Module A-125 (VC Phaser) is a voltage controlled
phase shifter.
Phase shifting can be controlled either manually or by voltage control.
Other parameters which can be controlled are resonance (governing the
depth of the comb filtering, and tonal color) and mix (the amount of the
original signal which is added to the phase-shifted signal). The A-125
is used to generate the typical phaser sound ("jet sound").
Due to the voltage control feature not only the usual LFO-controlled phasings
but even ADSR-, random-, sequencer- or S&H-controlled phasings are
possible. In combination with the Shepard generator A-192
and several A-125 never ending barberpole phasing effects come true.
For more detailed information please look
at the English user's guide alternatively as html
file (for browser view) or as pdf
file (for printout).
Below you will find the frequency
response of the A-125 for different phase shift settings.
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