MOZOS HA400 4-Channel Stereo Headphone Amplifier

The MOZOS HA400 is a professional 4-channel stereo headphone amplifier designed for studio, stage, home recording, and monitoring applications. Featuring ultra low-noise 4580 op-amps and individual volume control per channel, it delivers pristine audio quality with minimal distortion. The rugged metal chassis ensures durability in demanding environments.

Advantages

With four independent stereo outputs, the HA400 allows multiple musicians or engineers to monitor the same source with personalized volume levels. The high signal-to-noise ratio (>98 dB) and low THD+N (<0.008%) guarantee clean, transparent sound reproduction. Its compact desktop form factor saves space while providing professional-grade performance.

Suitable for

• Studio monitoring and headphone mixing
• Live sound stage monitoring
• Home recording setups
• Multi-user listening environments

Key specifications

• Number of Channels: 4 (Stereo)
• Input: 1x 6.3mm (1/4") TRS Stereo (unbalanced)
• Outputs: 4x 6.3mm (1/4") TRS Stereo
• Input Impedance: 100 kΩ
• Output Impedance: 80 Ω per channel
• Frequency Response: 20 Hz - 20 kHz
• Signal-to-Noise Ratio: >98 dB
• THD+N: <0.008%
• Maximum Gain: +20 dB
• Power Supply: DC 12V, 150mA (external adapter included)
• Controls: Individual Volume Control per Channel
• Operational Amplifiers: Ultra low-noise 4580 op-amps
• Chassis Material: Metal
• Indicators: Power LED

Recommendations

For optimal performance, use high-quality 6.3mm TRS cables and headphones with impedance between 16-600 Ω. The HA400 is an excellent choice for expanding headphone monitoring capabilities in any audio setup.