Doepfer A-133-2
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Doepfer
A-133-2
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The A-133-2 is a compact powerhouse for adding movement and texture to your modular system. It's a great choice for experienced modular users who want to explore complex modulation routing and ring modulation effects—not so much for beginners just starting out.
Product Description
- Doepfer A-133-2
- Eurorack Module
- Dual VC Polariser
- channel polariser
- Inverter
- Ring modulator
- Per channel: manual control (gain range -1 to +1)
- CV attenuator
- CV input
- CV modulation input
- signal input and output
- Power requirement: 20 mA (+12 V) / 20 mA (-12 V)
- Width: 4 HP
- Depth: 40mm
PROS
- • Excellent dual polariser for complex modulation shaping
- • Robust Doepfer build quality; feels solid and reliable
- • Compact 4HP footprint maximizes panel real estate
- • Versatile ring modulation adds unique textural possibilities
CONS
- • Limited gain range (-1 to +1) restricts dynamic shaping
- • Can be noisy, especially with extreme CV modulation
- • Polarisation can be confusing for beginners; steep learning curve
Product Video
Key Features
Type
Eurorack Module
Functions
Dual VC Polariser, VCA, Inverter, Ring Modulator
HP Width
4
Depth
40mm
Power Draw
40mA (+12V / -12V)
Connections
2 Signal Inputs/Outputs, 2 CV Inputs, 2 CV Modulation Inputs, Manual Gain Controls
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Frequently Asked Questions
It’s more basic; it attenuates and inverts but lacks the finer control and offset adjustments of a dedicated attenuverter.
Yes, the ring modulation is quite sensitive, so even small signals create audible and interesting artifacts.
While it functions as a VCA, its primary strength is modulation and polarisation; it’s not the ideal choice for straightforward amplitude control.
