Behringer Micromix MX 400

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$14.80 to $45.00 Price Tier: Budget

4.0 (18)

4 Reviews

Find out who is using Behringer Micromix MX 400

7 community setups

2 wishlisted

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Page last updated Jun 10, 2026

Pricing and availability

We compare 600+ stores and found this item at 8 stores. Prices updated June 9, 2026.

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4.5 (35)

$22.90

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4.5 (22)

$22.90

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4.2 (2570)

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4.0 (9)

$19.90 3 available New

$34.00 1 available Used

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5.0 (43)

$22.90

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4.5 (2)

$22.90

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4.3 (650)

$14.90 $14.80 $0.10 · All time low

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£16.50

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Average Price: $26

Budget/Beginner

$200

$1001+

Price Tier

In the Mixers category, Behringer Micromix MX 400 is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

Budget

Standard

High-end

Price History

Based on price data from 6 merchants for "Behringer Micromix MX 400". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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When simplicity meets functionality, the Behringer Micromix MX400 is the mixer that delivers. This ultracompact 4-channel line mixer is a powerhouse in a portable package, perfect for both studio and live setups. With its ultra low-noise 4580 operational amplifiers, it promises crystal-clear audio quality usually reserved for much larger mixers. Whether you're a keyboard enthusiast needing to sub-mix multiple instruments or a studio engineer looking for an efficient way to combine audio sources, the Micromix MX400 is your ideal companion.

Balancing your sound is a breeze with dedicated input level knobs for each channel, allowing for precise control over your mix. Its rugged metal casing ensures durability, making it a reliable choice for gigs on the go. The Micromix MX400's 1/4" TS inputs and output make integrating it into your existing setup seamless. Plus, the included 12V power adapter means you're ready to mix right out of the box.

With its minimalist design and impressive performance, the Micromix MX400 is the perfect solution for musicians and sound engineers who need professional-grade mixing in a compact format. Experience the difference in your audio quality with the Micromix MX400—where versatility, portability, and performance converge.

Key Features:

Ultracompact 4-channel line mixer
Low-noise 4580 operational amplifiers for clear audio
Dedicated input level controls for each channel
4x 1/4" TS inputs and 1x 1/4" TS output
Durable metal casing for road-ready reliability
Includes a 12V power adapter for easy setup

Owner's manual

Behringer Micromix MX 400 User Manual

Product specs

Type	Analog
Channels	4
Inputs - Line	4 x 1/4"
Outputs - Main	1 x 1/4"
Height	1.83"
Width	2.25"
Depth	4.06"
Weight	0.81 lbs.

FAQs

How many channels does the Behringer Micromix MX400 line mixer have?: The Behringer Micromix MX400 features four channels, allowing you to mix up to four different audio sources simultaneously.
What type of inputs does the Behringer MX400 support?: The Behringer MX400 supports 4 x 1/4" line inputs, making it compatible with a variety of audio sources like keyboards, drum machines, and more.
What is the main output connection on the Behringer Micromix MX400?: The main output on the Behringer Micromix MX400 is a single 1/4" jack, which can be used to connect the mixer to amplifiers, powered speakers, or recording devices.
Is the Behringer Micromix MX400 suitable for live performances?: The Behringer Micromix MX400 is more suited for studio or small-scale setups due to its compact size and basic mixing capabilities, rather than live performances requiring more extensive mixing features.
Can the Behringer Micromix MX400 be used with both mono and stereo signals?: The Behringer Micromix MX400 is designed for mono signals. For stereo applications, you would need to use two channels for left and right signals.

Videos

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Reviews

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PROS

Affordable and offers good value for money
Compact and portable, ideal for small setups or on-the-go use
Includes power adapter, unlike some competitors
Low noise at moderate volumes, clean mixing capabilities
Sturdy build quality with a metal chassis
Allows for multiple instruments to connect to limited inputs
Simple operation with individual volume controls for each input
Can function as a passive mixer without power
Suitable for home practice and small jam sessions

CONS

Mono output only, limiting stereo applications
No on/off switch; must unplug to power down
Lacks panning options for more detailed sound placement
High volume settings introduce noise
Limited frequency response, with muted highs and rolled off lows

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Behringer Micromix MX 400.

Use cases and applications

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Frequently used for summing multiple instruments to a single channel, especially in venues with limited mixing boards.
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Works well for small setups, such as coffee table jams with Korg Volcas.
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Users successfully run the MX400 on a rechargeable Joyo Power Supply 5, enabling off-grid use for busking and outdoor performances.
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Features and functionality

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All outputs are mono, requiring adapters for stereo use with headphones.
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The Micromix MX400 requires a 12v center-positive power supply, which differs from the common center-negative in most pedals, necessitating specific adapters for integration.
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Mono-stereo adapters can redirect output to both ears, though it centers audio, losing the stereo field of instruments like the Roland TD17 drumkit.
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Build quality

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The knobs and housing are noted for their high-quality feel despite the low price.
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User experience

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Survived extensive touring conditions, performing consistently over several years and around 80 shows annually.
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Though the MX400 demands 150mA, it has been operated with a 12v 100mA supply without issues, showcasing flexibility in power requirements.
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Mods and upgrades

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The TrueTone "1 Spot L6 Converter" is recommended for converting center-negative to center-positive while fitting the MX400's unique plug size, integrating it into pedalboard setups.
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Setup and maintenance

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For power supply integration, users often need a 2.1mm to 2.5mm adapter, highlighting a common challenge in connecting the Micromix to conventional pedal power supplies.
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Comparisons

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Users compare the MX400 to the Donner DEL-8i2, which offers a true stereo output and more responsive input level knobs for each channel.
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The Moukey MX4 is noted for a poor power connection, while the ammoon micromix has ineffective knobs, contrasting with the MX400's reliable build.
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