[sdiy] More Roland mods: an 8-voice Jupiter 6?

[Colin f]

> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl 
> [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Amos
> Sent: 23 October 2007 01:39
> To: synth-Diy diy
> Subject: [sdiy] More Roland mods: an 8-voice Jupiter 6?

> Given that the 4-voice board (obviously) has all of the inputs
> necessary to address the four voices completely, it seems to me as
> though one could conceivably (given enough rare parts) populate the
> rest of the 2-voice board and have the beginnings of an 8-voice JP6.
> I suspect it would take a brave soul to write the necessary firmware,
> but since the Europa mod proves that an updated microprocessor can be
> wedded to the JP6 analogue engine, it seems to me that this 8-voice
> idea might just work.
> 
> What do you SDIY'ers think?  I'm sure someone else has considered this
> already...

I considered doing this when I had a JP6.
I mailed one of the Europa guys about it, and IIRC while the code only
needed a small change to have the second voice board run 4 voices, they
weren't too keen to support it given that there would be so little demand
for it.
I considered doing the firmware for it myself, and got as far as buying in
some of the Roland resistor arrays and IR3109s needed for the empty voices
before I got hold of a JP8 and lost interest in the JP6...
If anyone does plan on populating their second voice board, give me a shout,
you can have the arrays for cheap.

Cheers,
Colin f