The Official DSI/Sequential Forum

Info on Polychaining two Prophet 6's

Info on Polychaining two Prophet 6's
« on: January 12, 2018, 05:14:00 PM »
I am thinking of getting a desktop Prophet 6 module to expand my keyboard Prophet 6. How do you connect them so that polychain works? What other advantages do you get besides 12 voices when playing the keyboard? If I change a parameter on the keyboard, does it change on the module? Any information on the benefits of this would be appreciated.

Joseph Akins
Joseph Akins
Professor - Composer - Pianist - Synthesist

Re: Info on Polychaining two Prophet 6's
« Reply #1 on: January 12, 2018, 05:47:13 PM »
I am thinking of getting a desktop Prophet 6 module to expand my keyboard Prophet 6. How do you connect them so that polychain works? What other advantages do you get besides 12 voices when playing the keyboard? If I change a parameter on the keyboard, does it change on the module? Any information on the benefits of this would be appreciated.

Joseph Akins

https://www.davesmithinstruments.com/wp-content/uploads/2016/05/Prophet-6-OS-1.3.1-Addendum.pdf?x72411

To poly chain two Prophet-6 synths:

  • With a MIDI cable, connect the rear-panel midi out of the first Prophet-6 (the master) to the midi in of the second Prophet-6 (the slave).
  • On the master Prophet-6, press the globals button then press program selector button 9 (midi out).
  • Use the bank/decrement and tens/increment to select ply (poly).
  • Press the globals button twice to exit globals mode.
The two synths are now poly chained. You can now play up to twelve notes simultaneously.

As for the parameters, you could do this in a variety of ways (NRPNs being the best possible option IMHO).
« Last Edit: January 12, 2018, 05:49:26 PM by DavidDever »
Sequential / DSI / Pioneer stuff: Prophet-12 desktop, Pro-2, AS-1, Prophet-600 Gligli, Prophet 2000

Re: Info on Polychaining two Prophet 6's
« Reply #2 on: January 13, 2018, 08:51:49 AM »
Thanks DavidDever. That gets me closer to understanding this application. I assume that you will want to have the same patch loaded on both instruments so that the "extra" notes will be the same sound. And if you modify the sound with a knob turn, you want it to change on both devices (you mentioned that this could be done a number of ways). And if you want to save the changes, you'll need to do it on both devices. Am I thinking of this correctly?

Joseph Akins

Joseph Akins
Professor - Composer - Pianist - Synthesist

Pidcin

  • **
  • 109
Re: Info on Polychaining two Prophet 6's
« Reply #3 on: January 13, 2018, 09:12:15 AM »
Is it possible to poly chain other devices ? Such as a tempest ?

Re: Info on Polychaining two Prophet 6's
« Reply #4 on: January 13, 2018, 03:45:54 PM »
Thanks DavidDever. That gets me closer to understanding this application. I assume that you will want to have the same patch loaded on both instruments so that the "extra" notes will be the same sound. And if you modify the sound with a knob turn, you want it to change on both devices (you mentioned that this could be done a number of ways). And if you want to save the changes, you'll need to do it on both devices. Am I thinking of this correctly?

If the slave unit is set up to receive NRPNs transmitted over MIDI from the master, the only thing you'll need to do is to save the modified patch at the slave (in addition to saving it in the same location on the master).
Sequential / DSI / Pioneer stuff: Prophet-12 desktop, Pro-2, AS-1, Prophet-600 Gligli, Prophet 2000

Re: Info on Polychaining two Prophet 6's
« Reply #5 on: January 14, 2018, 10:44:27 AM »
I got to polychain my Prophet-6 with a module in a store here and honestly the best way to utilize both for me was to layer them. This way you can have two sequences going at once, have a sequence going on one while you are doing a lead on the keyboard. I also love turning down the program volume on one and slowly turning it up to bring it underneath a layer.

Honestly it was so good I was contemplating actually building a dual keyboard synth with two P6 modules but it be an expensive endeavor and I'm not sure DSI would help me with parts for it.

