Dave Smith Instruments MOPHO KEYBOARD - Manual (Page 44)

Using Poly Chain
Mopho’s Poly Chain output enables it to be connected to other DSI synths for up
to 17-voice polyphony. Products that can be chained include the Tetra, Prophet
'08 (module and keyboard), desktop Mopho, and a second keyboard Mopho. It
will not chain with the Evolvers and Poly Evolvers due to the different voice
structures.
Note data from Mopho’s keyboard is intelligently processed so that, when one
synth’s maximum polyphony is reached, additional notes are passed through the
Poly Chain output and routed to the next synth in the chain. All that is required
is a single MIDI cable for each of the chained synths and a mixer for combining
the audio outputs.
Tetra is the best candidate for poly chaining with the Mopho Keyboard; the
voice architecture and programmable parameters are identical. The desktop
Mopho or Prophet ’08 will also work, but there are some differences between
these synths and the Mopho Keyboard:
• The desktop Mopho’s Feedback Gain control is not programmable and may
need to be tweaked manually to match the Mopho Keyboard. Programs that
don’t use feedback sound the same on both models.
• The Prophet does not have feedback or sub octave generators.
• Both the Prophet and Tetra have two layers for stacked and split programs;
Mopho does not. When Prophet or Tetra programs are loaded into Mopho,
layer B is ignored.
You should have the same programs loaded into all the chained synths. The
easiest way to do that is to use the Dump command in the Global menu to dump
the programs via MIDI from one synth to the other(s).
The Poly Chain parameter is in the global menu. On the Mopho Keyboard, set
Poly Chain to the number of additional voices that will be chained: Out 1 (for
poly chaining a Mopho), Out 4, Out 5, Out 8, Out 12, or Out 16. Refer to the
illustration on page 40 for examples of the Poly Chain settings on the slave
units.
You can now virtually ignore the slave unit or units, since the controls on the
master will control all units as if they were a single synth. This includes saving a
program; if you save an edited program on the master, it will also save the
program on the slave(s).
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