Dr Scientist – Dusk Analog Filter

Dusk is a digitally controlled analog filter. At its heart is an analog 12dB/Octave low pass filter based around an old-school integrated circuit called an Operational Transconductance Amplifier or OTA. The OTA runs off of split +/-9V rails for great audio quality and a deep filter sound. The digital side brings a whole bunch of convenient and powerful features like controlling the filter setting, tap tempo, MIDI, 6 LFOs, and a platform for all the best filter modes in one small pedal.Features3 Filter Modes, 6 LFO Waveforms in a small form factorHigh quality analog signal pathPremium parts and components throughoutTrue Bypass with soft touch relay switchingMIDI implementation of all digital controlsExpression pedal/CV control over Filter CutoffTop mounted audio and power jacksDesigned and handmade in B.C., CanadaKnobsFILTER Mode dependent. Controls Filter Cutoff or Filter Range.RESONANCE Analog feedback control adds resonance to filter.VOLUME Analog volume control.MODE Select 1 of 3 operating modes (Cutoff, Envelope, LFO).WAVEFORM Select 1 of 6 waveforms for LFO Mode.MULTI Mode dependent. Automated Filter Sweep, Envelope Freeze, LFO Speed Ramping.BYPASS Engage or disengage the effectOperationInput/Output Impedance: 500k/1k150mA @ 9VDC, 2.1mm centre negative plugTrue Bypass with soft touch relay switchingAdditional SpecsMono input, Mono output, TRS Expression input/TS Control Voltage inputFilter Control: +/-24dB analog, resonant low pass filterExp Input: TRS cable, any resistanceAll analog signal pathDimensions: 70mm wide, 129mm long, 59mm tall (2.75 wide, 5.1 long, 2.3 tall)