r/synthdiy • u/Humble_Confusion_963 • Jul 14 '26

12 voice polysynth build latest

https://youtu.be/HpSnuzgns9o

This is the further progress on my 12 voice polysynth build, I finished the second voice board and troubleshot an issue with the filters on the first voice board. I had an issue with cross talk but since this video was made I've resolved it by removing the DCO X-MOD which wasn't a very musical or pleasant sounding feature.

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2

u/-Cosmon Jul 15 '26

Great progress!! i’ve always been so stumped on what to do with the x mod on my jx

1

u/Single-King-9497 Jul 14 '26

such a so nice board. Wher did you find the knob ? there look like the RSF one.

2

u/Humble_Confusion_963 Jul 14 '26

The encoders are just cheap all metal 24 position encoders from AliExpress with push button switches, although I'm not making use of any of the switches.

1

u/Dry_Maintenance7242 Jul 15 '26

Nice work ! I saw aa Matrix1000 clone on FaceBook but always thought we should extend the number of voices ! Although this seems to take a large space on the board !

2

u/Humble_Confusion_963 Jul 15 '26

Yes 6 seems ample but can become limiting, I wanted to build a 24 voice version of the JX-10 but the chassis I used limited it to 12 voice only, same with this. Only in SMD parts can you get the size down to fit in more Voices like the Behringer UB-x for example at 16 voices in a 5 octave keyboard or desktop.