Poly chaining a MoPho Keyboard to a MoPho Desktop

To get started, the OS on each instrument should be updated to the latest version:

http://www.davesmithinstruments.com/support/current_os.php

You'll also need a single MIDI cable, 2 sets of stereo audio cables, and 4 free inputs (or 2 stereo inputs) on your mixer/sound card.

Next, perform a MIDI program or bank dump either from the Mopho Keyboard to the Desktop unit, or from the Desktop unit to the MoPho Keyboard. This copies the current program or bank on the Keyboard to the Desktop unit or vice versa.

To dump programs from the MoPho Keyboard to the MoPho Desktop, connect the MIDI Out (or Poly Chain out) of the MoPho Keyboard to the MIDI In of the MoPho Desktop.

On the MoPho Keyboard:

1) Enter the Global Parameters menu by pressing and holding the button labeled "Program" for 2 seconds.

2) Using the Param 1 knob, navigate to the menu item labeled "Dump". Use the Param 2 knob or the +Yes/-No buttons to set it to "CurrentProgMopho" to dump the current program, or "CurrentBankMoPho" to dump the current program bank.

3) Hit the button labeled "write" to complete the program MIDI dump.

To dump programs from the MoPho Desktop to the MoPho Keyboard, connect the MIDI Out of the MoPho Desktop to the MIDI In of the MoPho Keyboard.

On the MoPho Desktop:

1) Enter the Global Parameters menu by pressing and holding the button labeled "Program Mode" for 2 seconds.

2) Using the Program knob, navigate to the menu item labeled "Dump". By default it is set to "Current Program", which will dump the current program, or navigate to "Current Bank" by using the +Yes/-No buttons to dump the current program bank.

3) Hit the button labeled "Write" to complete the program MIDI dump.

Once the programs have been dumped connect the MoPho Keyboard's poly chain Out to the MoPho Desktop's MIDI In.

Settings on the MoPho Keyboard:

1) Enter the Global Parameters menu by pressing and holding the button labeled "Program".

2) Using the Param 1 knob, navigate to the menu item labeled "MIDI channel".  Set the MIDI channel to ALL or a specific MIDI channel using the Param 2 knob or the +Yes/-No buttons.

3) Using the Param 1 knob, navigate to the menu item labeled "Clock".  Set the MIDI clock to "Out" using the Param 2 knob or the +Yes/-No buttons.

4) Navigate to the menu item labeled "MParam Send".  Set it to "NRPN".

5) Navigate to the menu item labeled "MIDI Sysex".  Set it to "On".

6) Navigate to the menu item labeled "PolyChain". Set it to "Out 1".

7) Set the Volume knob to maximum.

Settings on the MoPho Desktop:

1) Enter the Global Parameters menu by pressing and holding the button labeled "Program Mode".

2) Using the Program knob, navigate to the menu item labeled "MIDI channel".  Using the +Yes/-No buttons, set the MIDI channel to ALL or the MIDI channel which matches the channel set on the Mopho Keyboard.

3) Using the Program knob, navigate to the menu item labeled "Clock".  Set the MIDI clock to "In" using the +Yes/-No buttons.

4) Navigate to the menu item labeled "MParam Rec".  Set it to "ALL".

5) Navigate to the menu item labeled "MIDI Control".  Set it to "On".

6) Navigate to the menu item labeled "MIDI Sysex".  Set it to "On".

7) Navigate to the menu item labeled "PolyChain". Set it to "OFF".

8) Set the Volume knob to maximum.

If you haven't already done so, now is a good time to connect the audio outputs from the MoPho Keyboard and the MoPho Desktop to the free inputs in your mixer/sound card.

You should now be set to play the Mopho Keyboard in a Poly Chained configuration.  Hit two keys on the Mopho Keyboard and listen for two separate notes playing. If you hear both notes, the Mophos have been configured correctly. 

Use your mixer/sound card to balance the levels between the Keyboard and the Desktop. Leave the MoPho Desktop's volume knob at maximum, and you can now use the MoPho Keyboard's volume knob to adjust the volume of both synths simultaneously.