Harmonai CM-504 Professional Speech Microphone image 1

Harmonai CM-504 Professional Speech Microphone — High-Fidelity Audio for Meetings and Presentations

The Harmonai CM-504 is a premium desktop speech microphone engineered for professional speaking, conferences, and lectures. Featuring a back-electret condenser capsule and cardioid...

$290.59

Model: To be confirmed
Category: Microphones
Images: 4 images
Status: ready

Product Brief

Harmonai CM-504 Professional Speech Microphone — High-Fidelity Audio for Meetings and Presentations

Overview

The Harmonai CM-504 is a premium desktop speech microphone engineered for professional speaking, conferences, and lectures. Featuring a back-electret condenser capsule and cardioid...

Price: $290.59
Model: -
Category: Microphones

Specifications

Parameter	Value
Capsule Type	Back-electret condenser
Polar Pattern	Cardioid
Frequency Response	40Hz—16kHz
Sensitivity	-36dB±3dB (0dB=1V/Pa at 1kHz)
Output Impedance	500Ω±20% (at 1kHz)
Maximum Sound Pressure Level	130dB (T.H.D≤1% at 1kHz)
Signal-to-Noise Ratio	70dB (1kHz at 1Pa)
Power Supply	48V DC, 2mA (phantom power)
Output Connector	XLRM 3-pin male XLR
Microphone Body Dimensions	Φ37×220mm
Weight	173g

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

CM-504 Professional Speech Microphone product image

Product Overview

The Harmonai CM-504 is a high-quality desktop speech microphone designed specifically for professional speaking, meetings, lectures, and similar applications. It features a back-electret condenser capsule and a cardioid pickup pattern, paired with the H-230 bronze base for a sturdy, professional appearance. It effectively suppresses ambient noise and captures the speaker’s voice with exceptional clarity. Includes four microphone units, the bronze base, windscreen foam covers, and a protective carrying case—ideal for multi-scenario professional sound reinforcement.

Capsule Type

Back-electret condenser

Polar Pattern

Cardioid

Frequency Response

40Hz — 16kHz

Sensitivity

-36dB ± 3dB (0dB = 1V/Pa at 1kHz)

Output Impedance

500Ω ± 20% (at 1kHz)

Maximum Sound Pressure Level

130dB (T.H.D ≤ 1% at 1kHz)

Signal-to-Noise Ratio

70dB (1kHz at 1Pa)

Power Supply

48V DC, 2mA (phantom power)

Output Connector

XLRM 3-pin male XLR

Microphone Body Dimensions

Φ37 × 220mm

Weight

173g

Recommended Applications

The CM-504 is ideal for professional speaking, conference presentations, academic lectures, courtroom statements, and training classrooms. Its cardioid pickup pattern ensures clear vocal reproduction through the sound system while effectively rejecting off-axis ambient noise from the sides and rear—making it a perfect choice for meeting rooms, auditoriums, and multi-purpose venues.

For more information about Harmonai professional audio products or technical support, please contact our sales team.