HA-420 is a compact 4-CHANNEL STEREO HEADPHONE AMPLIFIER, each channel with separate volume control knob. Everyone in the studio wants to have a more flexible headphone amplifier, and sometimes output the stereo signal evenly distributing the mixer to multiple headphones, HA-420 can be the best solution to these problems, it is the ideal headphone listening companion.

• 4-channel headphone amplifier Input connector: 1/4” Input impedance: 1000KΩ Maximum output level: +22dB Output connector: 6.35mm stereo Output impedance: 10Ω minimum each channel Maximum gain: 20dB each channel Signal/Noise Ratio: >98dB Source: DC 12-18V