Dynamic Microphone Cartridge for Stage Speech, Paging & Vocal Applications

ECM-DM3023-450 Dynamic Microphone Capsule Uni-Directional

ECM-DM3023-450 Microphone Capsule Features: Stable Output, Feedback Resistant, Balanced Tonality

Dynamic Microphone Cartridge for Stage Speech, Paging & Vocal Applications - Image 3

ECMIC microphones 12,000 m² factory with 6M+ units monthly output and ISO/CE certifications

ECMIC microphones automated production line overview, showing assembly and quality control process

This dynamic microphone cartridge features a uni-directional pattern and 450Ω impedance, delivering stable and clear audio for stage speech, paging systems, and vocal applications. Other impedance options are available: 400Ω, 450Ω, 500Ω, and 600Ω.

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Minimum order quantities (MOQs) apply.
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🧪 Sample

Free (std. models) + shipping

🧭 Trial Order

From 200 pcs (1st order only)

📦 MOQ

3,000 pcs (mixed models allowed)

Model: ECM-DM3023-450
Dimensions: 30 × 22.7 mm
Weight: 26 g
Directivity: Unidirectional
Sensitivity: -51 dB ± 3
Impedance: 400 Ω, 450 Ω, 500 Ω, 600 Ω
Frequency Response: 100 Hz ~ 9 kHz

Tags: 30mm Dynamic Vocal Mics

Technical Specifications

The ECM-DM3023-450 dynamic microphone capsule is a high-quality, uni-directional element designed for stage speech, paging systems, and vocal applications. It features a robust cylindrical frame housing a durable coil and diaphragm system that ensures stable and clear audio, making it ideal for live sound reinforcement and professional performance settings.

The capsule offers a frequency response spanning 100Hz to 9kHz (see response curve), a standard 450Ω impedance, and –51dB sensitivity. Additional impedance options are available: 400Ω, 500Ω, and 600Ω, allowing seamless integration into a variety of microphone systems. Engineered for reliability, it provides precise pickup while maintaining excellent feedback resistance.

Designed to withstand demanding environments, the ECM-DM3023-450 is an excellent choice for manufacturers and B2B clients seeking rugged, purpose-built dynamic microphone elements tailored for both performance and communication applications.

Exploded View & Parts List

Exploded View

Structure includes: Sponge, Cover, Diaphragm, Coil, Magnetic Steel, Iron Pots, Holder, PCB with Tin Plating.

Typical Frequency Response

Frequency Response

The frequency response spans 100Hz to 9kHz, rising steadily to a peak around 5kHz before gently tapering off at higher frequencies. This ensures clear, natural, and well-balanced pickup of vocals and instruments in both live and studio environments.

Dimensions (UNIT: mm)

Dimensions

Cylindrical design measuring 30 × 22.7 mm, net weight 26g.

Reliability Tests

High Temperature Test: Microphone subjected to +60℃ ±3℃ for 96 hours with 20-50% humidity, followed by 6 hours of normal temperature lay.

Low Temperature Test: Microphone subjected to -25℃ ±3℃ for 96 hours with 20-50% humidity, followed by 6 hours of normal temperature lay.

Humidity Test: Microphone exposed to 40℃ and 90-95% relative humidity for 96 hours, followed by 6 hours of normal temperature lay.

Temperature Cycle Test: Microphone subjected to rapid temperature changes from normal temperature to +60℃ ±3℃ for 1 hour (normal temperature lay for 3 hours) and then to -25℃ ±3℃ for 1 hour (normal temperature lay for 3 hours).

Sensitivity Stability: Sensitivity remains within ±3dB of the initial sensitivity after each environmental test.

Sampling Process

Confirm customer requirements:

Review product application, microphone capsule specifications, usage scenarios, and sound quality needs.

Recommend and specify:

Provide recommended microphone capsule models and detailed specifications for customer evaluation.

Sample provision and testing:

Deliver microphone samples for customer testing and feedback purposes.

Optimize and finalize:

Refine microphone design based on feedback, finalize samples, and proceed to mass production upon quality approval.

Quality Assurance

Conducting sampling inspections of incoming materials to ensure compliance with standard requirements.

Performing inspection audits to ensure the stability and control of the entire manufacturing process.

Conducting pre-shipment inspections to ensure that products meet established quality standards.

Acoustic Laboratory

Testing of background noise, sensitivity, frequency response curve, and directionality indicators.

Verification of the impact of different circuits, structural dimensions, materials, and processes on indicators.

Reliability testing at both the new product design stage and the mass production regular stage.

Automatic Workshop

Utilizing fully automated production lines to ensure high efficiency and consistency.

Equipped with state-of-the-art facilities, including a 10,000-level dust-free workshop.

Employing a rigorous 21-step process to guarantee product stability.