Re: Info on Polychaining two Prophet 6's
« Reply #6 on: January 15, 2018, 01:10:10 PM »
Thanks everyone for your feedback.
Joseph Akins
Professor - Composer - Pianist - Synthesist

Pidcin

  • **
  • 109
Re: Info on Polychaining two Prophet 6's
« Reply #7 on: January 15, 2018, 10:08:23 PM »
In chaining them..

are we able to use 4 independent oscillators with independent timbres ? Or does it simply mirror the oscillators of the master ?

 Do you have the ability to route the LFO from the master keyboard independently of the slave ? Like having 2 LFOs doing independent LFO modulations with the capability of sending the destination to the mod wheel . IE can prophet 6 (A) have PWM with a square wave LFO with a independent rate of 1/8D routed to the mod wheel going , while prophet 6 (B) has all a typical triangle LFO with 16th rate set to the master sync doing frequency for vibrato , also routed to the respective mod wheel for prophet 6 (B)

Are envelopes doubled up? Could you do a HP filter with a positive EG and the DECAY set to max so it sweeps through while having the LP filter on the other chained prophet do the same thing so you get a band pass effect ?

OR is it just another $4000 CDN purchased to have a glorified 12 voice sequential prophet ?

ALSO , is it chainavle to other devices like the OB6 , or the Tempest ( having 4 oscialltors for like 6 fat saw waves ? )

Thanks

Nick

Re: Info on Polychaining two Prophet 6's
« Reply #8 on: January 16, 2018, 05:10:19 AM »
In chaining them..

are we able to use 4 independent oscillators with independent timbres ? Or does it simply mirror the oscillators of the master ?

 Do you have the ability to route the LFO from the master keyboard independently of the slave ? Like having 2 LFOs doing independent LFO modulations with the capability of sending the destination to the mod wheel . IE can prophet 6 (A) have PWM with a square wave LFO with a independent rate of 1/8D routed to the mod wheel going , while prophet 6 (B) has all a typical triangle LFO with 16th rate set to the master sync doing frequency for vibrato , also routed to the respective mod wheel for prophet 6 (B)

Are envelopes doubled up? Could you do a HP filter with a positive EG and the DECAY set to max so it sweeps through while having the LP filter on the other chained prophet do the same thing so you get a band pass effect ?

OR is it just another $4000 CDN purchased to have a glorified 12 voice sequential prophet ?

ALSO , is it chainavle to other devices like the OB6 , or the Tempest ( having 4 oscialltors for like 6 fat saw waves ? )

Thanks

Nick

As long as they are set to the same midi channel and layered they can be totally independent in terms of patch/pitch/LFO and everything. The pitch and mod wheel/keyboard/transpose buttons would be the only things activating the slave module.

It is chainable to the OB6 but it's much better to layer them as opposed to polychaining. Polychaining basically would be like the first 6 notes pressed would be the Prophet 6 and any remaining notes pressed would be the OB6.

Re: Info on Polychaining two Prophet 6's
« Reply #9 on: January 16, 2018, 08:45:01 AM »
I spoke with tech support for a minute yesterday about having a P6 Module connected to a P6 Keyboard with a MIDI cable (out to in). I understand that if you set the MIDI Out in Globals on the keyboard to PolyChain, the module will give you 12 voices when playing the keyboard (you likely want the same patch). If you change MIDI Out to MIDI, the module now simply layers like any slave module. I asked about MIDI connection to my DAW, and they recommend using USB in this scenario. The MIDI Out also has a selection for Both. You would use this to send MIDI data to the USB and MIDI Out ports. I think I have this correct. I haven't actually done it. Anyhow, there seems to be flexibility.

I think we just look at it like any slave module with the additional ability to choose Polychain on the keyboard and up the voice count so that you sound more than 6 notes simulataneously. If you are using a DAW, connect them with USB cables.

Joseph
Joseph Akins
Professor - Composer - Pianist - Synthesist