Microphone Element
Back-electret condenser
Professional audio, microphones and system integration

The Harmonai CM-505 is a high-quality capacitor microphone set designed for professional conference and speech applications. The set includes five back-electret condenser cardioid microphones, paired with elegant H-230 bronze bases, delivering both professional performance and refined aesthetics. Its cardioid pickup pattern precisely focuses on the speaker’s voice, and its wide frequency response of 40Hz–16kHz ensures clear, natural vocal reproduction. The full set includes S-30 professional windshields and a portable protective case—ideal for meeting rooms, auditoriums, training classrooms, and concert halls.
Back-electret condenser
Cardioid
40Hz–16kHz
-36dB±3dB (0dB = 1V/Pa at 1kHz)
500Ω±20% (at 1kHz)
130dB (T.H.D ≤1% at 1kHz)
70dB (1kHz at 1Pa)
48V DC, 2mA phantom power
173g per microphone
Φ37×220mm
XLRM 3-pin male connector
CML-400 microphones ×5, H-230 bronze base ×1, S-30 windshields ×2, carrying protective case ×1
The CM-505 is engineered for environments requiring multi-speaker operation and clear voice capture. Whether used in round-table meetings, academic lectures, courtroom proceedings, government briefing rooms, or corporate training classrooms, the 5-microphone configuration offers flexible coverage for diverse room layouts. The bronze base adds a professional, dignified presence to any tabletop setup; the cardioid polar pattern effectively suppresses off-axis and rear noise, ensuring clean vocal delivery to the sound reinforcement system. With standard 48V phantom power and XLRM connectors, it’s plug-and-play compatible with mixing consoles, audio processors, and conferencing systems.
For detailed technical specifications or bulk procurement quotes for the CM-505, please contact the Harmonai Professional Team—we’ll deliver customized conference audio solutions tailored to your needs.