Doepfer A-128
Professional music gear - detailed information and where to buy
Doepfer
A-128
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The A-128 is a brilliant, characterful filter bank for creating swirling, resonant soundscapes. It’s fantastic for experimental electronic music, ambient textures, or adding a unique edge to more traditional sounds—especially if you're tight on space but want a serious sonic tool.
Product Description
- Doepfer A-128
- Fixed Filter Bank
- 15 Parallel bandpass filters
- Amplitude controller per band filter
- Width 20 HP
- Depth: 60 mm
- Power requirements: +20 mA (+12 V) / -20 mA (-12 V)
PROS
- • Unique, resonant filter tones create complex, evolving textures.
- • Individual band amplitude control allows for precise filter shaping.
- • Compact 20HP footprint maximizes space in modular systems.
- • Robust Doepfer build quality ensures long-term reliability.
CONS
- • Limited filter modes restrict versatility for some users.
- • Fixed filter bank design offers less flexibility than variable filters.
- • Power draw, while manageable, adds up in larger systems.
Product Video
Key Features
Filter Type
Fixed Bandpass
Modes
15 Parallel Bandpass
HP Width
20
Depth
60 mm
Power Draw
+20 mA / -20 mA
CV Inputs
Amplitude control per band
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Frequently Asked Questions
It lets you isolate and emphasize individual frequencies within the filter bank, creating dynamic and evolving timbres that aren’t possible with a standard filter.
While capable, its strengths lie in textural sound design; it's less suited for clean, precise tones but can add grit and complexity to those sounds.
The A-128 offers a distinct, resonant character—more aggressive and textured than some of the smoother, more subtle filter banks available.
