Worng Electronics Parallax
Stereo VCF with independent L/R frequency and resonance skew
16 HP Eurorack module
Parallax is a stereo voltage-controlled filter with roots in the Sequential Circuits Pro One and Prophet 5 rev 3 topology, extended with independent skew controls that let you offset cutoff frequency and resonance between the left and right channels. It offers both -12dB/oct and -24dB/oct outputs simultaneously, making it a powerful tool for creating wide, animated stereo filter effects from mono or stereo sources. Its playable design with multiple FM inputs, attenuvertors, and CV-controllable skew parameters gives it a rough yet creamy character suited to everything from subtle stereo width to chaotic self-patching mayhem.
Features
- Stereo VCF based on Sequential Circuits Pro One and Prophet 5 rev 3 topology
- Independent -12dB/oct and -24dB/oct outputs for both left and right channels
- Stereo Frequency (Freq) control sweeps both channel cutoffs simultaneously
- Stereo Resonance (Res) control from flat through self-oscillation to amplitude control of oscillation
- F. Skew control offsets cutoff frequency between left and right channels around the Freq base point
- R. Skew control offsets resonance between left and right channels around the Res base point
- FM1 unipolar CV input with attenuator for stereo frequency modulation
- FM2 CV input with attenuvertor for stereo frequency modulation (off at 12 o'clock, positive CW, negative CCW)
- F. Skew CV input with attenuvertor for voltage control of frequency skew
- Res CV input with dedicated CV amount knob
- R. Skew CV input with attenuvertor for voltage control of resonance skew
- Left input normalled to Right input enabling mono-to-stereo patching
Controls & Jacks (22)
- Freq
- Res
- F. Skew
- R. Skew
- FM1
- FM2
- Skew
- Res CV
- R. Skew CV
- FM1 CV Input
- FM2 CV Input
- F. Skew CV Input
- Res CV Input
- R. Skew CV Input
- In L
- In R
- -12dB L Output
- -24dB L Output
- -12dB R Output
- -24dB R Output
- Frequency LED
- Resonance LED
How-To Guides
- Basic Stereo Filter Sweep
- Mono Source to Stereo Filter
- Stereo Audio Rate FM
- Pinging the Filter
- Stereo Envelope Filter
- Self-Patching Filter Chaos
- Stereo Self-Oscillation Drone
- Dual Slope Parallel Processing
- LFO Stereo Autopan Filter
- Keyboard Tracking Filter
Explore the interactive Parallax panel on BleepDex — tap any control to learn what it does.
