THD (Total Harmonic Distortion)
< 0.005%
Professional audio, microphones and system integration

The Harmonai X4/X6 series is a professional-grade 2U Class D digital power amplifier, leveraging high-efficiency Class D amplification technology to deliver outstanding audio performance and superior thermal management within a standard 2U rack-mount form factor. Featuring an ultra-high signal-to-noise ratio of 112dB (A-weighted), extremely low distortion of less than 0.005%, and accurate wide-band frequency response, it supplies pure, powerful amplification for professional audio engineering, live stage reinforcement, conference systems, and fixed installations.
< 0.005%
112dB (A-weighted)
20Hz – 20kHz ±0.25dB
> 1000
50V/μs
30kΩ balanced input
0.775V
< 5mV
210V – 240V ±10%, 50Hz
Ideal for professional stage sound reinforcement, conference halls and multi-purpose auditorium audio systems, bar and Livehouse live sound, and fixed-installation background music. The Class D architecture ensures quiet, cool operation during extended use, and the standard 2U size fits seamlessly into all professional rack cabinets.
For detailed technical specifications and model selection guidance for the Harmonai X4/X6 series amplifiers, contact our professional support team.