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AudioFu Chart · October 2026

Best Mixer, Attenuator Modules for Professional 2026

The top pick is Frap Tools CGM Quad Stereo Channel ($592). Befaco Hexmix Eurorack Synthesizer Module gives you the most for the money at $458. Ranked by the AudioFu Index from 81 models across 29 brands, prices checked every night.

Last updated: October 15, 2026

81models in this chart
29brands
$156median price
13price drops since Aug

Narrow the chart

All Mixer, Attenuator Modules Showing: For Professional · clear
Price
Skill level
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Top 10

Full detail for the 10 highest AudioFu Index scores. Every other model is listed below.

  1. Frap Tools CGM Quad Stereo Channel

    Frap Tools

    Not on Reverb yet1 finish at Thomann

    The Frap Tools CGM Quad Stereo Channel is a seriously well-engineered mixer module. It’s perfect for those building larger, more complex modular systems who need precise control and flexible routing—especially if you're already invested in the CGM ecosystem. The CV control is a real highlight, allowing for incredibly dynamic and evolving mixes.

    Pros

    • Exceptional build quality with robust metal chassis and tight tolerances
    • Flexible aux sends offer extensive routing possibilities for complex signal chains
    • CV control over multiple parameters unlocks expressive, dynamic mixing

    Cons

    • 18HP footprint can be restrictive in smaller modular setups
    • Power draw is relatively high, demanding a powerful PSU
    36AudioFu
    Index
    • Demand30
    • Lineup27
    • Price50
    • Maker60
    Stableno change since Aug 14
    Aug 14$592 now
    $592€529 at Thomann · in stock
    Check price ↗

  2. Xaoc Devices Praga Voltage Controlled Mixing Console

    Praga · XAOC Devices

    8 for sale on Reverb1 finish at Thomann

    The Praga is a beautifully designed, sonically clean mixer that's perfect for Eurorack users serious about stereo imaging. It's a great central hub for complex modular patches, particularly those involving multiple sound sources needing precise volume and panning control. If you’re building a serious, stereo-focused modular system, this is a must-have component.

    Pros

    • Excellent headroom, handles hot signals with ease
    • AUX sends offer flexible routing for effects chains
    • Intuitive layout simplifies complex stereo mixing tasks

    Cons

    • Power consumption is relatively high for a mixer module
    • Limited routing options compared to more expansive modular mixers
    60AudioFu
    Index
    • Demand81
    • Lineup27
    • Price50
    • Maker60
    Stableno change since Aug 14
    Aug 14$514 now
    $514€459 at Thomann · in stock
    Check price ↗

  3. XAOC Devices Ostrawa

    XAOC Devices

    Not on Reverb yet1 finish at Thomann

    The Ostrawa is a beautifully designed and sonically transparent stereo mixer. It's a fantastic centerpiece for complex modular setups, especially those emphasizing spatial audio and dynamic control—perfect for ambient soundscapes, experimental electronic music, or anyone needing pristine stereo summing. It's a high-end component that truly elevates a modular system’s sonic potential.

    Pros

    • Exceptional stereo imaging due to careful circuit design.
    • Aux sends provide flexible routing for external effects.
    • CV control over level and balance enables dynamic mixing possibilities.

    Cons

    • 20HP footprint can be limiting in smaller modular systems.
    • Lacks EQ or tone shaping capabilities, purely a mixer.
    36AudioFu
    Index
    • Demand30
    • Lineup27
    • Price50
    • Maker60
    Stableno change since Aug 14
    Aug 14$536 now
    $536€479 at Thomann · in stock
    Check price ↗

  4. Neuzeit Instruments Quasar

    Neuzeit Instruments

    Not on Reverb yet1 finish at Thomann

    The Quasar is a seriously cool module for sound designers and experimental musicians who want to craft believable 3D audio. It’s a complex beast, but the ability to individually sculpt the spatial characteristics of each input is mind-blowing – perfect for creating evolving soundscapes and unique effects.

