Pricing and availability

We compare 600+ stores and found this item at 3 stores. Prices updated .

Average Price: $564

Standard/Professional

$200

$1001+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 2 merchants for "Keith McMillen Instruments K-Mix". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Keith McMillen Instruments K-Mix is your multi-faceted companion in both live and studio settings, offering a unique blend of audio interface, control surface, and programmable mixer functionalities. This compact, yet powerful device saves space without compromising on performance, providing you with an all-in-one solution for your audio mixing needs.

The K-Mix features two low-noise preamps, accessible through XLR/TRS combo jacks, and is capable of supplying 48V phantom power. This versatile mixer also provides six TRS line inputs, bringing the total to eight balanced inputs for handling a wide range of audio sources.

One of the standout features of the K-Mix is its multi-function, touch-sensitive strip faders and rotary controllers. These controls offer precise input power and are delightfully intuitive to use, adding a touch of finesse to your mixing experience. Coupled with onboard DSP that includes Compressor/Limiter, Gate, Pan, and EQ, the K-Mix caters to the demands of professional audio mixing.

For those looking to experiment with surround sound, the K-Mix supports 5.1, 7.1, and Octo playback, allowing you to create immersive audio landscapes. With its wide range of features and user-friendly design, the Keith McMillen Instruments K-Mix is a reliable partner for any audio professional.

Key Features:

  • Audio interface, control surface, and programmable mixer in one compact unit.
  • Two low-noise preamps with XLR/TRS combo jacks, capable of supplying 48V phantom power.
  • Six TRS line inputs for a total of eight balanced inputs.
  • Multi-function, touch-sensitive strip faders and rotary controllers.
  • Onboard DSP includes Compressor/Limiter, Gate, Pan, EQ.
  • Supports 5.1, 7.1, and Octo surround sound mixing.

Product specs

Brand Keith McMillen Instruments
Model K-Mix Performance Mixer
Finish Black
Year 2010s
Categories Audio Interfaces
Bit Depth 24-bit
Bus-Powered Yes
Compatibility Windows, macOS
Computer Connectivity USB
Electronics Analog, Digital, Solid State
Format Desktop Standalone
Number of Analog Inputs 8
Number of Analog Outputs 8
Number of Channels 16
Number of Digital Inputs 0
Number of Digital Outputs 0
Number of Headphone Outputs 1
Number of MIDI Inputs 0
Number of MIDI Outputs 0
Number of Mic Preamps 2
Sample Rate 96 khz
Simultaneous I/O 8 x 8

FAQs

Is the Keith McMillen Instruments K-Mix compatible with both Windows and macOS systems?

Yes, the K-Mix is compatible with both Windows and macOS, making it versatile for different studio setups.

How many channels does the K-Mix offer for simultaneous input and output?

The K-Mix provides 8 x 8 simultaneous input and output channels, allowing for comprehensive audio routing in your setup.

Does the K-Mix require an external power supply, or is it bus-powered?

The K-Mix is bus-powered, meaning it draws power directly from your computer via USB, eliminating the need for an external power supply.

What is the sample rate and bit depth of the K-Mix?

The K-Mix supports a sample rate of up to 96 kHz and a bit depth of 24-bit, ensuring high-quality audio performance.

How many mic preamps are included in the K-Mix, and are they suitable for professional recording?

The K-Mix includes 2 mic preamps, which are designed to deliver clean and clear audio, suitable for professional recording applications.

sonicstate

sonicstate

Keith McMillen K-MIX - SonicLAB Review

Video thumbnail for Keith McMillen K-MIX - SonicLAB Review by sonicstate

Keith McMillen K-MIX - SonicLAB Review

sonicstate

sonicstate

Video thumbnail for Keith McMillen Instruments K-Mix Performance Mixer Review by Sweetwater by Sweetwater

Keith McMillen Instruments K-Mix Performance Mixer Review by Sweetwater

Sweetwater

Sweetwater

Video thumbnail for Review: Keith McMillen K-Mix Digital Mixer, Interface, & Control Surface by SoundsAndGear

Review: Keith McMillen K-Mix Digital Mixer, Interface, & Control Surface

SoundsAndGear

SoundsAndGear

Video thumbnail for Keith McMillen Instruments K-Mix by Kraft Music

Keith McMillen Instruments K-Mix

Kraft Music

Kraft Music

Video thumbnail for Keith McMillen Instruments K-Mix Review by All Things Gear

Keith McMillen Instruments K-Mix Review

All Things Gear

All Things Gear

Reviews

PROS

  • Great clean sound quality enhances audio projects

  • Intuitive software/hardware integration for easy use

  • Highly flexible, replacing multiple gear pieces

  • Durable design with no moving parts, less prone to break

  • Touch controls provide a unique, quality feel

  • Compatible with laptop and iOS devices for versatile setups

  • Onboard effects add to the creative toolkit

  • Easy to save and switch between presets for various uses

CONS

  • Soft-touch plastic may deteriorate into a sticky mess

  • Master output levels limited, potentially underwhelming

  • Touch controls require an adjustment period, not for everyone

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Keith McMillen Instruments K-Mix.

