Filters and more
Although there are dedicated knobs on the DJX-II/B to vary the Cutoff and Resonance of the filter, they only control MIDI channels 9 to 16. Another drawback is that in
user patterns they adjust all 8 channels at the same time.
As the DJXII responds to the same MIDI controllers as used in Yamaha's XG format, it's possible to use an XG mixer map in Cubase to vary the Filter Resonance, Reverb, Chorus etc. The main advantage being that you can set individual values for each of the channels.
Cakewalk users are even more fortunate as there is a dedicated
studio panel available for the original DJX, which also works perfectly well with the DJXII.
I can't get Channel 4
The DJXII is actually 15 part multi-timbral as MIDI channel 4 is reserved and does not respond to MIDI note messages.