4Inch Tweeter Speaker – High-Frequency Unit for Precision Audio

Tweeter Speaker – High-Frequency Unit for Precision Audio 4Inch

High-performance 4×1.4 inch tweeter with a 25mm voice coil, delivering precise and stable high-frequency sound.

🚫 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-SP10335RS-001
Dimensions: 103 × 34.7 mm
Impedance: 4Ω±20%
Max SPL: 90dB±3dB (1m / 1W)
Power: 5W
Frequency Response: 500Hz~10KHz

Technical Specifications

The ECM-SP10335RS-001 is a 4×1.4 inch tweeter speaker designed for delivering accurate high-frequency audio. Featuring a 25mm voice coil and a frequency range of 60Hz to 10kHz, this unit ensures precise sound reproduction for professional audio applications. With its compact design and stable performance, it’s ideal for use in home audio systems, studio monitors, and automotive sound systems. The tweeter is optimized for applications requiring clarity and detail in the high-frequency range.

Frequency Response Curve

103mm tweeter frequency response (500Hz-10kHz)

High-frequency unit with 90dB±3dB sensitivity, 800Hz±20% resonance frequency, tested per IEC 268-5 standard.

Impedance vs Frequency

3.6Ω tweeter impedance curve

25mm ASV/PESV voice coil with 3.6Ω±10% DC resistance and 180° lead wire configuration.

Dimensions (UNIT: mm)

103mm tweeter mechanical drawing

Compact Ø103mm×34.7mm frame with black steel chassis and silk diaphragm.

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.