Behringer MicroAMP HA-400 Headphone Amplifier


( 6 reviews )
  • 4-channel stereo headphone amplifier for use with all types of headphones.
  • Four high-power stereo amplifiers.
  • Highest sonic quality even at maximum volume.
  • Output level control for each channel.
  • Ultra low-noise 4580 operational amplifiers for outstanding audio performance.
  • DC 12-Volt adapter included.
  • High-quality components and exceptionally rugged construction ensure long life.


Behringer MICROAMP HA400

is a very inexpensive, miniature 4-channel headphone amplifier. for stage or project studio use. The unit is equipped with separate operational amplifiers for each channel, and individual channel level controls.

If you’re tracking more than one musician at a time, or if everyone in the group wants to listen to the playback, you’re need a monitor distribution system. A distribution system allows everyone to listen in, and control the volume of his or her own headphones. The compact and flexible HA400 can power up to 4 pairs of headphones and up to 4 independent volumes, with outstanding audio quality – even at maximum volume!

Altogether Now

You can use this super-compact stereo headphone amplifier with practically any headphones – four of them at the same time, to be exact! Let up to 4 different people in your studio listen to the main mix while recording, and each listener can determine their own preferred volume level using the dedicated output level controls. The HA400 contains 4 high-power stereo amplifiers that maintain the highest sonic quality even at maximum volume levels. Ultra low-noise 4580 operational amplifiers are employed for outstanding audio performance – these are the same op amps found in “full-size” audio equipment – plus, a dedicated 12-Volt DC adapter is included.

Great Sound, Great Value

When a recording session calls for everyone’s heads – and ears to be in the game, the HA400 is the perfect solution – and a real money-saver! Let your ears guide you by checking out the amazing HA400 at a BEHRINGER dealer near you – or get yours online today.

What's in the box

  • Behringer MicroAMP HA-400 – Headphone Amplifier
  • 12V DC AC Adapter

Number of Channels4
Input Connections1 x 1/4" TRS Phone
Output Connectors4 x 1/4" TRS Phone
Maximum Output Levelapprox. 40 mW into 100 Ohms
Function Controls4 x Level Knobs
Frequency Response20 Hz - 20 kHz
THD + NNot Specified by Manufacturer
NoiseNot Specified by Manufacturer
Power SupplyDC 12V adapter included
Dimensions4.1 x 2.25 x 1.8" (103.6 x 57.2 x 46.5mm)
Weight(6.7 oz) (190 g)
SpecialtiesMiniature 4-Channel Headphone Amplifier Individual Channel Level Controls
Package Weight0.73 lb
Box Dimensions (LxWxH)7.45 x 5 x 2.5"

6 reviews for Behringer MicroAMP HA-400 Headphone Amplifier

5.0 Average Rating Rated ( 6 Reviews )

  1. Jeffrey S.

    I am using this headphone amplifier as a distribution amplifier to route audio to a couple of devices and it is working great. I like the fact that each output has its own audio adjustment.

  2. William Desmond

    This is the second one of these I have bought (the first was given to a needy friend), and I am still amazed that you get such a great little unit for this price. No noticeable hiss, smooth volume controls, dead simple operation, and plenty of volume driving all four outputs. I received the newer black version which I actually prefer. The HA400 is probably the best value I have ever found in an electronic device.

  3. Manny Rufai

    This is a great solution for 2 or more headphones – like in a podcasting or interview situation. Individual volume controls mean everyone gets to adjust to what they are comfortable with. All Inputs and Outputs are stereo 1/4 inch TRS, so if you need 1/8 inch (3.5 mm) TRS, then make sure to get an adapter. small, light weight – overall excellent

  4. Tony Ebumelu

    i like it, it works fine,,but NO switch for ON or OFF ! You have to plug in & out the cable !!! its nothing againist the item.but its a solid unit & works great.

  5. TImothy Busayo

    Im happy with amp and I like it in the color black better than the older white model. Great piece of equipment

  6. Derrick Femi A.

    We needed separate volume controls for the headphones my wife and I wear during our podcasts. She needs hers hotter than I like, especially because the volume she prefers really aggravates my tinnitus (too many years as a Top 40 disc jockey). The Behringer HA-400 is inexpensive, sounds clean (better than our former solution, which was a splitter plugged into our mixer’s headphone jack), and gives us exactly what we need at a very reasonable price. Highly recommended.

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