With the Mackie HM-4 you always have enough headphone outputs at your disposal. This headphone amplifier converts 1 stereo signal to 4 headphone signals. As a result, you provide 4 people with headphones during recording. That way, the singers and musicians hear immediately how their singing or playing sounds. Each headphone channel has an individual volume control. This means that the singers and musicians themselves determine the ideal volume level. Due to its compact size, the headphone amplifier takes up little space. This way you keep your desk free to work on and the feng shui of your studio remains intact.