Harmonai CM-503 Professional Speech Microphone

The Harmonai CM-503 is a professional speech microphone featuring a back-electret condenser capsule and cardioid polar pattern, with a frequency response of 40Hz–16kHz and XLRM 3-p...

$241.84

Model: CM-503
Category: Microphones
Images: 4 images
Status: ready

Product Brief

Harmonai CM-503 Professional Speech Microphone

Overview

The Harmonai CM-503 is a professional speech microphone featuring a back-electret condenser capsule and cardioid polar pattern, with a frequency response of 40Hz–16kHz and XLRM 3-p...

Price: $241.84
Model: CM-503
Category: Microphones

Specifications

Parameter	Value
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

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-503 is a professional-grade speech microphone, featuring a back-electret condenser capsule and a cardioid pickup pattern. With a frequency response spanning 40Hz–16kHz, it precisely captures and reproduces vocal detail. Paired with 48V phantom power and a standard XLRM 3-pin male output connector, it ensures stable, low-noise signal transmission—ideal for speeches, conferences, broadcasting, and studio production.

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

Recommended Applications

Ideal for a wide range of professional speech and conference settings, including corporate annual meetings, academic presentations, government sessions, and press briefings. Its cardioid pickup pattern effectively suppresses ambient noise, ensuring clear and intelligible voice reproduction. When paired with the H-230 bronze desktop stand, it offers stable placement on podiums; it’s also compatible with the included carrying case for field interviews and on-location recording.

For more information on Harmonai professional audio product selection or bulk procurement options, please contact our audio specialists.