User Manual

PATCH EXAMPLES 
With two separate multimode filters that can also be combined and routed in either series or
parallel, there’s a wealth of dual-filtering effects just a tweak away. Among them are the ability to
independently filter two entirely separate audio sources; or to stack two same-mode filters together
in series (to steepen the cutoff slope). Or perhaps you’d like to set up a filter sweep in which notch
or bandpass filters move in contrary motion? Or maybe you’re into formant simulation, which uses a
pair of bandpass filters (with their cutoffs set very close together), some parallel routing, and a bit of
tasteful modulation to make your Morgasmatron ‘talk.’ You’re limited only by your imagination, and
we welcome you to experiment and find your own favorite settings and techniques.
However, we would like to point out a few ways to use Morgasmatron that might not be as
immediately obvious…
Dual Sine Wave Oscillator 
This technique takes advantage of Morgasmatron’s self-oscillating filters and its 1V/OCT inputs to
turn your dual filter into a dual oscillator.
1. Patch the Pitch CV output of a keyboard or sequencer into Morgasmatron’s 1V/OCT input on
Filter A.
2. Patch the Morgasmatron’s OUT A jack into your audio monitoring system.
3. Turn off the OVERDRIVE switch for Filter A and set its Q-Drive to minimum (counterclockwise),
then increase Q to its maximum value (clockwise).
This causes Filter A to self-oscillate, and you should hear a sine wave coming from the OUT A
jack.
4. Adjust Filter A’s CUTOFF knob to tune the sine wave oscillator.
5. Experiment with increasing Q-DRIVE (which will mostly just increase gain, up to a point where
soft-clipping occurs). Switching on the OVERDRIVE circuit will have a more pronounced effect
on the waveshape and its harmonic content.
Since Morgasmatron features two filters, you can follow a similar procedure for Filter B (though it
doesn’t have an OVERDRIVE circuit) to create a second sine wave oscillator, which can track the
same V/Oct source as Filter A (useful if you want to detune the two oscillators slightly for a fatter
sound), or track an entirely different V/Oct source — allowing for true duophonic operation.
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Morgasmatron Manual 12