Eurorack Stereo Mixer Module Comparison

Martin Doudoroff

This is a pretty exhaustive and up-to-date basic comparison of all your stereo mixer module options for Eurorack, with an implicit focus on your output stage, although some of these modules are suitable for submixing. Some additional tools of potential interest are listed at the bottom. Related discussion thread: stereo mixer module comparison (MuffWiggler forum)

Latest

2019-11-04 added Catoff Mix
2019-11-03 added Paratek РИТМИКС
2019-09-26 added Alyseum Q-Mix
2019-09-26 added L-1 Discrete VC Stereo Mixer, other updates
2019-09-26 removed Cwejman MX-4AS and Escalation Dominance
Show full revision history

ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
4ms Listen 4
2018

10 HP
Modular Grid >
Web site >
Yes 2-4 2-4 40% 0 0 0 0 Yes 189
  • can be daisy chained with other 4ms Listen modules
  • line level output switch and master attenuator
  • 1/4” output passive expander available
4ms Listen 4 1/4
2018

12 HP
Modular Grid >
Web site >
Yes 4 0 33% 0 0 0 0 Yes 209
  • 1/4" TRS outputs that can be run as balanced or [verify] dual stereo outs
  • can be daisy chained with other 4ms Listen modules
ADDAC Stereo Summing Mixer
2017

80 HP
Modular Grid >
Web site >
Yes 1-5 1-5 6% 5 5 5 (manual) 3 stereo sends pre- or post-fader (switched per channel) Yes 1344
  • product is broken into two modules, one for I/O and one for control
  • expander adds four more fully-featured channels
  • cueing system
  • extensive line level support
Alyseum Q-Mix
2019

6 HP
Modular Grid >
Web site >
Yes 4 0 67% 0 0 0 0 No 120
  • expander adds two stereo channels and three more mono channels
Arrel Audio ER-100 Eurorack Stereo Summing Mixer
2018

28 HP
Modular Grid >
Web site >
Yes 8 1 stereo aux, 1 stereo insert 29% 0 0 8 solo (manual) 1 stereo send Yes 1000
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
Audio Gear Obsession SUMMINGFACILITY
2019

38 HP
Modular Grid >
No 6 aux returns can act as a stereo input 16% 0 0 6 mutes (manual), 6 send mutes (manual) 2 No TBD
  • balanced i/o
  • expanders planned
Befaco HEXA
2017

70 HP
Modular Grid >
Web site >
Yes 6 3 stereo returns 9% 0 6 6 (manual) 3 mono sends post-EQ/fader Yes 1200
  • product is broken into three modules
  • per-channel and master EQ features
  • cueing system
  • LED VU meters for master mix
Befaco STMIX
2019

6 HP
Modular Grid >
Web site >
Yes 0-5 0-5 83% 0 0 0 No 150
  • can be daisy chained together or to the Befaco Hexmix
Blacet MIX3500
????

15 HP
Web site >
Yes (DIY) 1-5 0-2 33% 0 0 0 0 Yes (sort of) 140+
Blue Lantern BMX 6 Channel Stereo Mixer
2015

34 HP
Modular Grid >
Yes (DIY or pre-built) 6 0 18% 0 0 6 (manual) 2 Yes 45+
  • supports line- or eurorack-level inputs
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
Blue Lantern Stereo Sir Mix Alot
2016

24 HP
Modular Grid >
Yes (DIY or pre-built) 6 2 33% 0 0 0 2 No 225
Catoff Mix
2019

24 HP
Modular Grid >
Web site >
Yes 4 2 stereo returns 25% 0 0 4 (manual) 2 No Yes 300
  • clever channel expansion system
  • LED VU meters for master mix
Circuit Abbey Unify
2012

12 HP
Modular Grid >
Web site >
Yes 4 0 33% 0 0 0 0 Yes 250
  • expanders add up to 16 total channels
  • clipping LED indicator
Cwejman MX-4S
2012

20 HP
Modular Grid >
Web site >
Yes 4 0 20% 4 4 0 0 No 900
  • cv over master level
  • LED VU meters for master mix
Doepfer A-135-4A/B/A-138o
2017

