Doepfer A-171-4
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Doepfer
A-171-4
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The A-171-4 is a workhorse module for smoothing out harsh sounds or creating unique portamento effects. It’s a classic Doepfer design – simple, reliable, and gets the job done beautifully. Perfect for sound designers and experimental musicians looking for precise control over their modulation sources.
Product Description
- Doepfer A-171-4
- Eurorack Module
- Voltage-controlled 4-channel slew limiter
- Suitable for polyphonic portamento and other applications
- Adjustable slew time with LED display (range: 5ms - 10s)
- CV input with attenuator
- 4 Signal inputs and outputs
- Power consumption: 40mA (+12V) / 40mA (-12V)
- Width: 4 U
- Depth: 45 mm
PROS
- • Excellent slew rate control offers precise shaping of signals.
- • Four channels provide versatility for complex modulation tasks.
- • Doepfer's robust build quality ensures long-term reliability.
- • LED display provides clear, at-a-glance slew time monitoring.
CONS
- • Limited input/output flexibility compared to more modern modules.
- • 40mA power draw can be significant in densely populated racks.
- • Can be a bit opaque for beginners unfamiliar with slew limiting.
Product Video
Key Features
Type
Eurorack Module
Functions
Voltage-controlled 4-channel slew limiter, portamento, modulation shaping
HP Width
4
Depth
45 mm
Power Draw
80mA
Connections
4 Signal Inputs, 4 Signal Outputs, 1 CV Input with Attenuator
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Frequently Asked Questions
It allows you to scale down the incoming CV signal, preventing it from overwhelming the slew rate control and ensuring more subtle shaping.
Absolutely; the slow slew rates (up to 10 seconds) are ideal for creating drones and pads with gradual changes.
While other modules offer more features, the A-171-4’s simplicity and robust build make it a dependable choice for core modulation tasks.
