doepfer/a-150-1
A-150-1 Dual Voltage Controlled Switch
Dual voltage-controlled switch containing two independent bidirectional switches. Each switch routes a common Out/Input to one of two In/Outputs based on the control voltage level. Two LEDs indicate which output is active.525
Capabilities 2
- Signal Switchsignal-switch
- Bidirectional switches can route one input to two outputs or two inputs to one output; supports audio-frequency switching as well as CV routing.525
- Voltage-Controlled Switchvc-switch
- Two independent CV-threshold-switched bidirectional switches; CV above ~3.6V connects common O/I to I/O 2, below connects to I/O 1.525
Jacks 8
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (8) | |||
| Switch 1 Common | mixed | -12V to 12V | Common Out/Input for switch 1. Bidirectional — can serve as input (demux) or output (mux). A 1k protection resistor is inserted in this line.525 |
| Switch 1 Control | cv | — | Control voltage input for switch 1. CV below ~3.6V connects common O/I to I/O 1; CV above ~3.6V connects common O/I to I/O 2.525 |
| Switch 1 I/O A | mixed | -12V to 12V | In/Output 1 for switch 1. Connected to common O/I when CV is low (< ~3.6V). Bidirectional.525 |
| Switch 1 I/O B | mixed | -12V to 12V | In/Output 2 for switch 1. Connected to common O/I when CV is high (> ~3.6V). Bidirectional.525 |
| Switch 2 Common | mixed | -12V to 12V | Common Out/Input for switch 2. Bidirectional — can serve as input (demux) or output (mux). A 1k protection resistor is inserted in this line.525 |
| Switch 2 Control | cv | — | Control voltage input for switch 2. CV below ~3.6V connects common O/I to I/O 1; CV above ~3.6V connects common O/I to I/O 2.525 |
| Switch 2 I/O A | mixed | -12V to 12V | In/Output 1 for switch 2. Connected to common O/I when CV is low (< ~3.6V). Bidirectional.525 |
| Switch 2 I/O B | mixed | -12V to 12V | In/Output 2 for switch 2. Connected to common O/I when CV is high (> ~3.6V). Bidirectional.525 |
Parameters 0
No parameters recorded.
Firmware history 0 versions
No firmware history recorded.
References 2
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[525]
Doepfer A-150 / A-150-1 Dual Voltage Controlled Switch manual (English)manual● verified 2026-05-19
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[526]
Doepfer A-150-1 Dual Voltage Controlled Switch product pageproduct_page● verified 2026-05-19