To use CEM or not.

[tomg]

> Definitely use analog switches; like some of the Maxim devices which
> handle +15/-15V signals unlike the old 4066.
> 
> Seems like I heard the 3320 was not that great a filter, but I could be
> wrong. Must be some reason there are soooo many left....Maybe phasing is
> it's forte?
> 
> TomG; have you tried this?

No...not phasing anyway. It's not really configured very well for phasing.
I might try it thought. I played around with this one a bit. It's a good
filter. 
Nobody complains about the sound of the OB-8. It's the one CEM thats 
set up like building blocks. You have access to all 4 stages in/out pins. 
You could build a 4 channel fader with it. That makes it a little harder to

use than most CEM filters but more flexible. If it just had feedback from 
the res gm stage on it's own pin rather than internally connected to pin 
1 it would  be absolutely killer... oh-well can't have everything I guess.
I
thought it might make a good state-variable?

OBs with this filter -- Maybe others??
OB-Xa  2 1-4pole 1-2pole
OB-Sx 1 2pole
OB-8   1 2/4 pole selectable

-tg