If you morphed from LP to HP without the BP you would naturally get a notch
in the middle.
John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.comThe Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com > -----Original Message-----
> From: mate_stubb [mailto:mate_stubb@...]
>
> The SEM filter is state variable 2 pole, so is not as dark as a 4
> pole filter. The only other 2 pole available right now from MOTM is
> the 420 (the upcoming 480 will be also).
>
> The SEM has a continuously variable control to morph from LP to BP to
> HP, not sure if you can get to notch too. It can sound nasally if you
> use BP or HP, naturally. Otherwise I'd call it "warmly aggressive"
> <g>. Listen to the Weather Report classic "Birdland" (not the synth
> bass intro which is 2600, but the polyphonic synth brass lines which
> are Obie 4-Voice).
>