Features and functionality

  • The K-Mix offers multiple aux sends, crucial for users needing compact mixers with comprehensive routing capabilities.

    Source
  • The K-Mix can function as both a standalone mixer and a DAW controller, although it lacks dedicated effects sends.

    Source

Software and compatibility

  • Some Windows users have experienced issues with faulty touch sliders, highlighting potential reliability concerns.

    Source
  • A user reported timely and knowledgeable support experiences, with K-Mix documentation being notably well-organized and easy to follow, enhancing the user experience.

    Source

User experience

  • Owners note that the customer service can be unresponsive, particularly with hardware issues like uneven output levels on specific channels.

    Source
  • The touch faders on the K-Mix feature a VU display directly on the fader, which is appreciated for its utility, though the rubbery feel may not suit everyone.

    Source

Comparisons

  • The Roland MX-1 is frequently chosen as an alternative, praised for its USB inputs and compatibility with other Roland gear.

    Source
  • Some users have switched from Apogee interfaces to the K-Mix, citing comparable preamp quality and additional functionality like DSP standalone and programmable MIDI.

    Source
  • The K-Mix offers 8 assignable 1/4" outputs, which are highlighted as a significant advantage over competitors like the Presonus StudioLive AR series.

    Source

Other

  • The K-Mix has been used in professional film settings, indicating its utility in small, portable setups despite mixed reliability reports.

    Source

Build quality

  • The K-Mix is noted for its robust build and durability, with users highlighting it as nearly indestructible, similar to other Keith McMillen Instruments products.

    Source

Use cases and applications

  • Users appreciate the K-Mix for its compact size, likening it to an iPad, which makes it ideal for personal studio and live performance use.

    Source

4.0 out of 5

Based on 0 Reviews and 4 Ratings

5 star
4 star
3 star
2 star
1 star

Artist usage

Add artist
See how Shigeto uses Keith McMillen Instruments K-Mix

Shigeto

Music Producer

...
Verified via Facebook

can be seen in this post from February 21, 2018

See how clipping. uses Keith McMillen Instruments K-Mix

clipping.

Rapper, Music Producer

...
Verified via Keith McMillen Instruments

Snipes and Hutson discuss their use of the K-Mix in this article from the Keith McMillen website: "What I love is how incredibly versatile it is. Occasionally we show up in a new environment and we’re like “Oh, we need to submix this that we don’t usually need to submix” and it’s like “Oh cool, I’ll just do that in a new layer and I’ll just spit you out this” and it’s like “Done!” And it’s so fast and so easy to do stuff like that. And it sounds really good. And it’s indestructible. So those are all really important things for the road."

See how Trey Gunn uses Keith McMillen Instruments K-Mix

Trey Gunn

Guitarist, Bassist

King Crimson

...
Verified via Keith McMillen Instruments

Trey Gunn is listed on Keith McMillen Artists page. He is quoted for using the 12 Step, Soft Step and K-Mix.

See how Jordan Perlson uses Keith McMillen Instruments K-Mix

Jordan Perlson

Drummer

Becca Stevens Band

...
Verified via Photo

Featured in this March 5, 2019 Instagram post.

The @keithmcmilleninstruments #boppad and #kmix sure make life easy. I generally hate dealing with anything electronic related but goddamn if this stuff feels amazing, looks cool, sounds great and couldn’t be easier to plug/play. Thanks @zonana_music for the K Mix. #adrianbelewtour #tour #drums #drummer

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Keith McMillen Instruments K-Mix, it is most commonly used with the following gear.

