Introducing dåpf, the first dedicated effects processor in the Instruōproduct 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 passeseverything?” All-pass filters don’t actually attenuate frequencyamplitudes directly, but rather alter the phase relationship of frequenciesacross the spectrum. All-pass filter stages appear in the vast majority ofvoltage-controlled filter topologies as well as serving as a core buildingblock within DSP. The normalled I/O of dåpf allows for cascaded or independent use ofthe two all-pass filter circuits, offering everything from classic phaseshifting to psychoacoustic stereo enhancement and syntheticDoppler 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 Dimensions 4 HP 60 mm deep Current Draw 60 mA +12V 60 mA -12V 0 mA 5V