15mm Dynamic Microphone Replacement Cartridge for Loudspeakers

Name: 15mm Dynamic Microphone Replacement Cartridge for Loudspeakers - ECMIC
SKU: ECM-DM1508K250
Price: 1.35 USD
Availability: InStock
Rating: 5.00 (1 reviews)

Dynamic Microphone Replacement Cartridge for Loudspeakers 15mm

ECM-DM1508K250 microphone capsule dimensions and frequency response chart

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

Lightweight dynamic microphone capsule designed for headworn applications in fitness, presentations, and performances.

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

Rated 5.00 out of 5

(1 customer reviews)

Optimized for clear vocal pickup in voice amplification systems, headworn microphones, and KTV handheld mic replacements, this 15 × 8 mm unidirectional dynamic microphone capsule features a 100Hz–9kHz frequency response and 200Ω or 250Ω impedance options. It delivers warm, focused sound ideal for professional and entertainment use.

Model: ECM-DM1508K250
Dimensions: 15 × 8 mm
Weight: 1.5 g
Directivity: Unidirectional
Sensitivity: -61 dB ± 3
Impedance: 200 Ω, 250 Ω
Frequency Response: 100 Hz ~ 9000 Hz

Request Information / Sample

Tell us your project stage. Our engineering team will respond accordingly.

Lead Time

Samples: 1–3 weeks
Mass production: 2–4 weeks

Customization

Application-based engineering support
Structure / sensitivity / acoustic tuning

MOQ

3,000 pcs
Per model / per production batch

Certification

RoHS & UL compliant
Industrial reliability assured

Technical Specifications

The ECM-DM1508K250 is a compact dynamic microphone capsule engineered for voice-focused applications. With a frequency response spanning 100Hz to 9kHz, it captures the vocal range with clarity and warmth, making it ideal for public address systems, teaching aids, and headworn microphone solutions.

Its unidirectional polar pattern ensures focused audio capture with reduced ambient noise, while impedance options of 200Ω or 250Ω provide broad compatibility with amplification circuits and audio interfaces.

Designed for integration into handheld or headworn devices, the ECM-DM1508K250 offers stable performance in both professional and everyday voice amplification scenarios—from classrooms to karaoke venues.

Exploded View & Parts List

Exploded view of ECM-DM1508K250 dynamic microphone capsule

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

Frequency Response Curve

Frequency response of ECM-DM1508K250

The frequency response spans from 100Hz to 9kHz, providing full-bodied lows, balanced mids, and a natural roll-off in the highs—ideal for clear vocal reproduction.

Dimensions (Unit: mm)

Dimensions of ECM-DM1508K250: Φ15×8.0mm

Dynamic microphone capsule with Φ15 × 8mm size, designed for voice-focused sound capture with emphasized mid-frequency presence.

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.