OUTPUT KNOBS
I - VII - These knobs control the level of harmonics present at the main output jack (they
have no effect on the individual outputs (jacks II-VII)
DIST - Amount of distortion applied to the main output (doesn
ʼ
t affect individual
outputs II-VII)
FREQUENCY MULTIPLICATION
With a triangle wave input, you get 1X, 2X, 3X, 4X, 5X, 6X and 7X the
frequency (with triangle waves as the output) Because of the way it works, there will likely be
some of the original frequency in each output. Some channels aren
ʼ
t completely symmetrical
triangle waves, but this allows for many of the other features.
Each channel has its own character and responds differently depending on the amplitude and
shape of the input, and although each channel is a multiple of the original frequency,
they all have a slightly different shape and will likely contain some of the original
frequency depending on the input amplitude. Some channels have a bit more “buzz”
than others because the symmetry of each wave is slightly different.
Other waveforms and sounds besides triangles can be used with different sounds
resulting.
—
Input a triangle wave VCO to the channel one input (IN I)
—
Turn the IN I pot clockwise to correspond to the input amplitude. For most eurorack
oscillators at 10V peak to peak (+/-5V), turn the IN I knob to 2 o
ʼ
clock. For pro audio
line level signals (+/-2V), turn the IN I knob to 4 o
ʼ
clock. For regular line level signals
turn the IN I knob all the way clockwise. Some signals may need to be amplified to work
fully and adjustments to the input knob may be needed to get the desired result.
—
Turn the knobs I-VII to mix different harmonics to the main output, or use the
individual outputs at the bottom.
WAVEFOLDER
The Harmonic Multiplier can be used as a wave folder as well.
—
Connect a VCO to IN I (triangle and sine waves work best). Turn the IN I knob
clockwise. Turn the VII knob clockwise.
—
The fold amount can be modulated by turning the IN I knob or using a VCA before
the input (e.g. VCO output to VCA input, VCA output to harmonic multiplier input).
—
The horizontal symmetry can be adjusted by applying a control voltage to the CV
input of the harmonic multiplier.
