<div dir="auto"><div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Brian Willoughby <<a href="mailto:brianw@audiobanshee.com">brianw@audiobanshee.com</a>> skrev:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
On Oct 17, 2020, at 11:24 AM, Michael Zacherl <<a href="mailto:sdiy-mz01@blauwurf.info" target="_blank" rel="noreferrer">sdiy-mz01@blauwurf.info</a>> wrote:<br>
> On 16.10.2020, at 23:38, MTG <<a href="mailto:grant@musictechnologiesgroup.com" target="_blank" rel="noreferrer">grant@musictechnologiesgroup.com</a>> wrote:<br>
>> What CPU did Oberheim switch to for Xpander? Is that 6809?<br>
> <br>
> 2x 6809 (one main, one for the voices) - IIRC.<br>
> m.<br>
<br>
Yes, and the Matrix-12 has 3x 6809 (one main, one for each of the 6-voice boards)<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">What was the typical cost of such a synth CPU in the '80s? Compared to today's 1-2 dollar MCUs they must have been quite an investment.</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">As I noted a while back, there are pins on the main board that could allow four 6-voice boards to be attached, but that feature was never developed. Such a beast would have 5x 6809.<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">So, a Matrix-24 then? Wow. :-)</div><div dir="auto"><br></div><div dir="auto">/mr</div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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