Harmonai CM-31 Professional Broadcast Microphone image 1

Harmonai CM-31 Professional Broadcast Microphone — Interchangeable Capsule, Back-Electret Condenser

The CM-31 is a Harmonai professional broadcast microphone featuring a back-electret condenser capsule and interchangeable capsules for versatile voice capture in radio studios, rec...

$52.76

Model: CM-31
Category: Microphones
Images: 4 images
Status: ready

Product Brief

Harmonai CM-31 Professional Broadcast Microphone — Interchangeable Capsule, Back-Electret Condenser

Overview

The CM-31 is a Harmonai professional broadcast microphone featuring a back-electret condenser capsule and interchangeable capsules for versatile voice capture in radio studios, rec...

Price: $52.76
Model: CM-31
Category: Microphones

Specifications

Parameter

Value

• Interchangeable cardioid, supercardioid, and omnidirectional capsules • Flat midrange response with slight high-frequency boost for clear, natural vocal reproduction • Metal matte-finish body

compact, elegant, and durable • 48V phantom power • Gold-plated XLR connector for optimal audio current transmission Capsule Type: Back-electret condenser Polar Pattern: Cardioid / Supercardioid / Omnidirectional Frequency Response: 40Hz–16kHz Sensitivity: -38dB±3dB (1V/Pa at 1kHz) Equivalent Noise Level: ≤25dBA Maximum SPL: 130dB (THD≤1% at 1kHz) Power Supply: 48V DC, 2mA Cable Length: 3m (outlay) 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

CM-31 Professional Broadcast Microphone product image

Product Overview

CM-31 is a professional broadcast microphone from Harmonai, engineered for radio broadcasting, recording studios, and high-quality vocal recording. It features a back-electret condenser capsule and offers three interchangeable capsules: cardioid, supercardioid, and omnidirectional, enabling flexible sound pickup across diverse environments. Its flat midrange and slightly elevated high-frequency response ensure clear, natural vocal reproduction. The compact, durable metal matte-finish body pairs with a gold-plated XLR 3-pin male connector for stable signal transmission.

Capsule Type

Back-electret condenser

Polar Pattern

Cardioid / Supercardioid / Omnidirectional (interchangeable capsules)

Frequency Response

40Hz–16kHz

Sensitivity

-38dB±3dB (1V/Pa @ 1kHz)

Equivalent Noise Level

≤25dBA

Maximum SPL

130dB (THD≤1% @ 1kHz)

Power Requirement

48V DC phantom power, 2mA

Cable Length

Output Connector

XLRM 3-pin male (gold-plated contacts)

Enclosure Material

Metal matte-finish body

Recommended Applications

Ideal for radio broadcast voiceovers, studio vocal recording, podcast and audiobook production, conference speaking, and interview recording. The interchangeable capsule design allows adaptable performance across varying pickup distances and ambient noise conditions—making it an ideal choice for content creators and audio professionals.

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