4 HP
30 mm deep
Current Draw
60 mA +12V
60 mA -12V
0 mA 5V
$221 Price in €

This Module is currently available.

dual all-pass filter

Introducing dåpf, the first dedicated effects processor in the Instruō
product line. The Instruō dåpf is a set of two analogue all-pass filters.

You might be asking yourself, “What is the point of a filter that passes
everything?” All-pass filters don’t actually attenuate frequency
amplitudes directly, but rather alter the phase relationship of frequencies
across the spectrum. All-pass filter stages appear in the vast majority of
voltage-controlled filter topologies as well as serving as a core building
block within DSP.

The normalled I/O of dåpf allows for cascaded or independent use of
the two all-pass filter circuits, offering everything from classic phaseshifting to psychoacoustic stereo enhancement and synthetic
Doppler effect.

• Two parallel all-pass filters
• Independent attenuverters for voltage control
• 1-Pole/2-Pole configuration for channel 1
• Cascaded normalisation
• Global 1 volt per octave tracking


Ø 4.86 (7 Votes) Average Rating
submitted Feb 20th, 13:56 by instruo | last Change Feb 24th, 23:12 by ParanormalPatroler

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