GEMINI PMX20

for VirtualDJ 2018+ Last Update : October 2018

SETUP

STEP 1 : CONNECTIONS

Connect your amplifier of a pair of amplified speakers to one of the XLR/RCA Master Outputs at the rear panel.
Connect the USB socket at the rear panel of the PMX20 to a USB port of your computer, using standard USB cable
Optionally connect your CD Players/Turntables or any other analogue source to the CH1 to CH4 Input sockets at the rear panel
Connect the PMX20 to an AC Plug and power on the unit, after all connections are made.

STEP 2 : DRIVERS & FIRMWARE

Drivers :
For Windows computers, download and install the Gemini ASIO drivers from https://geminisound.com/pages/downloads
No drivers is required to be installed for Mac OSX computers.

Firmware : Make sure your unit is updated to the latest firmware from https://geminisound.com/pages/downloads

STEP 3 : VirtualDJ Setup

Download and install VirtualDJ from http://www.virtualdj.com/download/index.html (in case you have not done already)

Once VirtualDJ is opened, a Connect Window will appear to enter your account credentials.

A Pro Infinity or a Pro Subscription License is required to fully use the Gemini PMX20. Without any of the above Licenses, the controller will operate for 10 minutes each time you restart VirtualDJ.
http://www.virtualdj.com/buy/index.html

The Gemini PMX20 is also operating with the bundled VirtualDJ Limited Edition., which also allows DVS (see Advanced Setup)

A detection window will appear when the unit is first connected with VirtualDJ, verifying proper connection.

Click on the "PMX20" button if your speakers are connected to the Master Output at the rear panel of the PMX20.
You can still make changes in the Audio setup from VirtualDJ Settings->AUDIO tab.

An additional Enter code button will be available, if your Account does not offer a Pro or Plus License or you have skipped the Login process.
Click on this button and enter the Keycode (serial) of your VirtualDJ LE.

On the PMX20, use the MIDI/USB buttons on each channel to enable the Midi operation.

Make your selections and press OK.

The unit is now ready to operate.

TOP PANEL CONTROLS

CONTROL

ACTION

1 CROSSFADER

Blends Audio signal from left/right assigned channels

2 VOLUME

Adjust the Output Volume of each Channel. The series of leds next to each Volume fader indicate the pre-fader output level of each channel

3 MASTER VU METER

This series of leds indicate the output level of Left/Right stereo channels of the Master Output

4 CUE

Use these buttons to send the pre-fader audio signal of each channel to the Headphones channel for pre-listening

5 FX SEND

If an external Effect generator device is connected at the reap panel to SEND/RETURN sockets, use these buttons to send (and receive) the processed audio signal of each channel from that device

6 FILTER

Apply a High/Low Pass Filter to each channel. When in middle position, no Filter is applied.

7 EQUALIZER

Adjust the 3 Equalizer bands (High/Mid and Low) for each channel.

8 GAIN

Adjust the pre-fader output level of each channel.

9 USB

Use these buttons to select the source of each mixer channel. When disabled/off, the audio signal from the source connected to the respective Input CH (rear panel) wil lbe routed to the mixer channel and the respective VirtualDJ deck will be muted. Enable (led ON), to allow control and audio signal from a VirtualDJ deck.

10 MASTER VOLUME

Adjust the output volume of the Master Output (connection at the rear panel)

9 BOOTH VOLUME

Adjust the output volume of the Booth Output (connection at the rear panel)

12 RETURN

Adjust strength of the signal coming from the Return Input (rear panel)

13 MIC CONTROLS

Adjust the output volume of the Microphone Input (connection at the rear panel), turn on/off the Microphone or enable the TALK OVER to automatically reduce output level when signal is detected from the Microphone Input.

14 CUE/PGM

Blends audio signal from Master Output (when in PGM) and channels that have the CUE enabled (when in CUE) and sends to the Headphones Output (connection at the front panel)

15 CUE LEVEL

Adjust the volume of the Headphones Output (connection at the front panel)

16 BACK

Use this button to set focus to the Folders list of Browser. If focus is on the Folders List, use this button to open/close sub-folders.
When the SAMPLES buttons is pressed, use this button to select the next available Sampler Trigger mode (on/off, hold, stutter and unmute)

17 FWD

Use this button to set focus to the next Browser window/list (Folders, Files, Sideview).
While the SAMPLER button is pressed, use this button to load and select the next available Sampler Bank

18 LOAD

Press to load the selected track from Browser to deck 3,2,1 or 4.

19 TRACK SEARCH

Scrolls though files or folders depending on the selected Browser window.
When focus is on Folders list, push to set focus to the Files/Tracks List.

While the SAMPLER button is pressed, use this encoder to adjust the Sampler Master Volume

20 EFFECT 2 - ON

Use this button to toggle between FX Select and FX Param modes.

