Crumar Musical Instruments User Group.

> I'm a huge fan of the SSM filter sound, but have a CEM filter Bit01
> (the rack). 

There are more than one SSM filter sounds.  The SSM244 will not sound
the same as same as the SSM2040 (early Prophet V) or SSM2045.  The 2044
in the early Bit 1 is a sort of folded up Moog ladder but with it's own
distinctive sound, the 2045 is more like a Curtis filter and the 2040 
isn't much like anything else.  Similarly, different CEM filters have
different sounds - CEM3020/3028 sound fifferent to a CEM3350 or CEM3089.

Look here for technical data on different filter chips:

http://www.synthtech.com/cem/cemsynth.html (scroll down)

and here for what filter chip is in what synth:

http://www.synthtech.com/cem/cemsynth.html
 
> I was wondering: could I simply pull out the CEM filters
> and replace them with SSMs?

Only if you like silence and smoke.  Different type of chip,
different connections on different pins.  It wouldn't work
and it would probably be an expensive experiment.

You need to buy an early Bit 1, or maybe a Siel Opera 6 / DK600
if you want the SSM2044 sound, or see the links above if you want
the SSM2040 sound.

> And yes, I'm completely ignorant of electronics. just a musician...

Nothing wrong with that.  It's people who _think_ they know about
electronics that worry me...

Does anyone know the serial number where the Bit 1 changes from SSM 
to CEM?  My Bit 1 is SSM and has a number in the 240s I think (must check). 

Does that help, or have I just muddied the water?

Steve