8 Inch Dynamic Speaker Driver

The ECM-SP21094-4Ω100W speaker driver is engineered for top-notch audio reproduction. With precise dimensions of 210 × 94 mm and an impedance of 4Ω±15%, it ensures compatibility with most audio equipment. It achieves a maximum SPL of 92dB±3 at 1W/1m, delivering loud, crisp sound even at moderate power levels. Its frequency response of 59Hz to 5kHz offers clear, articulate vocals and a balanced midrange, making it perfect for media sound applications like film audio, voiceovers, and music playback.

🚫 Factory direct sales only – no retail.
Minimum order quantities (MOQs) apply.
Suitable for brand owners and manufacturers only.
📞 Please contact us to discuss your project and order details.

🧪 Sample

Free sample – shipping extra

🧭 Trial Order

From 500 pcs (1st order only)

📦 MOQ

3,000 pcs (mixed models allowed)

Model: ECM-SP21094-4Ω100W
Dimensions: 210 × 94 mm
Impedance: 4Ω±15%
Max SPL: 92dB±3dB Max (1W / 1m)
Power: 100W
Frequency Response: 59Hz～5KHz±3dB 1/3 OCT

Technical Specifications

Our ECM-SP21094-4Ω100W speaker driver delivers high-fidelity sound with a well-balanced frequency response, making it an excellent choice for media sound systems, home theaters, and professional audio setups. Its sturdy 8-inch dynamic design ensures reliable performance, even in demanding environments. The speaker’s 92dB SPL and broad frequency range of 59Hz to 5kHz make it ideal for applications that require clear mid and low frequencies, such as media playback and sound reinforcement.

Frequency Response Curve

Response Curve

Impedance vs Frequency

Impedance Frequency

Dimensions (UNIT: mm)

Appearance Size

Reliability Tests

Load Test: Input power of 100W with pink noise for 100 hours, followed by a 2-hour recovery period.

Heat Resistance Test: Operates normally at +70°C ±2°C for 16 hours, followed by a 2-hour recovery period.

Cold Resistance Test: Operates normally at -20°C ±2°C for 16 hours, followed by a 2-hour recovery period.

Humidity Test: Operates in environments with +40°C ±2°C and 90-95% humidity for 16 hours, followed by a 2-hour recovery period.

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.