AudioFu Chart · October 2026
Best Interface Modules Under $200 2026
The top pick is Doepfer A-119 Ext.In External Input / Envelope Follower ($84). Intellijel Designs Pedal I/O JACKS 1U gives you the most for the money at $27. Expert Sleepers Little Mikey Preamp Eurorack Synth Module leads the high end. Ranked by the AudioFu Index from 34 models across 13 brands, prices checked every night.
Last updated: October 15, 2026
Top 10
Full detail for the 10 highest AudioFu Index scores. Every other model is listed below.
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Doepfer A-119 Ext.In External Input / Envelope Follower
A-119 · Doepfer
14 for sale on Reverb2 finishes at Thomann
The A-119 is a workhorse module for integrating external sounds into your modular system. It’s fantastic for triggering events based on external audio, or shaping those sounds with its envelope follower. Ideal for experimental musicians and sound designers who want a flexible and affordable interface.
Pros
- Excellent pre-amp gain range for both line and mic signals
- Envelope follower accurately tracks complex audio dynamics
- Balanced input handles low-level signals with impressive clarity
Cons
- Limited routing options compared to more advanced envelope processors
- Gain staging can be tricky, requiring careful adjustment
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The Befaco InAmp is a really handy little module for bringing in external sounds – think guitars, drum machines, or other synths – into your Eurorack system. It's perfect for those wanting a clean, simple way to interface external gear, especially if you're on a budget and need to save space. The normalization is a nice touch for straightforward routing.
Pros
- Solid build quality with robust metal chassis and tight tolerances
- Flexible dual input design excels with varied signal sources
- Normalization offers a clean, simple signal chain option
Cons
- 3.5mm jacks feel a bit flimsy compared to higher-end options
- Gain range could be wider for extremely quiet or hot signals
72AudioFu
IndexStableno change since Aug 14Aug 14$144 now$144€129 at Thomann · in stockCheck price ↗ -
Doepfer A-190-3 USB / MIDI CV / Gate Interface
A-190-3 · Doepfer
4 for sale on Reverb2 finishes at Thomann
The A-190-3 is a solid, no-frills MIDI-CV interface for Doepfer and Eurorack systems. It's perfect for those wanting straightforward integration without complex routing or advanced modulation capabilities – a great entry point into modular MIDI control. It's a workhorse for getting your modular synths playing along with your computer or other MIDI gear.
Pros
- Robust Doepfer build quality ensures long-term reliability.
- Provides essential MIDI-to-CV conversion for modular integration.
- Four CV outputs offer flexibility for multiple modules.
Cons
- Limited resolution compared to more modern MIDI-CV interfaces.
- No velocity or aftertouch support – purely note and gate.
67AudioFu
IndexStableno change since Aug 14Aug 14$140 now$140€125 at Thomann · in stockCheck price ↗ -
The XOH is a remarkably clean and compact stereo output solution for your modular system. It's ideal for anyone needing a reliable way to send your complex synth creations to external speakers or headphones without introducing noise or distortion—especially great for live performance or studio recording where signal integrity is key.
Pros
- Excellent stereo imaging, noticeably wider than typical Eurorack outputs
- Headphone output provides a surprisingly clean and powerful signal
- Compact 6HP footprint maximizes space in tight modular systems
Cons
- Limited routing options beyond simple level adjustments
- 3.5mm jacks can feel a bit fragile with repeated use
65AudioFu
IndexStableno change since Aug 14Aug 14$144 now$144€129 at Thomann · in stockCheck price ↗ -
Expert Sleepers Little Mikey Preamp Eurorack Synth Module
Little Mikey · Expert Sleepers
6 for sale on Reverb1 finish at Thomann
The Little Mikey is a seriously useful little module for anyone needing a clean, flexible preamp in their Eurorack. It's a great way to bring in external signals – vocals, guitars, even vintage synths – without muddying your sound, and the gain range is surprisingly generous. Perfect for modular experimenters and those wanting a dedicated, compact preamp.
Pros
- Excellent gain staging flexibility with the -20dB pad
- Clean, transparent preamplification with minimal coloration
- Hi-Z input handles guitars and other instruments exceptionally well
Cons
- 3.5mm output jacks feel a bit fragile for frequent use
- Limited input options compared to more expansive preamps
62AudioFu
IndexStableno change since Aug 14Aug 14$189 now$189€169 at Thomann · in stockCheck price ↗ -
Expert Sleepers ES-6 MK3 CV / Lightpipe Interface Eurorack Synth…
ES-6 mk3 · Expert Sleepers
3 for sale on Reverb1 finish at Thomann
The ES-6 mk3 is a workhorse for getting your analog control voltages into a digital audio workstation. It's a brilliant, compact solution for anyone wanting to integrate modular synths with computer-based sequencing and effects, especially useful for live performance or detailed studio work.
