beatrix is a phaser, offering voltage control over notch frequencies, effect depth and feedback (resonance). it also offers an unusual 'offset' control allowing you to sweep the filter notches without sweeping the resonant
frequency.
further options are provided by the 'phase' switch (which disables the phasing sound and essentially turns the module into a resonant peak filter) and 'sum' switch (which inverts the filtered signal, giving a different flavour of
phasing).
beatrix will self-oscillate at high feedback if desired, though the front panel control is factory-trimmed to stop just short of self-oscillation.
the module is 100% analogue, using discrete transistor otas.
specifications:
panel width: 8hp
module depth: 37mm
current draw: 22ma on the +12v rail, 21ma on the -12v rail
inputs:
frequency (approximately 1v/octave, with attenuator)
offset
depth
feedback
audio input (with attenuator)