    Pros

    • Exceptional binaural processing creates genuinely immersive, spatial audio landscapes.
    • Flexible signal routing offers immense creative possibilities for sound design.
    • Intuitive OLED display and encoders streamline complex parameter adjustments.

    Cons

    • 16 TE width can be restrictive in smaller Eurorack cases.
    • Steep learning curve; mastering the spatial parameters takes dedication.
    32AudioFu
    Index
    • Demand30
    • Lineup27
    • Price50
    • Maker23
    Stableno change since Aug 14
    Aug 14$536 now
    $536€479 at Thomann · in stock
    Check price ↗

  5. Befaco Hexmix Eurorack Synthesizer Module

    Hexmix · Befaco

    9 for sale on Reverb1 finish at Thomann

    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
    63AudioFu
    Index
    • Demand85
    • Lineup27
    • Price50
    • Maker65
    Stableno change since Aug 14
    Aug 14$458 now
    $458€409 at Thomann · in stock
    Check price ↗

  6. NANO Modules Performance Mixer

    NANO Modules

    Not on Reverb yet1 finish at Thomann

    This NANO Modules Performance Mixer is a seriously useful tool for Eurorack users wanting hands-on control and automation. It's ideal for live performers and studio engineers needing precise level adjustments and flexible routing – the CV looper alone makes it a standout. It’s a premium-priced mixer that brings a lot of performance-oriented features into a compact footprint.

    Pros

    • Excellent CV looper offers real-time performance automation.
    • Faders feel solid and responsive; a noticeable quality upgrade.
    • Stereo effect returns provide flexible routing options.

    Cons

    • Limited mono channel count might restrict complex stereo setups.
    • Build quality, while good, feels slightly plasticky for the price.
    35AudioFu
    Index
    • Demand30
    • Lineup27
    • Price50
    • Maker46
    Stableno change since Aug 14
    Aug 14$509 now
    $509€455 at Thomann · in stock
    Check price ↗

  7. Cosmotronic Cosmix Pro Black

    Cosmotronic

    Not on Reverb yet2 finishes at Thomann

    The Cosmix Pro Black is a seriously useful little mixer for Eurorack setups. It's a well-built, compact solution for managing multiple signals, and the aux sends are a great bonus for adding external effects. This is perfect for modular synth enthusiasts who need a clean, efficient way to route and process audio without breaking the bank.

    Pros

    • Solid build quality with robust faders; smooth, musical EQ shaping; versatile aux sends for external effects; compact depth saves valuable Eurorack space

    Cons

    • Limited headroom at higher levels; panorama CV inputs lack fine-tuning control; mono effect return lacks dedicated level control
    37AudioFu
    Index
    • Demand30
    • Lineup43
    • Price50
    • Maker37
    Stableno change since Aug 14
    Aug 14$469 now
    $469€419 at Thomann · in stock
    Check price ↗

  8. ADDAC 814 6x6 Stereo Matrix Mixer

    ADDAC

    Not on Reverb yet1 finish at Thomann

    The ADDAC 814 is a serious routing powerhouse for modular enthusiasts. It’s not a simple mixer; it’s a matrix, offering incredible signal flow possibilities, but be prepared to invest time learning its intricacies. Perfect for experimental sound designers and those building complex, multi-signal chains.

    Pros

    • Excellent routing flexibility for complex modular setups.
    • Robust construction; feels solid despite its size.
    • Switchable Eurorack/line level offers great adaptability.

    Cons

    • The physical size (25+8 TE) demands considerable space.
    • Learning curve is steep; matrix mixers aren't inherently intuitive.
    34AudioFu
    Index
    • Demand30
    • Lineup27
    • Price42
    • Maker54
    ↑ 2.6%since Aug 14
    $435 · Aug 14$447 now
    $447€399 at Thomann · in stock
    Check price ↗

  9. u-he CEN2RION

    u-he

    Not on Reverb yet1 finish at Thomann

    This unit is great for stacking two distinct sound layers without fighting for control. You can choose between a smooth or discrete character for each layer, which helps shape how signals blend together. It fits easily into a rack at just 32 mm deep, but the wide 14 HP footprint takes up significant space. Best for builders who want flexible CV mixing without extra gear.

