Behringer MICROAMP HA400

A Mini Format Designed for the Real Needs of the Studio

The HA400 belongs to that category of discreet yet quickly indispensable tools whenever a headphone signal needs to be shared in good conditions. Where a single headphone output soon reaches its limits, this compact distribution amplifier provides a direct, reliable and space-saving solution.

Its value is clear: it centralizes a stereo monitoring signal and distributes it to several headphones without complicating the studio wiring. In a recording, podcasting, streaming or silent rehearsal environment, it meets a very practical need with immediate setup.

What Are the Most Relevant Uses for the HA400?

The HA400 is primarily intended for musicians, beatmakers, sound engineers and content creators who need to provide a headphone feed to several people without investing in a complex headphone monitoring system. It naturally fits into a home studio, on a music production desk or in a compact control room.

During a recording session, for example, it can send the same headphone mix to four performers, with each person able to adjust their own level without affecting anyone else's monitoring. This is particularly useful for vocal tracking, acoustic recording, rehearsals with a click track or collaborative sessions where listening comfort directly influences performance quality.

Its compact size also makes it highly useful in mobile situations. It easily fits into a bag alongside an audio interface, a laptop and a few cables, making it a practical companion for lightweight recording sessions, podcasts with multiple participants or mobile production setups.

Simple, Effective and Immediately Operational Headphone Distribution

Four Outputs for Sharing the Same Monitoring Signal

The HA400 receives a stereo signal via its 1/4" TRS line input, then distributes it to four headphone outputs. This architecture allows several users to be powered simultaneously from a single source, without having to multiply adapters or improvise an unreliable wiring setup.

For a project studio, this is a practical answer to a common problem: how to let several people listen to the same session without sacrificing convenience. The HA400 fulfills this role precisely with a deliberately simple, hands-on approach.

Independent Volume Control for Each Channel

Each output has its own volume control. This makes a real difference in use: one singer may request a higher listening level, while another musician may prefer a more moderate headphone feed. Everyone can adjust their own comfort without disturbing the overall balance of the session.

This independent level control also makes the workflow smoother. It limits interruptions, reduces requests for adjustments in the control room and improves efficiency during recording. In a small studio, this kind of detail often makes a genuine difference every day.

A Compact Format That Optimizes Workspace

With its reduced dimensions, the HA400 easily fits into spaces where every inch counts. Placed next to an audio interface, a monitoring controller or a master keyboard, it performs its function without cluttering the workspace.

Its compactness does not prevent it from being designed for practical studio use. It works equally well as the main headphone distributor in a small setup or as a temporary expansion when an additional musician or participant joins the session.

Compatibility and Immediate Setup

Designed to work with virtually all types of headphones, the HA400 is versatile in a mixed headphone collection. The outputs rated at 80 ohms are well suited to common uses in personal studios, rehearsals or multimedia production.

The supplied 12 V DC power supply allows for quick installation straight out of the box. Connect the source, the headphones and the power supply, and the system is ready to go. For anyone looking for a simple, compact and effective stereo headphone amplifier, the HA400 goes straight to the essentials.

Technical specifications

Number of channels	4	Color	Black
Rackable	No

Specified impedance

80 ohms

Dimensions

46.5 x 103.6 x 57.2 mm