Wiardgroup

Hey all, just bumping this as I got no replies last time :( Can anyone
help? Is the advanced Boogie manual still in the works?

Previously Grant has stated that his page about the Matrix 12 filter chip:

http://www.musicsynthesizer.com/Circuitry/Multi-Function%20VCF.htm

is essentially also possible with the Boogie.

I am a little confused about how to obtain these 16 different filter
responses (listed in the picture at the bottom of the above page). I
understand that:

A) FA FB FC FD corresponds to the Boogie's 6,12,18 and 24 dB outputs

B) An external 4 input mixer is needed

C) The jumpers on the circuit board of the Boogie need to be in the
out of phase position

But what I don't really understand is exactly how to patch them all
up, and what the "zero's" and "one's" mean in the picture (I am
assuming "zero" means OFF, i.e. not used/patched at all, and that
"one" means ON, or fully up on the mixer?) For example, if I want a 3
pole hi-pass then I just mix the 6dB (FA) and 24dB (FD) together, yes?
But what if I want the 4 pole bandpass - that means not mixing ANY of
the outputs, and therefore no signal? That seems strange!

Please enlighten us! I want to know how I can really obtain 16
different filter type responses from my Boogie! I am sure I am missing
something obvious...

Best wishes,

Gregg