    Pros

    • Two independent scanning mixers for layered sound design
    • Smooth or discrete character selectable for every layer
    • Built-in attenuators handle the full CV voltage range

    Cons

    • 14 HP width is large for a single module
    • No dedicated MIDI or USB control ports listed
    34AudioFu
    Index
    • Demand30
    • Lineup27
    • Price50
    • Maker37
    Stableno change since Aug 17
    Aug 17$435 now
    $435€389 at Thomann · in stock
    Check price ↗

  10. Tobinski Interpolating Scanner

    Tobinski

    Not on Reverb yet1 finish at Thomann

    Tobinski's Interpolating Scanner is a seriously creative tool for sound design and sequencing. It's fantastic for experimental musicians and those wanting to add movement and evolving textures to their patches – the interpolation is silky smooth, a real step up from simpler scanners. The flexible routing is a huge plus, allowing for complex signal manipulation.

    Pros

    • Exceptional interpolation smoothness, avoids harsh stepping.
    • Robust build quality with sturdy faders and knobs.
    • Flexible routing options with multiple outputs.

    Cons

    • 18HP footprint can be restrictive in smaller racks.
    • Price point may be a barrier for budget-conscious users.
    33AudioFu
    Index
    • Demand30
    • Lineup27
    • Price58
    • Maker23
    ↓ 2.5%since Aug 14 · lowest so far
    $447 · Aug 14$435 now
    $435€389 at Thomann · in stock
    Check price ↗

All 81 mixer, attenuator modules

Same index, same nightly prices — compact. Colour options of one model share a row. Tap a photo to zoom.