Pros
- DC-coupled CV inputs allow for true control voltage ranges
- Excellent 103dB SNR ensures clean, noise-free ADAT conversion
- Compact 4HP footprint maximizes space in dense modular racks
Cons
- Limited to six CV channels; may not suit larger, complex setups
- ADAT output is digital only; no analog output options available
57AudioFu
Index↓ 5.9%since Aug 14 · lowest so far$189 · Aug 14$178 now$178€159 at Thomann · in stockCheck price ↗ -
The A-190-8 is a no-frills, dependable way to sync your Doepfer modules to external MIDI or USB clock sources. It's ideal for those who want straightforward clocking without a lot of extra complexity—perfect for a minimalist Eurorack environment or a first modular system.
Pros
- Reliable Doepfer build quality ensures long-term stability.
- Simple, direct MIDI clock synchronization for modular setups.
- Compact 6HP footprint conserves valuable rack space.
Cons
- Limited functionality beyond basic clock/start/stop signals.
- Requires a power supply capable of providing both +12V and -12V.
55AudioFu
IndexStableno change since Aug 14Aug 14$140 now$140€125 at Thomann · in stockCheck price ↗ -
The Befaco 1U Out is a really clever solution for Eurorack users who need a simple audio interface. It's perfect for those who want to record external signals, monitor with headphones, or just route audio without cluttering up their rack with a full-blown mixer. It’s a no-frills, compact, and reliable option.
Pros
- Compact 1U form factor maximizes precious modular space.
- Stereo input allows for easy integration of external audio sources.
- Dedicated headphone output with volume control enables private monitoring.
Cons
- 3.5mm jacks feel slightly less premium than standard 6.35mm connectors.
- Power consumption, while reasonable, can impact smaller power supplies.
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The Cu1A is a surprisingly capable little module for anyone dipping their toes into Eurorack recording or needing a simple, portable interface. It's ideal for experimentalists, budget-conscious builders, or those who just need to capture audio from their modular setup without breaking the bank. Don't expect audiophile-grade performance, but it gets the job done remarkably well.
Pros
- Excellent value for a USB audio interface in Eurorack format.
- USB-C class compliance simplifies setup across various operating systems.
- Headphone output provides convenient monitoring with adjustable volume.
Cons
- 3.5mm jacks feel somewhat flimsy and may be prone to wear with heavy use.
- Limited input/output options restrict more complex routing scenarios.
53AudioFu
Index↓ 44.7%since Aug 14 · lowest so far$95 · Aug 14$53 now$53€47 at Thomann · in stockCheck price ↗ -
This little box is a lifesaver for anyone running pedals into their modular system with an Intellijel I/O. It’s the missing link that lets you easily route signals, and at 8HP, it's incredibly efficient. If you're trying to squeeze every last patch point out of your rack, this is a must-have accessory.
Pros
- Extremely compact 1U form factor maximizes patch bay density
- Provides essential pedal interfacing without significant HP consumption
- Robust Intellijel build quality ensures long-term reliability
Cons
- Requires the Intellijel I/O 1U base module, adding to overall cost
- Limited to basic TS jack connectivity; lacks advanced features
All 34 interface modules
Same index, same nightly prices — compact. Colour options of one model share a row. Tap a photo to zoom.
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Intellijel Designs Line Out 1UIntellijel Designs50Stable$44€39$44€39Check ↗
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Intellijel Designs Stereo Line In 1UIntellijel Designs50Stable$83€74$83€74Check ↗
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Intellijel Designs Headphones 1UIntellijel Designs50Stable$87€78$87€78Check ↗
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Intellijel Designs Stereo Out 1UIntellijel Designs50Stable$87€78$87€78Check ↗
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Intellijel Designs Pedal I/O 1U V2Intellijel Designs50Stable$115€103$115€103Check ↗
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Intellijel Designs OutsIntellijel Designs50Stable$188€168$188€168Check ↗
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Doepfer A-139-2 Headphone AmplifierDoepfer49Stable$66€59$66€59Check ↗
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Doepfer A-190-7 1UDoepfer49Stable$72€64$72€64Check ↗
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Doepfer A-119-2Doepfer49Stable$73€65$73€65Check ↗
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Doepfer A-192-2Doepfer49Stable$144€129$144€129Check ↗
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Befaco 1U STAmpBefaco48Stable$88€79$88€79Check ↗
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Befaco Output V3Befaco48Stable$161€144$161€144Check ↗
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Behringer CM1A MIDI to CV Eurorack ModuleCM1A · Behringer47↓ 2.5%$44€39$44€39Check ↗
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ADDAC 309 CV to ExpressionADDAC46Stable$84€75$84€75Check ↗
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4ms Percussion Interface + Exp.4ms46↓ 3.6%$178€159$178€159Check ↗
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NANO Modules ST-INNANO Modules43Stable$151€135$151€135Check ↗
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NANO Modules ST-OUTNANO Modules43Stable$151€135$151€135Check ↗
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Behringer Perfect Pitch PP1 Eurorack ModulePerfect Pitch PP1 · Behringer42↓ 3.9%$83€74$83€74Check ↗
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vpme.de trig31vpme.de42↓ 2.9%$151€135$151€135Check ↗
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Strymon AA1 Level ShifterStrymon42↓ 2.1%$154€138$154€138Check ↗
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Erica Synths Pico OutputErica Synths41Stable$106€95$106€95Check ↗
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ADDAC 200PI Pedal IntegratorADDAC41↑ 9.5%$129€115$129€115Check ↗
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4ms Listen IO4ms40↑ 7.8%$156€139$156€139Check ↗
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Rides In The Storm CONRides In The Storm36↑ 10.2%$73€65$73€65Check ↗
Interface Modules by the numbers
Measured across all 36 models we track, not a sample.
