Behringer HA-400 Ultra Compact 4-Channel Stereo Headphone Amplifier

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About Behringer HA-400

The Behringer HA-400 Ultra Compact Headphone Amplifier 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.

Behringer HA-400 Features

  • Ultra Compact 4-channel headphone amplifier with individual channel level controls
  • 4 separate low-noise 4580 op-amps(operational amplifiers) for efficient, maximized output levels per channel
  • Power On LED
  • DC 12V adapter included

Behringer HA-400 Specifications

Number of Channels
Input Connections
1 x 1/4" TRS Phone
Output Connectors
4 x 1/4" TRS Phone
Maximum Output Level
Approx. 40 mW into 100 Ohms
Function Controls
4 x Level Knobs
Frequency Response
20 Hz - 20 kHz
Miniature 4-Channel Headphone Amplifier
Individual Channel Level Controls
Power Supply
DC 12V adapter included
4.10x2.25x1.80" (10.41x5.71x4.57cm)
6.7oz (189.94g)

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Questions about this item:

Charles C  can this amp be used with headphone out put from a normal stereo amp?
BRYAN D  I don't see why not, although I would think you'd have to keep the output from the stereo REALLY low to avoid blowing it out. I use four of these things in my video work, taking the audio from a video camera's headphone monitoring jack and running it to several sets of headphones. A camera's audio output isn't very high to begin with, so I haven't worried about the level going into this little amp. So I would be very cautious about using a big stereo amp -- start real low and go slow! Good luck.
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