30 HP
Modular Grid >
Web site >
Yes 4 0 13% 4 4 4 (cv) 4 No 440
  • expandable up to sixteen channels
  • can be mixed/matched with A-138 modules
  • per-channel gain
  • envelope follower expander
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
Doepfer A-138p/o
2016

20 HP
Web site >
Yes 4 0 20% 0 0 4 (manual) 1 No 150
  • expandable (multiple A-138p per A-138o)
  • per-channel gain
Doepfer A-138s
2017

8 HP
Modular Grid >
Web site >
Yes 4 0 50% 0 0 0 0 No 90
EMW Stereo Mixer
2013

14 HP
Modular Grid >
Web site >
Yes 4 0-2 29% 0 0 0 0 Yes (sort of) 85
Endorphin.es Cockpit
2016

6 HP
Modular Grid >
Web site >
Yes 0 4 67% 0 0 4 mutes 0-2 Yes 259
  • makes extensive use of TTRS connectors
  • compressor
  • partly intended to facilitate use of iOS devices as effects processors
  • design may be strongly biased toward use with other Endorphin.es modules
Erica Synths Black Output
2015

14 HP
Modular Grid >
Web site >
Yes 3 0 21% 1 0 0 0 Yes 300
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
Erica Synths Stereo Mixer v2
2017

10 HP
Modular Grid >
Web site >
Yes 1 3 40% 1 0 0 0 No 146
  • Pre-fade Listen Expander available adds headphone output and cueing
Frap Tools CGM
2016

30 HP
Modular Grid >
Web site >
Yes 3+ 2+ 10% 3+ 3+ 3+ (manual) 2+ pre- or post-fader (switched per channel) Yes $950+
  • unique expandable modular design (picture shows only one possible combo)
  • extensive VCA support on everything
  • solo functionality (requires Group module)
  • pre-fader cueing (requires Master module)
  • LED VU meters for master mix (Master module)
GRP Stereo Out Module
2017

16 HP
Modular Grid >
Web site >
Yes 3-4 0-1 25% 0 0 0 0 Yes 350
Happy Nerding Panmix
2016

16 HP
Modular Grid >
Web site >
Yes 4-6 (switches on back) 0-2 (switches on back) 38% 0-6 0-6 0 0 Yes (sort of) 300-350
  • LED VU meters for master mix
  • headphones and main outputs share one attenuator
  • inputs 3 and 6 can accept stereo mini jacks depending on switches on back of panel
  • can be daisy chained with other Happy Nerding stereo modules
Happy Nerding Panmix Jr.
2018

6 HP
Modular Grid >
Web site >
Yes 3 0 50% 0 0 0 0 No 100
  • can be daisy chained with other Happy Nerding stereo modules
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
Happy Nerding 2xSAM
2019

4 HP
Modular Grid >
Web site >
Yes 0 2 50% 0 0 0 0* 2 post-fader No 90
  • two channel stereo mixer/attenuator
  • *this module is intended first as a stereo send/return for effects equipment
  • 5X gain available (jumper)
  • can be daisy chained with other Happy Nerding stereo modules
Happy Nerding 3X Stereo Mixer
2018

6 HP
Modular Grid >
Web site >
Yes 1-3 1-3 50% 0 0 2 (manual) 0 Yes (sort of) 100
  • can be daisy chained with other Happy Nerding stereo modules
Intellijel Dubmix
2018

28 HP
Modular Grid >
Web site >
Discontinued 4 1 stereo aux input (2 more with expander) 14% 4 4 (but requires expander for use) 4 (manual) 1 mono send, 1 stereo return; additional sends with expander No 600
  • expanders add two more aux sends and/or CV control over channel levels
  • elaborated AUX send architecture (see docs)
  • LED VU meters for master mix
Intellijel Mixup
2017

6 HP
Modular Grid >
Web site >
Yes 2-4 0-2 67% 0 0 3 (manual mutes) 0 No 90
  • no panning controls
  • chainable indefinitely
JPSynth Stereo Mixer
2018

8 HP
Modular Grid >
Web site >
Yes 0-4 0-4 50% 0 0 0 0 No 113
  • master attenuator
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
Knob Farm Hyrlo
2018

