Behringer MicroMIX MX400 4-Channel Line Mixer

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Get level control on up to 4 channels with the Behringer MicroMIX! It's perfect as a mono sub-mixer for adding even more inputs to your main mixer.

The Behringer MicroMIX MX400 is a 4-channel mono line mixer that's as durable as it is affordable. Its pocket-sized form factor and lightweight design mean it's easy to transport, making it a useful tool for anyone packing multiple monaural instruments, or any band or venue that's already tapped the full potential of their mixing board. So whether you're a multi-instrumentalist, or you're part of a traveling vocal quartet in need of a downmixing solution, the MicroMIX MX400 is one compact mixer that won't weigh you down or break the bank.

Consolidate Your Mix

The MicroMIX MX400 is the ideal sub-mixer for consolidating multiple sources to a single output when your main mixing board is running low on available channels. It's highly affordable and extremely compact, making it perfect for anyone with a rack of instruments who doesn't want to have to carry a full 32-channel mixing board from gig to gig.

Ultra Low-Noise

More than just a micro-sized line mixer, the MicroMIX MX400 is effectively a four-channel preamp. Equipped with an ultra low-noise amplification circuit powered by dual 4580 operational amplifiers. These high-gain, low-noise op amps can provide over 100 decibels of amplification with a typical distortion of less than 0.001% across the entire range of output frequencies. That means you'll get lots of sound with little noise when you condense up to four monaural signals down to one using the MX400.


- Compact four-channel-in, read more one-channel-out low-noise monaural analog line mixer
- Ideal for submixing a multi-instrument setup or quartet down to one output channel
- Independent volume control knobs for each channel
- Four 1/4-inch monaural inputs
- One 1/4-inch monaural output
- Powered by included AC power supply
- Green LED power indicator
- Internal 4580 operational amplifiers offer over 100 dB voltage gain at approximately 0.0005% distortion
- Pocket-sized: unit is 4.06 by 2.25 by 1.83 inches
- Unit weights 0.81 pounds
- Features a durable metal chassis
- Covered by Behringer's 3-year warranty program
- Designed and engineered in Germany
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For support or warranty questions, please contact the manufacturer:

Behringer MX400 4-Channel Line Mixer

Despite its compact size, this 4-channel line mixer is big on features! It yields the highest sonic quality at all output levels, boasting low-noise 4580 operational amplifiers for outstanding audio performance'the same op amps found in its much bigger brethren. Expanding on the capabilities of standard-size mixers is where the MX400 does extremely well, for example as a sub-mixer. If you are running short on available channels on your "big" mixer and need to bring the output of three different keyboards into your mix, you can simply connect them to the MX400, work out the keyboard mix, and connect the MX400's output to a single input on your main mixer.

It will catch your eye because it's cute as a button, but you'll want to own one because of what it can do for your performance. Plus they include a power supply.

Reviewers gave this product an overall rating of 5 out of 5 stars. (15 ratings)
Submitted March 26, 2009 by a customer from

"The Embodiment of the American Dream"

Overall: 5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
Reliable, consistent functionality for cheap. Isn't that what business competition is all about? It might not have built-in EQ or effects or all those, but I do that on our band's PC, so all I needed was something to mix the drums right without having to record 4 separate tracks. If all you need is something small to say, bring a singer's voice over a screamer's, and into only one PA Amp, this would work. $30 is pretty much a bargain for this, I've seen 2-channel mixers over 5x the price, and they're bulkier too. So if you just need a simple mixing solution, this is the way to go.

For the price (and size), this little contraption has god-like sound quality.

It's a 4-channel mixer. If you've looked at the pictures, its pretty basic. 4 inputs, 4 volumes, 1 output.

Ease of Use
Plug and much easier does it get?

Extremely sturdy casing, REAL METAL, not that BS plastic crap. As stated in another review, the knobs would be the first to go, but I opened it up and looked at the circuitboard...they're pretty well anchored in there.

I have a USB interface for recording, and I bought this for drum mics, and it really does what I bought it for. Once you get up above 5 channels, the prices skyrocket with added features that I'd never need (thanks to Adobe Audition), so this is precisely what I looked read more for.

Manufacturer Support
Our bassist has a Behringer Bass Amp, and that thing (literally) rattles the house we play in. Behringer is one of the few companies that make legitimately quality products for the right price. Good Job Behringer!

The Wow Factor
Rugged, streamline, simple. It's not as big as it looks. its about the size of 2 cell phones stacked on top of each other, so people who like compact devices, get one. Oh, and...this thing is SEXAAAY!

Musical Background:
Active Musician, Small Scale Recording Engineer

Musical Style:
Metal, Hardcore, Thrash, Death Metal, and some Techno
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56 of 58 people (97%) people found this review helpful. Did you?
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