  1. 11
    Hexinverter Électronique Mutant Hot GlueHexinverter Électronique
    Index 34↓ 4.6%
    34
    ↓ 4.6%$373€333
    $373€333Check ↗
  2. 12
    u-he CVilizationu-he
    Index 34Stable
    34
    Stable$367€328
    $367€328Check ↗
  3. 13
    AJH Synth Muting Mixer & VCA blackAJH Synth
    Index 32Stable
    32
    Stable$335€299
    $335€299Check ↗
  4. 14
    Doepfer A-138b "EXP" Mixer with Logarithmic PotsA-138M · Doepfer · 12 finishes
    Index 87Stable
    87
    Stable$167€149
    $167€149Check ↗
  5. 15
    Erica Synths Pico MixerDrum Mixer · Erica Synths
    Index 70Stable
    70
    Stable$234€209
    $234€209Check ↗
  6. 16
    Erica Synths Black Output V2Black Output Module V2 · Erica Synths
    Index 70Stable
    70
    Stable$324€289
    $324€289Check ↗
  7. 17
    Erica Synths Drum Mixer LiteErica Synths
    Index 65↓ 8.3%
    65
    ↓ 8.3%$174€155
    $174€155Check ↗
  8. 18
    Doepfer A-135-1 QVCA / VCMIX Quad Linear VCA and Voltage Controlled…A-135-1 · Doepfer
    Index 63Stable
    63
    Stable$166€148
    $166€148Check ↗
  9. 19
    Make Noise X-PAN ModuleX-Pan · Make Noise
    Index 61Stable
    61
    Stable$324€289
    $324€289Check ↗
  10. 20
    Modbap Modular TransitModbap Modular
    Index 58↓ 23.2%
    58
    ↓ 23.2%$223€199
    $223€199Check ↗
  11. 21
    Befaco STMix Eurorack Synthesizer ModuleSTMix · Befaco
    Index 57Stable
    57
    Stable$165€147
    $165€147Check ↗
  12. 22
    Dreadbox Psychosis ModulePsychosis · Dreadbox
    Index 56Stable
    56
    Stable$185€165
    $185€165Check ↗
  13. 23
    Frap Tools CGM Creative Mixer Series - QSC Stereo ChannelCGM Stereo Channel · Frap Tools
    Index 56↑ 5.3%
    56
    ↑ 5.3%$223€199
    $223€199Check ↗
  14. 24
    Joranalogue Audio Design Mix 3Joranalogue Audio Design
    Index 54Stable
    54
    Stable$174€155
    $174€155Check ↗
  15. 25
    Doepfer A-135-5Doepfer
    Index 43↓ 3.1%
    43
    ↓ 3.1%$212€189
    $212€189Check ↗
  16. 26
    Frap Tools CGM Creative Mixer Series - G GroupCGM Group · Frap Tools
    Index 42Stable
    42
    Stable$230€205
    $230€205Check ↗
  17. 27
    Tiptop Audio MIX7 2018MIX7 Black · Tiptop Audio · 2 finishes
    Index 69↓ 3.3%
    69
    ↓ 3.3%$100€89
    $100€89Check ↗
  18. 28
    Intellijel Designs Xfade 1UIntellijel Designs
    Index 40↓ 2.9%
    40
    ↓ 2.9%$223€199
    $223€199Check ↗
  19. 29
    Klavis Mixwitch BlackKlavis · 2 finishes
    Index 40Stable
    40
    Stable$162€145
    $162€145Check ↗
  20. 30
    Intellijel Designs Aux Mix 1UIntellijel Designs
    Index 38Stable
    38
    Stable$230€205
    $230€205Check ↗
  21. 31
    Befaco A*B+C V2Befaco
    Index 37Stable
    37
    Stable$167€149
    $167€149Check ↗
  22. 32
    ADDAC 815 MixologyADDAC
    Index 36Stable
    36
    Stable$207€185
    $207€185Check ↗
  23. 33
    Vostok Instruments AssetVostok Instruments
    Index 36Stable
    36
    Stable$222€198
    $222€198Check ↗
  24. 34
    Vostok Instruments HiveVostok Instruments
    Index 36Stable
    36
    Stable$223€199
    $223€199Check ↗
  25. 35
    ADDAC 713 Stereo Discrete MixerADDAC
    Index 36Stable
    36
    Stable$268€239
    $268€239Check ↗
  26. 36
    Tiptop Audio Buchla Model 207tTiptop Audio
    Index 36Stable
    36
    Stable$279€249
    $279€249Check ↗
  27. 37
    Doepfer A-135-3Doepfer
    Index 41Stable
    41
    Stable$153€137
    $153€137Check ↗
  28. 38
    4ms Listen Four4ms
    Index 35↓ 2.0%
    35
    ↓ 2.0%$218€195
    $218€195Check ↗
  29. 39
    Erica Synths Black Mixer / Splitter V2Black Mixer V2 · Erica Synths
    Index 59Stable
    59
    Stable$106€95
    $106€95Check ↗
  30. 40
    Shakmat Modular Griffin's ClawsShakmat Modular
    Index 34Stable
    34
    Stable$324€289
    $324€289Check ↗
  31. 41
    Shakmat Modular Aeolus MixerShakmat Modular
    Index 34Stable
    34
    Stable$166€148
    $166€148Check ↗
  32. 42
    Tiptop Audio Buchla Model 257tTiptop Audio
    Index 33↑ 5.7%
    33
    ↑ 5.7%$188€168
    $188€168Check ↗
  33. 43
    4ms Listen Four Quarters4ms
    Index 33↑ 1.4%
    33
    ↑ 1.4%$252€225
    $252€225Check ↗
  34. 44
    Bastl Instruments BuddyBastl Instruments
    Index 32Stable
    32
    Stable$174€155
    $174€155Check ↗
  35. 45
    Schlappi Engineering EddySchlappi Engineering
    Index 32Stable
    32
    Stable$324€289
    $324€289Check ↗
  36. 46
    Vostok Instruments TraceVostok Instruments
    Index 36Stable
    36
    Stable$156€139
    $156€139Check ↗
  37. 47
    Vostok Instruments PathVostok Instruments
    Index 36Stable
    36
    Stable$156€139
    $156€139Check ↗
  38. 48
    Frap Tools CGM Creative Mixer Series - I InsertCGM I (Insert) · Frap Tools
    Index 34Stable
    34
    Stable$156€139
    $156€139Check ↗
  39. 49
    NANO Modules ST-MARNANO Modules
    Index 35Stable
    35
    Stable$151€135
    $151€135Check ↗
  40. 50
    Befaco STMIX 1U Eurorack Synthesizer Module1U STMix · Befaco
    Index 51Stable
    51
    Stable$111€99
    $111€99Check ↗

