Behringer MICROMIX MX400 Ultra Low-Noise 4-Channel Line Mixer

The Behringer MICROMIX MX400 is a compact four-channel line mixer designed for studio, live and broadcast applications where a clean, reliable signal-summing solution is needed. Built around ultra-low-noise analogue circuitry, it suits audio professionals, home studio users and broadcasters who need to combine multiple line-level sources into a single output without introducing unwanted colouration or interference. Its robust steel chassis keeps the footprint minimal, making it easy to integrate into any existing setup.

The MX400 features four mono line inputs, each with its own individual level control, feeding into a single master output. The 1/4" balanced output is compatible with mixers, audio interfaces and amplifier inputs. Power is supplied via an included DC adaptor, operating silently with no fan noise or mains hum. The steel construction provides durability without adding unnecessary bulk.

In practice, the MX400 handles a wide range of summing tasks — combining headphone monitor feeds, merging multiple drum machines into a single interface channel, or blending a talk microphone with background music for streaming. Its no-frills layout keeps operation straightforward, and the balanced output helps maintain signal integrity over longer cable runs. The included power supply means it is ready to use straight out of the box without any additional purchases required.