20mm Dynamic Microphone Capsule for Saxophone

Key features of 20mm dynamic microphone capsule: directional, high output, low distortion

The ECM-DM2025K600 is a 20 x 25 mm dynamic microphone capsule with -56dB±3 sensitivity and 60dB SNR, designed for saxophone pickup with excellent directionality and high output.

🚫 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-DM2025-2K600
Dimensions: 20 × 25 mm
Directivity: Unidirectional
Sensitivity: -56dB±3
Impedance: 600Ω±15%
S/N Ratio: 60dB
Max SPL: 110dB
Frequency Response: 100Hz~15KHz

Tags: 20mm Dynamic Instrument Mics

Technical Specifications

This 20.4mm dynamic microphone capsule is designed for instruments like saxophones, where clear directionality and high output are essential. With a warm low end and boosted vocal range, it delivers strong pickup and rich tonal presence on stage or in studio settings.

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

Frequency response: 100Hz–15kHz. Provides solid low end and vocal clarity, with focused directivity — ideal for saxophone pickup.

Dimensions (UNIT: mm)

Dimensions

Φ20.4 × 24.9mm cylindrical design.

Packaging Overview

Packed in protective foam trays with individual compartments.
Each compartment holds around 4 microphone capsules.
Each capsule is sealed in a protective bag for dust and moisture resistance.
Each box typically contains approximately 2,000 microphone units.

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.