AudioFu Chart · November 2026
Best Mixer, Attenuator Modules Under $500 2026
The top pick is Doepfer A-138b "EXP" Mixer with Logarithmic Pots ($66). Befaco Hexmix Eurorack Synthesizer Module leads the high end. Ranked by the AudioFu Index from 77 models across 28 brands, prices checked every night.
Last updated: November 4, 2026
Top 10
Full detail for the 10 highest AudioFu Index scores. Every other model is listed below.
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Doepfer A-138b "EXP" Mixer with Logarithmic Pots
A-138b · Doepfer
7 for sale on Reverb12 finishes at Thomann
The A-138b is a straightforward, no-frills mixer that's perfect for anyone just starting out with modular synthesis or needing a simple audio summing solution. Its logarithmic potentiometers make it a breeze to manage levels, and the small size is a huge bonus in cramped racks. It's a workhorse module for basic signal blending.
Pros
- Log pots offer smooth, predictable gain staging.
- Compact 8HP footprint maximizes modular space.
- Robust Doepfer build quality ensures long-term reliability.
Cons
- Limited to two input channels; lacks more advanced routing.
- Logarithmic pots can be less flexible for certain modulation tasks.
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The Pico Mixer is a brilliant little utility module if you're tight on space and just need a clean, basic way to combine a few signals. It’s ideal for beginners getting into modular or anyone who needs a super-compact submixer for CV or audio. Don't expect a lot of fancy features, but it does exactly what it's supposed to, reliably.
Pros
- Extremely compact 3HP footprint saves precious rack space.
- Simple, clean signal path avoids unwanted coloration.
- Solid Erica Synths build quality feels robust for its size.
Cons
- Limited to three channels; not suitable for complex mixes.
- Lacks panning capabilities, restricting stereo image manipulation.
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The MIX7 is a seriously handy little module for anyone building a Eurorack system. It's a no-frills mixer perfect for sub-mixes, drum groups, or even simple CV routing—especially valuable if you're tight on space. Great for beginners and experienced modular users alike needing a compact, reliable mixing solution.
Pros
- Extremely compact 3HP design maximizes valuable rack space.
- Solid Tiptop build quality; feels robust and reliable.
- Clean, low-noise circuit preserves signal integrity.
Cons
- Limited to 7 inputs; may not suit complex routing needs.
- Analog design introduces some inherent noise floor at higher levels.
70AudioFu
Index↓ 2.1%since Aug 17 · lowest so far$105 · Aug 17$103 now$103€92 at Thomann · in stockCheck price ↗ -
This Drum Mixer is a sweet addition to any Eurorack setup, especially for those crafting electronic percussion or drum machines. The integrated Vactrol compressor gives your drums a really nice, gluey feel – not sterile at all. It's perfect for sound designers and modular enthusiasts looking for a compact, feature-rich drum processing hub.
Pros
- Vactrol compression adds warmth and dynamic shaping beautifully
- Compact 14HP footprint maximizes modular space efficiency
- Assignable aux sends offer flexible routing and effects processing
Cons
- 3.5mm mini jacks can be fiddly with larger patch cables
- Limited channel EQ or filtering capabilities for detailed sculpting
70AudioFu
IndexStableno change since Aug 17Aug 17$234 now$234€209 at Thomann · in stockCheck price ↗ -
The Hexmix is a fantastic performance mixer for Eurorack, offering a surprising amount of EQ control per channel. It's ideal for sound designers, experimental musicians, or anyone wanting a really clean and flexible way to manage multiple synth voices – just be aware of its HP cost.
Pros
- Excellent EQ flexibility per channel provides tonal shaping
- Solid build quality with robust knobs and sturdy panel
- Master EQ adds further refinement and polish to the mix
Cons
- HP footprint is significant, impacting modular density
- Price point positions it as a premium investment
70AudioFu
IndexStableno change since Aug 17Aug 17$457 now$457€409 at Thomann · in stockCheck price ↗ -
The A-183-3 is a no-frills, reliable DC amplifier perfect for basic signal boosting and attenuation in modular setups. It's a workhorse for beginners getting their feet wet with modular synthesis or anyone needing a simple, clean gain stage – just be mindful of the DC coupling’s potential quirks.
Pros
- Robust Doepfer build quality ensures long-term reliability.
- Simple, clean amplification avoids unwanted coloration of signals.
- Switchable gain provides flexibility for various signal levels.
Cons
- Limited functionality compared to more complex mixer modules.
- DC coupling can introduce unwanted hum or offset with certain signals.
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Erica Synths Black Output V2
Black Output Module V2 · Erica Synths
11 for sale on Reverb1 finish at Thomann
The Black Output Module V2 is a seriously useful addition to any Eurorack. It's a clean, compact way to manage your signals, and the CV-controlled pan is a real game-changer for adding stereo width. This is perfect for anyone needing reliable output mixing and headphone amplification without a ton of space or complexity.