21 EFFECT 2 - KNOB

When the FX Select mode is enabled (default mode - EFFECT 1 - ON is off) use this knob to adjust the 2nd Parameter of the selected Effect on Left/Right assigned Deck.
When the FX Param mode is enabled (EFFECT 1 - ON is on) use this knob to select the Effect for the Left/Right assigned Deck

22 EFFECT 1 - ON

Use this button to enable/disable the selected Effect on Left/Right assigned Deck

23 EFFECT 1 - KNOB

Adjust the 1st Parameter of the selected Effect on Left/Right assigned Deck

24 LOOP SIZE

Halve (anti-clockwise) /Double (clockwise) the size of the Loop

25 LOOP ON

Enable/disable an auto-loop of the selected size in beats for the Left/Right assigned deck

26 DECK ASSIGN

Use these buttons to assign a deck as Left/Right. The Effect, Loop and Pads section of the PMX20 will apply their assigned functions to the selected Left/Right deck.
Use the left-side button 1 to assign Deck 1 as Left deck
Use the left-side button 3 to assign Deck 3 as Left deck.
Use the right-side button 2 to assign Deck 2 as Right deck
Use the right-side button 4 to assign Deck 4 as Right deck.

27 CUES

Sets the 8 colored Pads to Hotcues mode.

28 SAMPLES

Sets the 8 colored Pads to Sampler mode.

29 PADS

In Hotcues mode : Use the pads to assign Hotcues 1 to 8 or jump to their stored positions if not assigned. Hold CUES button down and then press a Pad to delete its stored Hotcue.
In Sampler mode : Use the pads to trigger samples 1 to 8 from the selected Sampler Bank. Depending on the selected Trigger mode, you may find useful to stop a playing sample, by holding down the SAMPLES button and pressing the related pad.

30 EFFECT 1 - KNOB

Connect a pair of Headphones to this socket (for pre-listening) using a 1/4" cable/plug

31 CURVE CONTROL

Use this knob to adjust the curve/slop for the Crossfader (smooth when at minimum position, cut/scratch when at maximum)

REAR PANELS

Gemini PMX20 - Rear panel

CONTROL

ACTION

32 POWER

Connect PMX20 to an AC socket and power on when all other connections are done

33 MASTER XLR

Balanced Master Output. Connect your amplifier (or a pair of amplified speakers) to this output using standard XLR cables. The level of this output is controlled by the MASTER VOL knob at the top panel

34 MASTER RCA

Alternative unbalanced Master Output. Connect your amplifier (or a pair of amplified speakers) to this output using standard RCA cables. The level of this output is controlled by the MASTER knob at the top panel

35 BOOTH

Secondary unbalanced Output. Connect your amplifier (or a pair of amplified speakers) to this output using standard RCA cables. The level of this output is controlled by the BOOTH knob at the top panel

36 REC

Recording unbalanced Output. Connect a Recording device to this output to record your mix

37 USB

Connect this socket to a USB port of your computer using standard USB cable to allow your computer software to receive and send data to the PMX20

38 CH1 to CH4 Inputs

Connect your analogue sources/devices to these sockets. The audio signal of these sources will be routed to the Master Output in the following cases.
- VirtualDJ (or other supported application) is not running (stand-alone)
- VirtualDJ is running, the PMX20 is set to Hardware (Mixer) mode and the USB buttons are turned off
- VirtualDJ is running with Timecode inputs set in Audio Setup (signal of the Timecode sources) will be muted from output and will be routed to VirtualDJ for DVS control.

39 PH/LN

Set these switchers to PH position if you have connected devices to the CH1-CH4 inputs respectively, without pre-amp such as Turntables. Set to LN position in other cases.

40 MIC IN

Connect a Microphone to this input, using XLR or 1/4" cable/adapter. The level of the Microphone audio signal is controlled from the MIC LEVEL knob at the top panel. Note that this input is not part of the USB Audio interface, thus the Microphone of the PMX20 cannot be included in the VirtualDJ Audio setup, nor can be controlled or recorded.

41 EFFECT SEND/RETURN

Use these sockets to connect an external Audio Effect generator device, to receive audio signal from the PMX20 channel (when the FX SEND button is enabled) and return its processed signal adjusted by the RETURN knob at the top panel.
This procedure is not operated by VirtualDJ

ADVANCED SETUP

MIDI MAPPING

The unit should be visible in the CONTROLLERS tab of Config and the “factory default” available/selected from the Mappings drop-down list. The factory default Mapping offers the functions described in this Manual, however those can be adjusted to your needs via VDJ Script actions.

