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Introducing dåpf, the first dedicated effects processor in the Instruo product line. The Instruo 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 phase-shifting to psychoacoustic stereo enhancement and synthetic Doppler effect.
Features
- Two parallel all-pass filters
- Independent attenuverters for voltage control
- 1-Pole/2-Pole configuration for left channel
- Cascaded normalisation
- Global 1 volt per octave tracking
Specifications
- Width: 4hp
- Depth: 30mm
- Power: +12v 60mA / -12v 60mA