Pros
- Excellent balanced outputs provide clean, noise-free signal routing.
- Headphone preamp delivers a surprisingly powerful and clear listening experience.
- CV-controllable pan adds dynamic stereo movement and creative possibilities.
Cons
- Limited to three inputs, may not suffice for complex setups.
- Power draw is relatively high, consider your PSU's capacity.
68AudioFu
IndexStableno change since Aug 17Aug 17$323 now$323€289 at Thomann · in stockCheck price ↗ -
Erica Synths Black Mixer / Splitter V2
Black Mixer/Splitter V2 · Erica Synths
7 for sale on Reverb1 finish at Thomann
The Black Mixer/Splitter V2 is a no-frills, incredibly compact utility module. It’s perfect for Eurorack users needing basic signal routing in a tight space, or for splitting a single signal to multiple destinations. Its simplicity and small size make it a great addition to any modular system.
Pros
- Extremely compact 4HP footprint maximizes modular space.
- Simple, clean signal path avoids unwanted coloration.
- Versatile input/output routing expands patching possibilities.
Cons
- Limited to 4 inputs, restricting larger mixer needs.
- No attenuators or other signal shaping features.
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Erica Synths Black Mixer / Splitter V2
Black Mixer V2 · Erica Synths
7 for sale on Reverb1 finish at Thomann
The Black Mixer V2 is a seriously useful little module for Eurorack users needing a clean, compact summing solution. It's perfect for attenuating signals, creating unique effects chains with AC coupling, or just consolidating multiple oscillators. This is a workhorse for anyone building a smaller or mid-sized modular synth.
Pros
- Solid build quality with robust Eurorack panel construction
- AC coupling provides unique signal shaping possibilities
- Buffered outputs maintain signal integrity across your modular system
Cons
- Limited to three inputs – not ideal for large modular setups
- AC coupling can introduce unwanted low-frequency buildup
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The Befaco STMix is a remarkably tidy and effective solution for managing multiple audio sources in your Eurorack. It's a great pick for those needing a compact, reliable stereo mixer without excessive features – perfect for smaller racks or anyone prioritizing clean signal routing.
Pros
- Excellent channel isolation minimizes crosstalk in complex modular setups
- Compact 6HP footprint maximizes valuable rack space
- Clean, transparent signal path preserves source audio integrity
Cons
- Limited to four channels; not ideal for large, multi-source systems
- The build quality, while functional, feels a little plasticky for the price
61AudioFu
IndexStableno change since Aug 17Aug 17$164 now$164€147 at Thomann · in stockCheck price ↗
All 77 mixer, attenuator 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 Quadratt 1UIntellijel Designs60Stable$95€85$95€85Check ↗
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Erica Synths Drum Mixer LiteErica Synths60↓ 2.5%$173€155$173€155Check ↗
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Make Noise X-PAN ModuleX-Pan · Make Noise60Stable$323€289$323€289Check ↗
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Befaco STMIX 1U Eurorack Synthesizer Module1U STMix · Befaco59Stable$111€99$111€99Check ↗
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Modbap Modular TransitModbap Modular59↓ 15.0%$222€199$222€199Check ↗
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Intellijel Designs MixupIntellijel Designs57Stable$110€98$110€98Check ↗
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Doepfer A-135-1 QVCA / VCMIX Quad Linear VCA and Voltage Controlled…A-135-1 · Doepfer56Stable$165€148$165€148Check ↗
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Joranalogue Audio Design Mix 3Joranalogue Audio Design56Stable$173€155$173€155Check ↗
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Frap Tools CGM Creative Mixer Series - QSC Stereo ChannelCGM Stereo Channel · Frap Tools55↑ 5.3%$222€199$222€199Check ↗
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Dreadbox Psychosis ModulePsychosis · Dreadbox54Stable$184€165$184€165Check ↗
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Intellijel Designs Unity MixerIntellijel Designs50Stable$96€86$96€86Check ↗
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Xaoc Devices Bytom Impulse IntegratorBytom · XAOC Devices48Stable$95€85$95€85Check ↗
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Frap Tools 333 - ProAudio Sum & Distribution333 · Frap Tools48Stable$119€106$119€106Check ↗
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Behringer 305 EQ/Mixer/Output Eurorack Synthesizer Module305 EQ/Mixer/Output · Behringer45Stable$63€56$63€56Check ↗
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Frap Tools CGM Creative Mixer Series - G GroupCGM Group · Frap Tools42Stable$229€205$229€205Check ↗
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Doepfer A-183-2 Offset GeneratorDoepfer41Stable$57€51$57€51Check ↗
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Doepfer A-183-5Doepfer41Stable$77€69$77€69Check ↗
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Doepfer A-138-6 1UDoepfer41Stable$111€99$111€99Check ↗
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Doepfer A-135-3Doepfer41Stable$153€137$153€137Check ↗
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Doepfer A-135-5Doepfer41Stable$211€189$211€189Check ↗
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Klavis TweakersKlavis · 2 finishes40Stable$82€73$82€73Check ↗
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Klavis MixwitchKlavis · 2 finishes40Stable$155€139$155€139Check ↗