4 HP
Modular Grid >
Web site >
Yes 0-6 0-3 75% 0 0 0 0 No 90
Koma Elektronik Poltergeist
2013

28 HP
Modular Grid >
Web site >
Yes 4 1 aux in 14% 4 4, plus master 4 (manual) 0 No 800
  • elaborated stereo or quad panning features
  • compression feature
  • self-patching-oriented design
L-1 Discreet VC Stereo Mixer
2019

22 HP
Modular Grid >
Yes (DIY or pre-built) 0 4 18% 4 4 0 0 No 590
  • master level cv
  • LED VU meters for master mix
  • mute expander
  • insert expander
L-1 VC Stereo Mixer
2013

22 HP
Modular Grid >
Web site >
Yes (DIY or pre-built) 4 0 18% 4 4 0 0 Yes (sort of) 155+
  • master level cv
  • LED VU meters for master mix
L-1 Two Channel Voltage Controlled Stereo Mixer.
2016

14 HP
Modular Grid >
Web site >
Yes (DIY or pre-built) 1-2 1-2 14% 2 4 0 2 stereo sends; no returns 0 115+
  • LED VU meters
  • full CV over level and pan (but not the SEND)
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
L-1 Unity gain Stereo Mixer
2016

12 HP
Modular Grid >
Web site >
Yes (DIY or pre-built) 0 10 83% 0 0 0 0 0 68+
  • (this is a straightforward high capacity unity mixer meant to pull together an expandable stereo mixing combination with other modules)
Ladik M-175 (and M-171, M-172, M-173, and M-174)
2016

12 HP
Modular Grid >
Web site >
Yes 2-6 1-4 50% 0 0 0 0 0 TBD
  • available in various configurations
  • M-177 and M-178 expanders
Make Noise X-Pan
2019

10 HP
Modular Grid >
Web site >
Yes 2-3 0-1 30% 2 1-3 0 0 No 259
  • output is modular level
  • two of the three channels are voltage-controlled crossfader circuits
OIIIAUDIO Quad Mixer
2019

24 HP
Modular Grid >
Web site >
Yes 4 0 17% 4 0 0 0 Yes 349
Paratek РИТМИКС
2019

12 HP
Modular Grid >
Yes 8 0 67% 0 0 0 0 No 200
  • mute button for the entire mix
  • LED VU meters
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
ph Mixer++
2019

12 HP
Modular Grid >
Web site >
Yes 3-4 0-1 33% 0 0 4 (manual) 1 mono send No 165
  • output is 3.5mm TRS stereo
  • per channel pan (manual)
  • per channel aux send level (manual)
Pittsburgh Lifeforms System Interface
2017

24 HP
Modular Grid >
Web site >
Yes 6 1 stereo AUX return 25% 0 0 0 1 mono send Yes 250
  • discreet aux, bus and main paths with per-channel switching
  • LED levels
  • first channel designed to double as an external input
ProModular MIIIIX
2014

18 HP
Modular Grid >
Web site >
Discontinued 4 0 22% 4 4 4 (manual) Expander post-fader Yes (sort of) 600
  • expanders add AUX send/returns, cv control over mute/solo and other features
  • up to four MIIIX can be chained for up to 16 total channels
  • extra output configuration options
Qu-Bit Mixology
2017

28 HP
Modular Grid >
Web site >
Yes 4 1 stereo AUX return 14% 4 4 4/4 (manual) 1 No 400
  • LED VU meters for master mix
Random*Source Stereo Mixer
2017

18 HP
Modular Grid >
Web site >
Yes 2 0 11% 2 2 0 0 No 250
  • DIY
  • left and right aux inputs (unity)
  • balanced outputs
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
Rebel Technology Mix 01
2017

10 HP
Modular Grid >
Web site >
Yes 4 0 40% 0 0 0 0 Yes (sort of) 115
  • matrix mixer design
  • rear bus interconnect options for chaining
Rebel Technology Mix 02
2017

10 HP
Modular Grid >
Web site >
Yes 4 0 40% 0 0 0 0 Yes (sort of) 150
  • rear bus interconnect options for chaining
Roland SYSTEM-500 531 MIX
2018

