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 Lowpass 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)