Doepfer A-138o
Professional music gear - detailed information and where to buy
Doepfer
A-138o
Product Info
Article Number:
399260
Brand:
Doepfer
Model:
A-138o
Category:
Mixer, Attenuator Modules
Price:
$68.20
* Prices may vary. Check retailer for current pricing and availability.
The A-138o is a no-frills, reliable mixer perfect for smaller Doepfer or Eurorack systems. It’s a solid choice for creating stereo mixes and routing signals with a simple, clean design, especially great for those wanting to consolidate multiple oscillators or effects into a cohesive sound.
Product Description
- Doepfer A-138o
- Performance Mixer Output Module
- Sums up all connected input modules (article nr #399259# - not included) to a stereo sum
- AUX send and AUX return
- Width: 4 HP
- Depth: 40 mm
- Power requirements: +20 mA (+12 V) / -20 mA (-12 V)
PROS
- • Excellent stereo summing with minimal noise floor
- • Aux send/return loop offers flexible signal routing
- • Compact 4HP footprint maximizes modular space
- • Solid Doepfer build quality; reliable for years
CONS
- • Limited channel count; not suitable for large modular setups
- • Power draw is a bit higher than some alternatives
- • AUX return lacks gain control, requiring external adjustment
Product Video
Key Features
Channels
2 Stereo Channels + AUX Send/Return
Type
Mixer/Attenuator Module
HP Width
4 HP
Depth
40 mm
Power Draw
+20 mA / -20 mA
Connections
6 x 1/8in (3.5mm) TS
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Frequently Asked Questions
It's more basic; it's a simple loop, great for subtle processing but lacks the gain control of a dedicated loop.
Yes, as long as they use the standard 3.5mm patch cables, it's universally compatible with most Eurorack modules.
Doepfer's design keeps the noise floor impressively low, but very noisy modules will still introduce noise into the mix.
