15mm Cardioid Dynamic Microphone Capsule Replacement

Cardioid Dynamic Microphone Capsule Replacement 15mm

ECM-DM1508K150 microphone capsule dimensions and frequency response chart

Durable handheld dynamic microphone element for live vocal performances and public speaking.

Microphone element optimized for classroom amplifier systems to project clear speech in teaching environments.

Dynamic microphone capsule integrated into boom headsets, ideal for hands-free communication in sports and call centers.

Optimized for clear vocal pickup in handheld microphones, classroom amplification, and boom headset applications, this 15 × 8 mm unidirectional dynamic microphone capsule features a 100Hz–9kHz frequency response and stable 150Ω impedance, delivering focused, natural sound ideal for professional and educational use.

🚫 Factory direct sales only – no retail.
Minimum order quantities (MOQs) apply.
For intercom & headset makers
📞 Contact us for orders & inquiries.

🧪 Sample

Free (std. models) + shipping

🧭 Trial Order

From 200 pcs (1st order only)

📦 MOQ

3,000 pcs (mixed models allowed)

Model: ECM-DM1508K150
Dimensions: 15 × 8 mm
Directivity: Unidirectional
Sensitivity: -66dB±2
Impedance: 150Ω
Frequency Response: 100Hz~9000Hz

Tags: 15mm Dynamic Vocal Mics

Technical Specifications

Our 15mm dynamic microphone capsule delivers rich, full sound with high fidelity and minimal distortion, emphasizing the core frequency range essential for clear voice reproduction.

With a unidirectional polar pattern and stable 150Ω impedance, it ensures focused audio capture and broad compatibility across various audio systems.

Designed primarily for handheld microphone assemblies, this rugged capsule is also well suited for classroom amplifier systems and boom headsets used in sports and call center environments, providing reliable, natural vocal amplification in demanding settings.

Exploded View & Parts List

Exploded view of ECM-DM1508K150 dynamic microphone capsule

Includes sponge, cover, diaphragm, coil, magnetic steel, iron pot, holder, and PCB with solder.

Frequency Response Curve

Frequency Response of ECM-DM1508K150

Frequency range of 100Hz–9kHz delivers warm lows and clear mids, making it a solid choice for vocal-focused dynamic microphone assemblies.

Dimensions (Unit: mm)

Dimensions of ECM-DM1508K150: Φ15×8.0mm

Compact dynamic capsule measuring Φ15 × 8mm for voice-focused audio applications.

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.