Pip Filter:Compact Low Pass Filter and VCA The ‘Pip Filter’ is a compact 4HP voltage controlled 2 pole low-pass filter with resonance, a ‘pingable’ trigger input and built in VCA. Filter cutoff is controlled via both knob control and dual CV inputs with a built in attenuverter. Resonance is manually controlled and will reach into self oscillation with rough V/Oct tracking. A trigger input allows the filter to be pinged for percussive plucked type sounds. Finally, a built in VCA (normalled open) allows for additional independent amplitude control of the filtered signal. Features Compact filter and VCA in 4HP. Dual pole 12dB/Oct Low pass filter with resonance. Two frequency CV inputs, one with attenuversion and other with rough V/Oct tracking. Manual resonance control going into self oscillation. Trigger input for ‘pinging’ filter. Normalled VCA input for optional amplitude control. Skiff friendly with reverse power protection. 2 Year Warranty. Made in England. Technical Specifications Size: 4HP Power: +12V 25mA / -12V 25mA Depth: 32mm (approx)