Dynamic Microphone Capsule 30.4mm for Audio Interfaces

30.4mm Dynamic Microphone Capsule for Audio Interfaces

ECM-DM588K600 microphone capsule size and frequency response

Dynamic microphone capsule tailored for podcasting and streaming, offering clear voice capture with minimal background noise.

Dynamic microphone designed for use with audio interfaces, ideal for recording vocals and instruments with clear sound quality and noise rejection.

Dynamic microphone capsule engineered for live streaming and podcasting, providing high-quality voice clarity and noise reduction.

With a wide 50Hz–15kHz frequency response and 600Ω impedance, this 30.4 × 49.6 mm unidirectional dynamic microphone capsule is optimized for desktop mics, streaming gear, and audio interfaces, delivering clear, robust vocal performance for studio and broadcast use.

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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-DM588K600
Dimensions: 30.4 × 49.6 mm
Directivity: Unidirectional
Sensitivity: -53dB±3
Impedance: 600Ω±30%
S/N Ratio: 75dB
Max SPL: 110dB
Frequency Response: 50Hz~15KHz

Tags: 30mm Dynamic Vocal Mics

Technical Specifications

Engineered for clear vocal capture and minimal distortion, the ECM-DM588K600 is a high-performance 30.4mm dynamic microphone capsule optimized for audio interfaces and streaming equipment. Its wide 50Hz–15kHz frequency range ensures detailed low-end presence and smooth vocal clarity, making it well-suited for podcasting, live broadcasting, and studio recording.

The unidirectional polar pattern focuses on voice pickup while reducing background noise, and the 600Ω impedance provides strong compatibility with professional audio hardware.

Whether integrated into handheld mics, desktop streamers, or interface-connected systems, this capsule delivers consistent, full-bodied sound for creators and communicators alike.

Exploded View & Parts List

Exploded View of ECM-DM588K600 Dynamic Microphone Head

Includes: sponge, cover, diaphragm, coil, magnetic steel, iron pots, holder, and PCB with tin coating.

Frequency Response Curve

ECM-DM588K600 Frequency Response

The frequency response spans from 50Hz to 15kHz, delivering warm lows, clear mids, and a gentle high-frequency roll-off—ideal for rich, full vocal reproduction in streaming and voice applications.

Dimensions (UNIT: mm)

Dimensions of ECM-DM588K600: 30.4mm diameter, 49.6mm height

Large-diameter capsule measuring Φ30.4 × 49.6mm, commonly used in live streaming sound cards and desktop vocal microphones.

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.