Community setups

Show yours
pianoelektro

pianoelektro

Gear IQ 82

More Keith McMillen Instruments Mixers

Behringer Xenyx 802 Mixer

$28.00 - $415.00

# 1

Rank

Machine Girl Unknown Mortal Orchestra Dylan Walker
13 artists using
Behringer X32 Rack

$677.00 - $989.00

# 2

Rank

Rabea Massaad Dean Lamb Justin Deblieck
15 artists using
Yamaha MG10XU

$212.91 - $294.99

# 4

Rank

Tyler Larson Kazumoto Endo Shota Izawa
4 artists using
Yamaha MG12 XU

$337.72 - $429.99

# 6

Rank

Kevin Parker Underworld Richard Devine
5 artists using
Mackie 1202VLZ4

$222.00 - $329.99

# 7

Rank

Paul McCartney Ryuichi Sakamoto Ela Minus
4 artists using
Behringer Xenyx 502

$45.30 - $89.00

# 8

Rank

Steve Hillage Samus Paulicelli Krzysztof Drabikowski
5 artists using
Mackie 802-VLZ4

$180.25 - $219.99

# 9

Rank

Grimes Alexander 23 kid606
5 artists using
YAMAHA MG 16XU

$200.00 - $674.99

# 10

Rank

St. Vincent Positive Mental Trip The Toxic Avenger
5 artists using
Behringer XENYX 1204USB mixer

$129.00 - $209.00

# 11

Rank

Mauro Remiddi Larry Gus DJ FABI
3 artists using
Mackie Mix8

$95.00 - $99.99

# 13

Rank

Evgeniy Gorbunov Alex Melton Astro (Hiroshi Hasegawa)
4 artists using
Mackie MicroSeries 1202-VLZ

$75.00 - $329.99

# 14

Rank

Richie Castellano lifelike Chief Xcel
3 artists using
Behringer Xenyx X1222USB

$189.00 - $309.00

# 15

Rank

Lil Ugly Mane Jeff Ellis Joe Rogan
4 artists using
Yamaha MG06X

$139.49 - $175.00

# 16

Rank

Kevin Parker Clem Burke Yusuke (Lynch)
4 artists using
Behringer Eurorack Pro RX1602

$65.00 - $219.50

# 17

Rank

Yuki Kajiura Danny Federici
2 artists using
Soundcraft EPM6

$279.00 - $382.00

# 19

Rank

Toro y Moi goreshit Daniel Hayhurst
4 artists using
Allen & Heath ZED-10

$244.00 - $399.99

# 20

Rank

Emika STATIK SKY NL Tom Alexander Schmitt
5 artists using
Mackie 1604VLZ4 Mixer

$849.99 - $1,049.99

# 21

Rank

Tim Hecker Ulrich Schnauss Sidney "Senator Predator" Mills
4 artists using
Behringer Xenyx 1202fx

$35.00 - $295.00

# 22

Rank

Danny Serrano
1 artist using
Yamaha MG10

$181.00 - $219.99

# 23

Rank

VOIA Ben Minal
2 artists using
Behringer XENYX X2222 USB Mixer

$205.00 - $329.00

# 24

Rank

Samus Paulicelli pauldrums
2 artists using
Soundcraft Signature 22MTK

$550.00 - $1,271.95

# 25

Rank

Kassian Franz Alice Stern
2 artists using
Alesis MultiMix 8 USB FX

$99.00 - $179.00

# 26

Rank

Holly Drummond Mario Siperman Yegua
3 artists using
PreSonus StudioLive 32 Series III

$1,900.00 - $2,999.99

# 27

Rank

Deadmau5 Chester Thompson Ellis K.
3 artists using
Solid State Logic Six

$1,006.00 - $1,499.99

# 28

Rank

Wes Borland Richard Devine Espen Kraft
4 artists using
Behringer Micromix MX 400

$14.70 - $45.00

# 29

Rank

Owain AMULETS
2 artists using
PreSonus StudioLive 16.0.2

$666.00 - $1,159.99

# 30

Rank

Leo Moracchioli Troy Wright Dj Guv
3 artists using
Allen & Heath Zed-14

$416.00 - $679.99

# 34

Rank

Merzbow
1 artist using
Behringer X32 Compact Digital Mixer

$1,049.00 - $1,649.00

# 35

Rank

James Petralli DFEX
2 artists using
Mackie CR-1604

$200.00

# 36

Rank

Elliott Smith Daft Punk Brian Eno
21 artists using
Yamaha MG06

$115.00 - $148.99

# 37

Rank

Issei Noro The Rita ChakiP
3 artists using
Mackie 1402VLZ4

$368.00 - $449.99

# 39

Rank

Alva Noto Ela Minus
2 artists using
Allen & Heath Zed 12-FX

$539.00 - $799.99

# 40

Rank

Merzbow
1 artist using

Similar

Gear Guides

  • Added to Equipboard on by

    apoth
    apoth

    Gear IQ 74