Strymon
Strymon AA.1 Amplifier & Attenuator Eurorack Module
Best interface for integrating guitar pedals with modular synthesizer setups.
The Strymon AA.1 is a compact 4HP Eurorack module engineered to seamlessly bridge the gap between guitar pedals and modular synthesizers. It expertly manages signal level mismatches, amplifying guitar-level inputs by +18dB for Eurorack compatibility and attenuating hot Eurorack outputs by -18dB for guitar gear or audio interfaces. This module ensures your instrument and modular signals are perfectly matched for optimal performance. It features dedicated stereo inputs and outputs, offering versatile patching options for integrating effects sends, returns, and stereo master outputs into your setup.
$129.00
Owner Satisfaction
4.7
/ 5
Category Rank
26
/ 204
#26 in Effects Processors
Price vs Category Average
-71%
Below average
Format
4
/ HP Eurorack module
Who it's for
- Musicians connecting external gear to modular synth systems
- Audiophiles demanding clean signal conversion for studio recordings
- Rack space-conscious performers needing versatile gain staging tools
Who should skip it
- Budget-focused hobbyists seeking affordable utility interface solutions
- Experimental sound designers requiring voltage-controlled modulation capabilities
- Producers working with stereo signals or multiple mono sources
Performance breakdown
Signal Integrity
Maintains pristine audio fidelity when bridging pedal and modular voltage levels.
Gain Staging Precision
The +18dB and -18dB ranges handle signal mismatches with surgical accuracy.
Stereo Versatility
Dual-channel design makes integrating stereo effects chains into modular patches effortless.
Rack Efficiency
Compact 4HP footprint saves precious space in crowded Eurorack cases.
Build Quality
Strymon’s signature robust construction ensures long-term reliability in any studio.
Ease of Integration
Simplifies complex routing between external guitar gear and modular synthesizers.
Key Specs
Format
4 HP Eurorack module
Rack Depth
1.5” (38mm)
Amplifier Gain
+18dB
Attenuator Gain
-18dB
Max Input Level (Amplifier)
2.25Vpp (before soft clipping)
Max Output Level (Amplifier)
18Vpp
Power Consumption
+12V rail (10mA max), -12V rail (10mA max)
Features
- Acts as a bridge between guitar pedals and Eurorack systems
- Supports stereo signal processing via dedicated inputs/outputs
- Allows use of guitar/bass as a signal source for modular processing
- Provides a stereo master output from modular to audio interfaces
What customers say
The Strymon AA.1 earns high marks for its exceptional audio quality and essential utility, acting as a pristine bridge between Eurorack and external gear. Consumers consistently highlight its reliability and transparent sound, noting that the module handles line and instrument levels flawlessly. While positioned at a premium price, users feel the robust build and critical functionality fully justify the investment, making it a trusted workhorse in complex setups.
Know before you buy
Eurorack systems operate at much higher signal levels than standard guitar pedals. The AA.1 bridges this gap by amplifying your pedal signals to modular levels and attenuating your modular signals back down to instrument levels, preventing distortion and protecting your gear.
Yes, the module features dedicated stereo inputs and outputs. This makes it an ideal solution for integrating stereo effects pedals or routing your modular master output into an audio interface.
The AA.1 has a rack depth of 1.5 inches (38mm), making it compatible with most standard Eurorack cases, including many shallow skiff designs.
The AA.1 is designed to be a transparent utility module. It provides clean gain and attenuation to ensure your signal levels are matched without significantly altering the character of your sound.
Absolutely. By plugging your guitar into the AA.1, it boosts the signal to the appropriate level for your modular oscillators and effects, allowing you to use your Eurorack system as a sophisticated effects processor for your instrument.
The AA.1 is very power-efficient, drawing only 10mA from both the +12V and -12V rails. It is unlikely to put a significant strain on your existing power supply.
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