Mixer, Attenuator Modules by the numbers

Measured across all 96 models we track, not a sample.

Price distribution

Median $156 — half of all mixer, attenuator modules here cost less.

2
28
16
18
14
7
6
5
<$50$50–100$100–150$150–200$200–300$300–400$400–500$500+

How to choose the best mixer, attenuator modules

Gain Staging & Headroom

Pro modules need serious headroom. Clipping during a live performance or while tracking is a non-starter. Look for modules that can handle hot signals without introducing unwanted distortion unless that's the effect you're going for - a subtle saturation can be nice, but unpredictable breakup isn't.

Attenuation Accuracy

A sloppy attenuator will ruin your mixer's stereo image and introduce phase issues. We're talking about precise, repeatable attenuation-especially crucial when using VCAs and complex modulation sources.

Routing Flexibility

Professional rigs often involve multiple signal paths. Modules with flexible routing options (pre/post attenuation switches, multiple inputs/outputs) are essential for complex patching and signal manipulation.

Noise Floor

A noisy mixer is a deal-breaker. Listen carefully for hiss or hum, especially when attenuating signals. A low noise floor is paramount when you're trying to capture subtle nuances in your sound.

Build Quality & Reliability

Let's be honest, modular synths are an investment. Cheap plastic pots and flimsy wiring are a recipe for disaster on stage. Look for robust construction and high-quality components that can withstand the rigors of gigging.

Buying guide

Alright, so you're wrestling with a modular rig that's spitting out more signals than you can handle. Mixer and attenuator modules aren't just 'nice to haves' anymore; they're essential for taming that beast and actually getting a usable, gig-ready sound. Forget the flimsy, one-knob affairs-we're talking about modules that offer real control and headroom when you're building soundscapes for a live set or tracking a complex patch. Let's dive into what separates the wheat from the chaff.

Don't be fooled by flashy features. A simple, well-built attenuator will always outperform a feature-laden mess. Pay close attention to the taper of the attenuators - a logarithmic taper feels more natural for volume adjustments.

Be prepared to spend a bit more for modules with truly accurate attenuation and a low noise floor; those corners often get cut on budget modules and it shows in the final sound. Ultimately, choose modules that complement your workflow and sonic goals.

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 96 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 primarily reduces signal level-it's a voltage-controlled resistor. A mixer combines multiple signals, often with adjustable levels for each. You'll often want both in your modular setup.

Can I use a regular audio mixer with my modular?

Technically, yes, but you'll likely lose a lot of headroom and introduce unwanted noise. Modular signals often have unique voltage ranges and impedance characteristics that external mixers aren't designed to handle.

What's a 'unity gain' attenuator?

It's an attenuator that can pass a signal without reducing its level. This is useful for impedance matching or when you need to preserve the original signal strength.

How important is the attenuator taper?

It's surprisingly important. A logarithmic taper (like a potentiometer) feels more natural for volume adjustments - it's more proportional to the rotation of the knob. Linear tapers can feel abrupt and unnatural.

My modular mixer is introducing distortion. What's happening?

You're likely overloading the mixer's internal circuitry. Check your signal levels, reduce the attenuation, or consider a mixer with more headroom.

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#1 · AudioFu Index 36Frap Tools CGM Quad Stereo Channel · $592€529
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 Check price ↗