Median $115 — half of all interface modules here cost less.
How to choose the best interface modules
Noise Floor
Let's be real, cheap modules can be noisy. A low noise floor is critical, especially when dealing with delicate synth voices. Anything above a noticeable hiss under normal operating conditions is a no-go.
Headroom
You don't want clipping on every snare hit. Adequate headroom is vital for handling transient peaks without introducing unwanted distortion. Lack of headroom will choke your signal and kill dynamics.
Input/Output Gain Staging
Proper gain staging is key to getting a clean, usable signal. Modules with adjustable input and output gain allow for more flexibility and prevent unwanted noise or clipping.
Connectivity
Consider the types of connections you need - balanced TRS, unbalanced TS, MIDI, etc. Limited connectivity can severely restrict your modular patching options.
Build Quality
Cheap plastic feels cheap, and that can translate to reliability issues down the line. While you won't get boutique-level construction at this price, the module should feel reasonably solid and well-assembled.
Buying guide
Alright, so you're diving into the modular world but your bank account isn't screaming "Eurorack king." Interface modules are essential - you need to get audio in and out of your modular system, and you don't want to blow your entire budget on a glorified audio cable. We've hunted down some solid options under $200 that won't leave you feeling like you sacrificed too much tone or functionality. Let's get you patching without the panic.
At this price point, expect trade-offs. You're probably not getting pristine, ultra-low noise performance or a ton of fancy features. Most modules will be focused on core functionality - getting audio in and out cleanly.
Pay close attention to noise specs and user reviews - a module that's touted as "budget-friendly" can quickly become a headache if it's constantly introducing unwanted noise. Don't chase features you don't need; a clean, reliable signal path is more valuable than a bunch of gimmicks.
How the AudioFu Index works
Five measured signals and nothing else — no stars from strangers, no “tested by experts” we didn’t do. The weights are fixed and public. We don’t play these instruments; we measure the market around them.
This chart covers 36 interface modules from the Thomann catalogue. Before you buy, read hands-on reviews and, where you can, play it. Full methodology.
AudioFu earns a commission when you buy through our Thomann links. It never changes the order — the index does.
- Demand40%
How many of this exact model are for sale on Reverb right now — what musicians actually buy and resell.
- Lineup20%
How many finishes Thomann stocks — makers expand the models that sell.
- Price15%
Where the price has moved since we started tracking in August.
- Specs15%
How completely the maker documents it.
- Maker10%
How deep the brand’s range is in this category.
Questions
Can I use this module for recording vocals?
Potentially, but manage your expectations. The noise floor will be more noticeable with quieter sources like vocals. You'll need a very clean signal chain and careful gain staging to get usable results. It's not ideal, but it can be done.
What's the difference between a simple mixer module and an interface module?
A mixer module combines multiple signals. An interface module typically focuses on getting audio in/out of a modular system, often with some gain control and sometimes basic routing options. They're not mutually exclusive, some modules do both, but that's the general distinction.
My module is making a high-pitched whine - is that normal?
Absolutely not. That's likely ground loop hum or a noisy component. Try different power supplies and check your patching. If it persists, it's a faulty module and should be returned.
I need MIDI connectivity - can I find that under $200?
Yes, but it's often a basic implementation. Expect limited MIDI ports and potentially fewer advanced features like MIDI filtering or Thru ports. Dedicated MIDI interfaces are usually a better bet if MIDI is your primary concern.
Is it worth buying used?
Definitely! You can often snag a higher-end module for the same price as a new budget option. Just be sure to check for any obvious signs of wear or damage and ask the seller about its history.





