Morphor
Morphor VCF
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Morphor VCF – Multimode — an analogue multimode filter in an 8HP Eurorack format, built around two independent cores: a lowpass and a highpass. Each section has its own cutoff knob sweeping the full audible range, a bipolar CV input, and a separate resonance control, while a slope switch sets the rolloff at 6, 12 or 24 dB per octave independently for each filter. The BP/HP Mix control blends the bandpass output with the highpass, giving a smooth transition between bandpass character and clean highpass. Pushing resonance high enough drives both filters into self-oscillation, turning the module into an extra sine-tone source.
Two independent filter cores instead of one compromise
A typical multimode filter switches a single core between LP, HP and BP modes, so only one character is available at a time. VCF Multimode runs two separate cores - LP and HP - simultaneously, each with its own cutoff, resonance, and slope selection. That makes it possible to run a resonant lowpass sweep on one signal while shaping the top end of the same or a different source with the second section, with no mode-switching mid-performance.
Self-oscillation as a free oscillator, plus smooth BP/HP mixing
Driving both sections' resonance to maximum pushes the filter into self-oscillation, yielding clean sine tones without adding an oscillator to the patch - useful for bell-like, metallic tones or an extra modulation voice. The BP/HP Mix control lets you glide smoothly between a strong bandpass character and clean highpass, so a single knob replaces a dedicated bandpass filter module when designing narrower, resonant tones.
KEY FEATURES
- 100% analogue signal path
- Independent filter cores: lowpass and highpass
- Slope selection per section: 6, 12 or 24 dB/octave
- Separate resonance control per section, with self-oscillation
- CV input for LP cutoff and for HP/BP cutoff
- BP/HP Mix control
- Mono input, LP output, and BP/HP output
TECHNICAL SPECIFICATIONS
- Width: 8 HP
- Height: 3U
- Module depth: 40 mm
- Mass: 111 g
- Power socket: 16-pin
- Current draw: +12V 35 mA, -12V 50 mA, +5V 0 mA
