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74 ARTURIA – MOOG MODULAR V 2.6 – USER’S MANUAL
Unlike the low-pass 904A filter, the high-pass 904B filter does not possess resonance. The cut-
off frequency can be set with the rotating “frequency” dial or by the 3 modulation inputs which
function in the same manner as the inputs of the low-pass.
The following image represents the spectrum of a high-pass filter with a cut-off frequency of
500 Hz.
High-pass 24 dB/octave filter
7.1.3.3 Band-pass 24 dB/octave filter (904C)
Band-pass filter
Frequency Sets the filter cut-off frequency
Resonance Sets the bandwidth of the filter
Type Choice of filter type (band reject or band pass)
Audio Output Filter output connection jack
Audio Input Filter input connection jack
FM Inputs Frequency modulation input jacks
Mod. Width input Bandwidth modulation input connection jack
Keyboard follow Keyboard follows choice tuning the filter (no follow, follow 1, 2, 3 or 4).
Sequencer Choice Choice of the sequencer output tuning the filter (no sequencer,
sequencer 1, 2, 3 or 4).
The 24dB band pass filter resembles the Moog 904C filter, but the difference from it is that
while the Moog 904C is a pairing of the 2 associated low-pass and high-pass filters, this one is
independent of the 2 other filters. The central frequency can be set with the rotating
“Frequency” button, the bandwidth, of 1/3 octave to 3 octaves with the “Resonance” knob. The
Frequency
Resonance
Type
Audio Output
Audio Input
FM Inputs Mod. Width input