Wonderful piece of hardware I have, but every time I reinstall I spend a few hours figuring out the goddamn right config to be able to start mixing or even connecting it.
For who is interested, here is how to get the combination of Pioneer DJM 2000 Nexus & CDJ 2000 Nexus working (on windows) + some tips to check what you might be overlooking.
First you need to know you can use the DJM and CDJs with MIDI, network cables, USB, CDs, first I will talking about setting it up as MIDI controller (USB). This is not the same as pluggin USB keys with tracks on it or CDs to mix.
OPTION 1: Using it as MIDI controller
Note I use Traktor Pro in this guide
1. You do not need LAN cables for setting it up as MIDI, purely leave it USB and audio (cinch or digital)
2. Let's start with the players (CDJ 2000 Nexus)
Download latest drivers
Note if using Windows 7 it goes well, if using Windows 8/8.1, the driver is somehow not really trusted requiring extra action. Will be explained later.
Once you have installed the driver, you have an entry "pioneer" in start - all programs, run "Pioneer CDJ ASIO Settings Utility"
The best is to set it to 24 bit
+ Buffer max, to avoid CPU trouble while mixing (might cause interrupts etc)
Also press utility button on the CDJ themselves and see if you have same bit rate set on the CDJs
Make sure the playback on your volume playback (rightclick volume - playback devices - Find the CDJs) corresponds to the input audio cable you plug in and corresponds to the setting on the players themselves (both)
Which cable you plugged where is depending the sound card you have
(I plugged only the DJM to Blue - Line In, rest USB, nothing else)
3. Next DJM
I plugged REC OUT on DJM to Blue Line In on PC
To hear it, make sure the cable you plugged also has volume on for your speakers playback (volume might be 0 so set it on)
Get the DJM driver (same site of pioneer)
Again in the Program files, find the DJM 2000 Settings utility
If you want to record, select 1 input
Again max buffer to avoid problems
-will continue on next page-