Numark CDN25 Guide D'utilisation Simplifié page 5

BEAT MATCHING USING PITCH BEND
If you find the BPM's (Beats Per Minute or Tempos) are the same, however, the drum beats are not matched you will need to temporarily
change the pitch. The illustration below shows how to match the beat of PLAYER 2 to the beat of the music being played on PLAYER 1.
(This procedure can be done on either PLAYER).
After matching the BPM's adjust the pitch temporarily as follows:
When PLAYER 2 is rotate the jog wheel counter clockwise When PLAYER 2 is behind rotate the jog wheel clockwise
The pitch changes automatically while the jog wheel is rotated. The faster you rotate the wheel the more you change. Releasing the wheel results in
a return to the original pitch. (So the BPM's are once again the same.)
EXAMPLE OF MIXING USING BOTH PLAYERS OF YOUR CD PLAYER
While playing a disc on PLAYER 1, load a disc into PLAYER 2 and select your next track, match its pitch to the track playing on PLAYER1 and when you
are ready use the crossfader on your mixer to fade from PLAYER 1 to PLAYER 2.