Link Audio HA400 Ultra Compact 4-Channel Stereo Headphone Amplifier

Link Audio HA400 Ultra Compact 4-Channel Stereo Headphone Amplifier

This 4-channel headphone amplifier provides a simple, effective way to share monitoring across multiple listeners. With standard 1/4″ TRS stereo connectors, it integrates seamlessly with mixers and audio interfaces. Each output delivers up to 40 mW into a 100-ohm load, with an output impedance of around 80 ohms—ideal for typical studio headphones.

• 4 independent headphone outputs
• 1/4″ TRS stereo connectors (inputs/outputs)
• Max input level: +15 dBu
• Max output power: 40 mW into 100 Ω
• Headphone output impedance: ≈ 80 Ω
• Built for studios, classrooms, rehearsals, and podcast setups