6.5 Inch Woofer Speaker – Low-Frequency Unit for Deep Bass

Woofer Speaker – Low-Frequency Unit for Deep Bass 6.5 Inch

Powerful 6.5-inch woofer with a 38mm voice coil, delivering dynamic bass and rich low-frequency audio.

🚫 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-SP16575RS-001
Dimensions: 165 × 75 mm
Impedance: 4Ω±20%
Max SPL: 89dB±3dB (1m / 1W)
Power: 80W
Frequency Response: 60Hz～10kHz

Technical Specifications

The ECM-SP16575RS-001 is a 6.5-inch woofer speaker designed for deep and dynamic bass reproduction. Featuring a robust 38mm voice coil and a frequency range of 500Hz to 10kHz, this woofer ensures impactful low-frequency performance. Its high sensitivity of 90dB SPL and durable design make it suitable for home theaters, professional sound systems, and other applications demanding rich and powerful bass. The woofer provides consistent and reliable performance, making it an excellent choice for various audio setups.

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.