Ultra-Compact 4-Channel Stereo Headphone Amplifier

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
Conceived and designed by BEHRINGER Germany

If you're tracking more than one musician at once, or if everyone in a group wants to listen to a playback, you need a monitor distribution system. The compact, flexible HA400 can power up to four pairs of headphones and up to four independent volumes.