User Manual

Crossfader (Bipolar CV)
To use AMPS as a crossfader with a bipolar CV input
that crossfades between two incoming waveforms.
1. Set the CV A POLARITY [G] switch to — , and the
CV A attenuator [C] to the noon position.
2. Set the CV B POLARITY [H] switch to + , and the
CV B attenuator [D] to the noon position.
3. Set the VCA B PHASE INVERT [K] switch to the
DOWN (in-phase) position.
4. Set the VCA A LEVEL [A] and VCA B
LEVEL [B] to the same height, halfway up the
sliders.
5. Patch external waveform 1 into IN A [3] .
6. Patch external waveform 2 into IN B [4] .
7. Patch OUT B [6] into an external VCA or mixer.
8. Patch a bipolar control voltage into CV A IN [1] ,
and vary it.
Sweeping the control voltage from negative to
positive will crossfade external waveform 1 with
external waveform 2.
That is, positive voltages increase the amount of
external waveform 2 present at OUT B [6] while
simultaneously decreasing the amount of external
waveform 1. Similarly, negative control voltages
decrease the amount of external waveform 2
present at OUT B [6] while simultaneously
increasing the amount of external waveform 1.
CV polarity is indicated by the CV A LED [I] and
CV B LED [J] .
9. Adjust the CV A [C] and CV B [D] attenuators as needed to balance the volume of the two
incoming waveforms.
Amps Manual 13