bastl-instruments/dark-matter
Dark Matter
A voltage-controlled audio feedback module with input VCA, soft clipping, 2-band EQ with boost/overdrive, envelope follower, voltage-controlled feedback loop, and a crossfader between input and feedback signal paths.1153
Capabilities 5
- 2-Band EQeq
- 2-band EQ with separate BASS and TREBLE faders for cutting and BASS/TREBLE BOOST knobs for voltage-controlled overdrive saturation; designed for overdriven feedback signals.1153
- Envelope Followerenvelope-follower
- Tracks the INPUT signal amplitude and pitch; outputs 0–5V CV envelope normalized to FBK CV and X-FADE CV inputs for ducking, gating, and modulation.1153
- Feedback Loopfeedback-loop
- FBK VCA routes TONE output back into TONE input to form a feedback loop; the loop can be extended externally via FBK OUT and FBK IN jacks with polarity and routing controls.1153
- Input Saturationinput-saturation
- DRIVE section applies 3x gain with soft clipping; the BASS and TREBLE BOOST knobs add further saturation and overdrive to the EQ bands.1153
- Soft Clippingsoft-clipping
- 1153
Jacks 10 (7 in / 3 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (7) | |||
| Bass BC Input | cv | -8V to 8V | Unattenuated CV input for modulating the BASS BOOST level.1153 |
| Drive CV Input | cv | -5V to 5V | CV input for modulating the DRIVE VCA level; attenuated by the DRIVE CV pot.1153 |
| Feedback CV Input | cv | -5V to 5V | CV input for modulating the feedback loop VCA level; normalized to the DYNAMICS envelope output when unpatched.1153 |
| Feedback In | audio | — | Input for re-patching an external feedback loop back into the TONE section; normalled to FBK OUT internally, breaking the loop when patched.1153 |
| Signal Input | audio | -5V to 5V | Main audio input to the DRIVE VCA; applies 3x gain with soft clipping.1153 |
| Treble BC Input | cv | -8V to 8V | Unattenuated CV input for modulating the TREBLE BOOST level.1153 |
| X-Fade CV Input | cv | -5V to 5V | CV input for modulating the crossfader mix position; normalized to the DYNAMICS envelope output when unpatched.1153 |
| Outputs (3) | |||
| Envelope Out | cv | 0V to 5V | Outputs the envelope follower signal derived from the input; normalized internally to the X-FADE and FBK CV inputs.1153 |
| Feedback Out | audio | — | Output from the TONE/FBK stage for routing through external modules; polarity can be inverted via the OUT POLARITY switch.1153 |
| X-Fade Output | audio | — | Buffered main output from the crossfader mixing input and feedback signals.1153 |
Parameters 15
| Name | Type | Range | Behavior |
|---|---|---|---|
| Bass Boost Pot | knob | — | Amplifies and saturates the bass band signal with overdrive.1153 |
| Bass Fader | fader | — | Sets the level of the bass band in the 2-band EQ; cuts into the sound.1153 |
| CV Control Switch | switch | — | Selects whether the FBK fader and CV control attenuates the signal at FBK IN or FBK OUT; the unselected channel passes at full amplitude.1153 |
| Decay Switch | switch | — | Selects the decay length of the envelope follower between short (snappy) and long (sluggish) settings.1153 |
| Drive CV Pot | knob | — | Attenuates the CV signal from the DRIVE CV input jack.1153 |
| Drive Fader | fader | — | Sets the volume and overdrive level of the DRIVE VCA preamp stage.1153 |
| Drive/Dry Switch | switch | — | Selects whether the X-FADE input side uses the direct (clean) signal or the post-DRIVE processed signal.1153 |
| Feedback CV Pot | knob | — | Attenuverter for the FBK CV input; fully attenuated at noon, left of noon inverts the modulation, right of noon applies non-inverted modulation.1153 |
| Feedback Fader | fader | — | Sets the amplitude of the feedback loop VCA, ranging from tone shaping effects to resonant oscillation and frequency tuning.1153 |
| Follow Jumper | jumper | — | Selects between a low-pass or all-pass filter at the input of the envelope follower, affecting its frequency sensitivity.1153 |
| Out Polarity Switch | switch | — | Inverts the polarity of the FBK OUT signal to correct phase inversions introduced by external modules in the feedback loop; should remain in the '+' position when no inversion is present.1153 |
| Treble Boost Pot | knob | — | Amplifies and overdrives the treble band signal.1153 |
| Treble Fader | fader | — | Sets the level of the treble band in the 2-band EQ; cuts into the sound.1153 |
| X-Fade CV Pot | knob | — | Attenuverter for the X-FADE CV input; fully attenuated at noon, left of noon inverts the modulation, right of noon applies non-inverted modulation.1153 |
| X-Fade Fader | fader | — | Crossfades between the clean input signal and the fed-back TONE signal.1153 |
Firmware history 0 versions
No firmware history recorded.
References 2
- [1153]
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[1154]
Bastl Instruments Dark Matter product pageproduct_page● verified 2026-06-08