Harmonai CM-504S Professional Speech Microphone — Dual-Package Back-Electret Condenser Mic Set for Clear Conference & Broadcast Audio

The Harmonai CM-504S is a professional speech microphone featuring a back-electret condenser capsule, cardioid polar pattern, 40Hz–16kHz frequency response, and 70dB SNR. The dual-...

$328.82

Model: To be confirmed
Category: Microphones
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Status: ready

Product Brief

Harmonai CM-504S Professional Speech Microphone — Dual-Package Back-Electret Condenser Mic Set for Clear Conference & Broadcast Audio

Overview

The Harmonai CM-504S is a professional speech microphone featuring a back-electret condenser capsule, cardioid polar pattern, 40Hz–16kHz frequency response, and 70dB SNR. The dual-...

Price: $328.82
Model: -
Category: Microphones

Specifications

Parameter	Value
Capsule	Back-electret condenser
Polar Pattern	Cardioid
Frequency Response	40Hz — 16kHz
Sensitivity	-36dB ± 3dB (1dB = 1V/Pa at 1kHz)
Output Impedance	500Ω ± 20% (at 1kHz)
Maximum SPL	130dB (T.H.D ≤ 1% at 1kHz)
Signal-to-Noise Ratio	70dB (1kHz at 1Pa)
Power Supply	48V DC, 2mA
Weight	173g
Body Dimensions	Φ37 × 220mm
Output Connector	XLRM 3-pin male XLR
Package Contents	CML-400 microphones × 2, H-230 intercom copper-tone base × 1, S-30 professional windshields × 2, protective carry case × 1

Service Support

We support project consultation, model recommendation, bulk purchasing and catalog delivery for retail, multipurpose halls, conference rooms and live events.

Business hours: Monday to Friday 09:00 - 18:30
Inquiry channels: phone / email / website form
Tip: share budget, quantity and use scenario in advance

Product Overview

The Harmonai CM-504S is a professional-grade speech microphone, built with a back-electret condenser capsule and a cardioid pickup pattern that precisely focuses on the sound source while effectively suppressing ambient noise. Its frequency response spans 40Hz–16kHz, and its signal-to-noise ratio reaches 70dB, ensuring clear, natural vocal reproduction. Supplied as a dual-pack, it includes professional windshields, interconnect cables, and a protective carry case — plug-and-play ready for meetings, broadcasting, and lecture recording.

Capsule Type

Back-electret condenser

Polar Pattern

Cardioid

Frequency Response

40Hz — 16kHz

Sensitivity

-36dB ± 3dB (1dB = 1V/Pa at 1kHz)

Output Impedance

500Ω ± 20% (at 1kHz)

Maximum SPL

130dB (T.H.D ≤ 1% at 1kHz)

Signal-to-Noise Ratio

70dB (1kHz at 1Pa)

Power Supply

48V DC, 2mA

Weight

173g

Body Dimensions

Φ37 × 220mm

Output Connector

XLRM 3-pin male XLR

Package Contents

CML-400 microphones × 2, H-230 intercom copper-tone base × 1, S-30 professional windshields × 2, protective carry case × 1

Recommended Applications

The CM-504S dual speech microphone set is ideal for conference speaking, academic presentations, broadcast voice-over, classroom recording, and podcast interviews. Its cardioid pattern isolates ambient noise, and combined with 48V phantom power and an XLRM 3-pin male XLR output, it connects directly to professional mixers, audio interfaces, or recording devices — enabling fast, high-fidelity audio setup.

Explore more Harmonai professional audio products, or contact our consultants for customized solutions.