20 HP
Modular Grid >
Web site >
No 4-6 0-1 30% 6 0 6 (manual) 0 Yes 399
  • stereo preamp with 1/4" jack
Sputnik 6-Channel Stereo Mixer
2014

20 HP
Modular Grid >
Web site >
Yes 6 0 30% 2 0 4 (manual) 0 Yes 250
  • LED VU meters for master mix
Sputnik Quadrophonic Mixer
2015

28 HP
Modular Grid >
No 1 (plus one per expander) 0 4% 1 1 0 TBD Yes TBD
  • onboard EQ
  • onboard reverb
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
ST-Modular SUM
2018

26 HP
Modular Grid >
Web site >
No 5 1 stereo input, 1 stereo aux return 27% 0 0 5 1 Yes TBD
  • DIY-only
  • the five mono channels have manual EQ control
Strange Science Instruments M-4 Advanced Stereo Mixer
2018

28 HP
Modular Grid >
Web site >
Yes 4 0 14% 4 4 0 0 No 700
  • variable gain switch for the VCAs
Synthrotek MST Stereo Output Mixer
2015

6 HP
Modular Grid >
Web site >
Yes 2-4 0-2 67% 0 0 0 0 No 85
  • no cv control, but circuit is both AC and DC coupled
  • dual stereo outs
  • unusual 2 channel, 2 inputs-per-channel configuration
Takaab Nearness
2018

3 HP
Modular Grid >
Web site >
Yes 7 0 133% 0 0 0 0 No 50
  • the input jack you select corresponds to relative pan placement in the stereo field
Tesseract Tex-Mix
2019

32 HP
Modular Grid >
Yes (DIY or pre-built) 4-8 0-4 25% 0 4 8 (manual) 2 mono sends, 2 stereo returns Yes 250
  • expandable modular design (this is only one possible configuration)
  • cue system
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
Toppobrillo Stereomix
2016

24 HP
Modular Grid >
Web site >
Discontinued 4 1 stereo AUX return 17% 4 4 4 (manual) 1 mono send, 1 stereo return Yes 550
  • cv over AUX send for each channel
  • LED level indicators for master mix
Toppobrillo Stereomix 2
2019

24 HP
Modular Grid >
Yes 4 1 stereo AUX return 17% 4 4 4 (manual) 1 mono send, 1 stereo return Yes 480
  • cv over AUX send for each channel
  • LED level indicators for master mix
Verbos Scan & Pan
2015

14 HP
Modular Grid >
Web site >
Yes 4 0 29% 4 4 0 0 No 400
  • cv-controlled center/width control as per harmonic oscillator
  • LED level indicators per channel
WMD Performance Mixer
2016

40 HP
Modular Grid >
Web site >
Yes 6 2 20% 8 8 0 2 post-gain, pre-fader (requires DB25 expander) Yes 750
  • 6 mono channels, each with 2 switched inputs
  • 2 true stereo channels
  • 2 mono send/returns
  • one stereo insert
  • one end of chain stereo send/return, dual input buses
  • cueing system
  • various LED indicators
  • full headphone support
  • expanders add mute controls, two additional full stereo channels
Worng Sound Stage
2018

12 HP
Modular Grid >
Web site >
Yes 22 0 183% 0 0 0 0 No 350
  • the input jack you select corresponds horizontally to relative pan placement in the stereo field
  • vertical jack selection corresponds to EQ-like filtration (controlled overall manually or with CV)
  • manual and CV-control over output level
ProductShippingMono InputsStereo InputsChannel Density/HPCV PanningCV VCAsMute/SoloSendsIndividual OutsHeadphone OutApprox. Price (USD)Additional Notes
XAOC Praga
2012

20 HP
Modular Grid >
Web site >
Yes 4 2 stereo returns 20% 4 4 4 (manual, CV with expander) 2 mono sends, 2 stereo returns post-fader No 515
  • individual LED VU meters per channel
  • cv for each VCA switchable between unipolar and bipolar
  • two units can be chained for eight channels
  • HRAD expander adds additional CV and full master section

In addition, these modules don’t really belong in the above comparison but have been pointed out as being of potential interest:

• • •