> http://moogarchives.com/m907.htm
>
> Can someone explain the graph? It seems to be contradictory to
> a couple of posts about the ability to completely cut a band. It's
> been about 15 years since I had my hands on a 907.
The graph: That's the 907's frequency response with all pots up. (!)
Originally a "design fault" (intentional or not, I do not know,
and it's a sensitive topic, so don't quote me on that ...), there is
a lot of cancellation going on between the bands.
BUT this produces a wonderful coloration of the signal, and I
like it so much that I actually cloned it twice. (The first shot
wasn't good enough in SNR, but the second one is fine.)
You will really want this - just wait a few more days until I'm
sending Paul the demo samples. (Came back from an 14 hour
business trip, headache and tired.)
> Lastly, having outputs for each band (like the EMS?) would be
> nice on the MOTM FFB.
Separate outputs are contrary to the Moog Filter Bank's topology.
(I know that Wendy Carlos had hers modified with individual
outputs, but this cannot be done without compromise on other
aspects of the design.)
The EMS filter bank is nice, but very different. Designed without
that "fault", it has a very flat response when all pots are up.
A "better design" than the Moog, but less character.
I have made a clone of the EMS FB many years ago for my
personal use, but I would not contribute to a commercial
version (MOTM) of this one, or any other direct copy of EMS
products.
But apart from this "ethical" aspect, the Moog FB is the ∗really∗
interesting one anyway, because of its special character and
coloration.
JH.