Read further details at
http://www.virtualdj.com/manuals/virtualdj8/settings/controllers.html
http://www.virtualdj.com/wiki/VDJ8script.html

AUDIO Setup

Default Audio setup

The unit has a pre-defined Audio setup and a special button in the AUDIO tab of Config to provide that.
If the pre-defined audio setup is selected, speakers and Headphones need to be connected to the unit at the rear and top side panels respectively.

MIXER MODES

The Gemini PMX20 can operate in 3 modes, the MIXER (Hardware) mode, the DVS mode and the MIDI (Software) mode.

MIXER MODE

This mode is the default and auto-selected on every power-cycle. In this mode, the audio mixing (Volume, Equalizer, Filter and Crossfader) is performed by the PMX20. All the previously mentioned mixer elements, will still send Midi signal, thus the corresponding elements on the GUI of VirtualDJ will follow the movements and positions of the hardware ones. However, the GUI elements will not control the mixing (fake mixer mode). The Audio Interface of this mode is 8 channels out, without any input channels, so no DVS control is offered in this mode.
Every mixer channel can have a VirtualDJ or an external device (connected to the CH Inputs at the rear panel) as source, selected by the USB buttons at the top panel.
When the USB button is turned on (led is lit), the audio signal from the respective VirtualDJ will be passed to the PMX20 channel.
When the USB button is turned off (led is off), the audio signal from the external source will be passed to the PMX20 mixer channel and the respective VirtualDJ deck will be muted.
Up to 4 VirtualDJ decks can be controlled from the PMX20 in the Mixer mode.

MIDI MODE

In this mode, the audio mixing (Volume, Equalizer, Filter etc) is performed by VirtualDJ and a different sound card (other than the builtin of the PMX20) can be used as well. The USB Audio interface of the PMX20 does not offer Timecode/DVS Inputs in Midi mode and up to 4 VirtualDJ Decks can be controlled from the PMX20.
The external sources (connected to the CH Inputs at the rear panel) cannot be used in the Midi mode and the USB buttons will remain on.

TIMECODE/DVS MODE

In this mode the USB Audio Interface of the Gemini PMX20 turns into 4out/4in channels, offering control of 2 VirtualDJ Decks (the middle ones) along with DVS/Timecode controls. The outer PMX20 mixer channels 3 and 4 can be used to route signal from externlal sources, but cannot control any VirtualDJ Deck.
Note: Timecode control requires one of the following licenses..

Pro Infinity
Timecode Plus license
Limited Edition keycode (serial) of Gemini PMX20 (comes with a special Timecode additional license - which requires online login for the extra license to be validated, at least once).

How to switch between the 3 modes
Hold down the USB/MIDI button on Channel 3 (first from left) for more than 4 seconds (will blink for a while) and then release for the Mixer (default - Hardware) mode to be selected.
Hold down the USB/MIDI button on Channel 1(2nd from left) for more than 4 seconds (will blink for a while) and then release for the DVS mode to be selected.
Hold down the USB/MIDI button on Channel 2 (3rd from left) for more than 4 seconds (will blink for a while) and then release for the Midi (Software) mode to be selected.

Each time a selection of a Mode is made, VirtualDJ will automatically apply the necessary Audio setup for the selected mode.

Important Do not change the Audio Setup manually, unless you are certain of the selected mode. Prefer to allow VirtualDJ to automatically set it up for you when the mode is selected via the long-press of the USB buttons as described above.

Audio Setup for MIXER (default Hardware) mode

Audio Setup for DVS mode

Audio Setup for Midi mode

RECORDING

When mixing with VirtualDJ, your mix can be recorded in the following cases.

The PMX20 is set to Software/MIDI mode. In this case (with Master & Headphones as Audio setup), all you need to do is to use the REC button in the MASTER Mixer panel of VirtualDJ GUI to record your mix. However, the Microphone input of the PMX20 will not be recorded
The PMX20 is set to Hardware(MIXER or DVS) mode. In this case, you will need to route the Master Output from either the BOOTH or REC Output to an Input of another USB Audio Interface and add a record line in your Audio setup.
In the following example, we have connected the REC Output with the Input of a USB Audio Interface using standard 2xRCA to 1/8" stereo jack, and we have added a record line using the input of that sound card

Hardware mode - Audio setup with external Recording Input

Note that in case of recording externally (using the REC OUT routed to a different sound card), all inputs (from CH1 to CH4 sources) and the Microphone of the PMX20 will be also recorded along with your mix

For further software settings please refer to the User Guide of VirtualDJ 8. http://www.virtualdj.com/manuals/virtualdj8/index.html

For further Technical features and specifications, visit
Gemini PMX20
Product's Page

Hardware Integration Department 2018 - ATOMIX PRODUCTIONS

Reproduction of this manual in full or in part without written permission from Atomix Productions is prohibited.