seamlessly from its entry without interruption of the music.
• Digital Jog Break: In CD mode the CDJ-400 contains three effects, Jet, Roll and Wah, which further enhances the audio by simply rotating the jog dial. The same buttons for the Scratch Jog Effect are assigned to the Digital Jog Break which are accessible at any point of play.
• Tempo Control: Four tempo modes, ±6%, ±10%, ±16% and WIDE, provide additional speed control with a resolution of 0.02% in the 6% range.
• Cue/Loop Points: Up to 10 cue/loop points per disc, for up to 920 discs, can be stored to player’s memory.
• Jog Indicator: A red halo illumination around the jog provides instantaneous visual feedback to the DJ.
• Customizable Jog Wheel: Users can create their own customized image to insert under the removable jog wheel top.
• Digital Output: A digital output is available for a direct connection for clearer sound to a connected mixer.
• Resume Function: The function takes effect if a CD is ejected accidentally. Once the DJ re-inserts the disc, it automatically starts playing from exactly the point where it stopped.