OBERHEIM SYNTH

Hi,
 
   I think there are a few mistakes in your Google Doc description.
We can discuss it off-line if you like.   For instance, the filters are
configured as 4-pole by the way the 3396 chip is designed.  The op amp
voltages simply set the resonance and the cutoff frequency.
 
     But I am writing to ask if you have a copy of the Matrix 1000
EPROM image.  I'd like to look at the patched code for the bug fixes
and see if the same code is in the Matrix 6/6R.
 
    Thanks,
 
        Bob 



________________________________
 From: "jan@... [oberheim]" <oberheim@yahoogroups.com>
To: oberheim@yahoogroups.com
Sent: Tuesday, July 22, 2014 7:36 AM
Subject: [oberheim] Re: Dream on, geek: The Überheim Matrix-1000 Project










Just when you think that you've seen it all: This guy has already figured out how to upgrade the Matrix' filters to Xpander-like flexibility. 


MIOS Project - Oberheim - M1000 XPANDER {PCB traces uploaded} - Design Concepts

             MIOS Project - Oberheim - M1000 XPANDER {PCB tr...
MIOS Project - Oberheim - M1000 XPANDER {PCB traces uploaded} - posted in Design Concepts: ...turning a Matrix M1000 into a monster Xpander ? ...
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There are a couple of flaws, though. First, you'd have to build six PCBs and figure out how to fit them into the M-1000's housing. Second, you'd have to rewrite the firmware - and add some more CV multiplexing. But well. 



Still, I think tinkering with the M1000's hardware and firmware is well possible. I've started collecting the basic knowledge in a Google Doc - have a look, and if you'd like to add something, comment. 


Matrix-1000 Hardware Primer - Google Docs

     Matrix-1000 Hardware Primer - Google Docs
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