HA4000 Four-Channel Headphone Amplifier accepts one stereo input and makes the audio available to four separate stereo headphone outputs, each with its own volume control. Up to four people can listen simultaneously to a single audio source and independently adjust their headphone volume. The amp is compact yet powerful and delivers high-quality sound with low noise throughout the full volume spectrum.

Features:

Enables four people to listen simultaneously to a single audio source over headphones
Each listener can independently adjust their headphone volume
Allows the listeners to hear the mix during recording or broadcast