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Intellijel Designs Xfade 1UIntellijel Designs40↓ 2.9%$222€199$222€199Check ↗
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Intellijel Designs Att 1UIntellijel Designs38Stable$28€25$28€25Check ↗
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Intellijel Designs Stereo Mixer 1UIntellijel Designs38Stable$83€74$83€74Check ↗
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Intellijel Designs TriplattIntellijel Designs38Stable$129€115$129€115Check ↗
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Intellijel Designs Aux Mix 1UIntellijel Designs38Stable$229€205$229€205Check ↗
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Intellijel Designs Duatt 1UIntellijel Designs37Stable$94€84$94€84Check ↗
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Befaco Mixer V2Befaco37Stable$106€95$106€95Check ↗
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Befaco AtteBefaco37Stable$106€95$106€95Check ↗
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Befaco A*B+C V2Befaco37Stable$167€149$167€149Check ↗
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Cosmotronic Cosmix Pro SilverCosmotronic · 2 finishes37Stable$468€419$468€419Check ↗
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XAOC Devices SopotXAOC Devices36Stable$99€89$99€89Check ↗
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Klavis Tweakers PlusKlavis36Stable$99€89$99€89Check ↗
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XAOC Devices KoninXAOC Devices36Stable$99€89$99€89Check ↗
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ADDAC 218 AttenuvertersADDAC36Stable$117€105$117€105Check ↗
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Vostok Instruments TraceVostok Instruments36Stable$155€139$155€139Check ↗
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Tiptop Audio Buchla Model 257tTiptop Audio36Stable$188€168$188€168Check ↗
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ADDAC 815 MixologyADDAC36Stable$207€185$207€185Check ↗
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Vostok Instruments AssetVostok Instruments36Stable$221€198$221€198Check ↗
Mixer, Attenuator Modules by the numbers
Measured across all 92 models we track, not a sample.
Median $151 — half of all mixer, attenuator modules here cost less.
How to choose the best mixer, attenuator modules
Noise Floor
This is critical. A noisy mixer is useless. We're listening for hiss, hum, and any unwanted artifacts, especially when attenuating signals. A little noise is expected in Eurorack, but it shouldn't be a distraction.
Gain Staging/Headroom
How much signal can you push through without clipping? A good mixer gives you room to breathe and avoids that harsh digital breakup. You need headroom for unexpected peaks, especially in a live setting.
Attenuation Accuracy
Attenuators should accurately reduce signal levels. Inaccurate attenuation throws off your calibration and makes patching unpredictable. We're checking for consistent level drops across the range.
Routing Flexibility
How many inputs and outputs do you need? Can you easily create subgroups or parallel paths? More routing options open up creative possibilities, especially when recording.
Build Quality & Layout
Let's be honest, at this price point, things won't be battleship-grade. But we're looking for solid pots, reliable jacks, and a layout that's intuitive and doesn't feel cramped.
Buying guide
So, you're diving into modular and realizing a decent mixer is non-negotiable. Forget about patching everything directly into your interface - that gets messy fast. We're focusing on mixer and attenuator modules under $500 that'll actually improve your signal flow and give you some headroom without breaking the bank. Let's find you something that sounds good and doesn't look like a spaghetti junction.
At this budget, you're making trade-offs. Don't expect pristine, ultra-low noise performance like you'd find in a $1000 mixer. Look for modules with decent headroom and accurate attenuation; those are the foundations.
Consider the number of inputs you truly need - extra channels are nice, but they add to the noise floor. Prioritize modules with good routing options over flashy features you won't use.
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 92 mixer, attenuator 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
What's the difference between an attenuator and a mixer?
An attenuator simply reduces a signal's level. A mixer combines multiple signals, often with individual level controls. Many modules combine both functions.
Can I use a Eurorack mixer with other formats like 500-series?
Generally, no. Eurorack uses a specific power and connection format. You'll need a Eurorack-to-500 adapter, which introduces additional complexity and potential signal degradation.
What's a 'noise floor' and why does it matter?
The noise floor is the inherent level of noise generated by the module itself. A low noise floor means cleaner signals and more headroom before distortion. It's especially important for subtle sounds or quiet recordings.
I'm new to modular. How many channels do I really need?
Start with 8-16 channels. It's better to have a few unused channels than to constantly run out of space. You can always expand later.
Are there any modules that offer a good balance of features and price?
Mutable Instruments' Veils is a strong contender, offering a clean signal path and versatile routing. Intellijel's Voltage Architect is another solid choice for attenuating and scaling signals, though it's more focused on that specific task.
