Behringer MicroAMP HA400 4-channel Headphone Amplifier (HA400d1)

Amazon.comIf youre 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.A Simple SolutionGrab this super-compact amp during your sessions to power practically any headphones--four of them at the same time to be exact. This allows four people in your studio to listen to the main mix while recording and each listener can determine their own volume level using the dedicated output level controls.Quality AmplificationThe HA400 contains 4 high-power stereo amplifiers that maintain the highest sonic quality even at maximum volume levels. These ultra-low-noise 4580 operational amplifiers are included for outstanding audio performance--the same op amps found in "full-size" audio equipment.Whats in the BoxBehringer HA400 4-Channel Stereo Headphone Amp Power Adapter Users ManualProduct DescriptionUltra-compact 4-channel stereo headphone amplifier.