doepfer/a-106-5
A-106-5 12dB SEM Filter
12dB multimode filter based on the Oberheim SEM circuit. Features a bandpass output and a combined low/notch/high pass mix output. Does not self-oscillate.324
Visualization filter_response
Capabilities 3
- Multimode Filtermultimode-filter
- 12dB/oct SEM-based filter with simultaneous bandpass output and continuously blendable LP/Notch/HP mix output. No self-oscillation.324
- Self-Oscillationself-oscillation
- Oberheim SEM-style 12 dB/oct multimode; self-oscillates at maximum Q.324
- Vcfvcf
- Voltage-controlled SEM-style 12 dB/oct multimode filter.324
Jacks 5 (3 in / 2 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (3) | |||
| Audio In | audio | — | 324 |
| CV1 In | cv | — | CV input for frequency modulation without attenuator324 |
| CV2 In | cv | — | CV input for frequency modulation with polarizer (bipolar attenuator)324 |
| Outputs (2) | |||
| Bandpass Out | audio | — | Dedicated bandpass filter output324 |
| Low/Highpass Mix-Out | audio | — | Combined low/notch/high pass mix output; continuously variable between lowpass and highpass via the LP/HP Mix knob, with notch at center position324 |
Parameters 5
| Name | Type | Range | Behavior |
|---|---|---|---|
| Audio Attenuator | knob | — | Attenuates the audio input level. Distortion begins at approximately the center (50%) position with A-100 standard signals.324 |
| CV2 Polarizer | knob | — | Bipolar attenuator (polarizer) for the CV2 input. Unlike A-124 which has a normal attenuator, A-106-5 uses a polarizer allowing negative CV amounts.324 |
| Frequency | knob | — | 324 |
| LP/HP Mix | knob | — | Continuously blends the Mix output between lowpass (fully CCW), notch (center), and highpass (fully CW).324 |
| Resonance | knob | — | Controls filter resonance. The filter does not self-oscillate.324 |
Firmware history 0 versions
No firmware history recorded.
References 1
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Doepfer A-106-5 12dB SEM Filter product pageproduct_page● verified 2026-05-14