Φ40mm (1.57 inch) Speaker Driver
for Bluetooth & Smart Speakers
Choosing a Speaker Driver Supplier? Watch Out for These
❌ Common Pitfalls
- Vocal clarity lost once the driver is mounted in a small enclosure
- Spec sheets overstate sensitivity, real units sound muffled
- Wrong impedance matching causes overheating and distortion
- Unreliable suppliers miss delivery dates and stall production
- Parameter drift between batches from weak quality control
✓ The XDEC Approach
- Φ40mm square internal-magnet design, easy to mount
- 79±3dB high sensitivity for clear vocal and voice assistant response
- 180Hz low resonance frequency for solid bass extension
- 3W rated power, 48-hour white noise load test before shipment
- 17 years of speaker driver experience, consistent batch-to-batch
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | XDEC-40Y04T14NL20 |
| Type | Internal-magnet multimedia speaker driver (Y) |
| Size | Φ40 × 40 × 20H mm (1.57 inch) |
| Impedance | 4 ohm |
| Rated Power | 3W |
| Max Power | 4W |
| Sensitivity | 79±3dB |
| Resonance Frequency | 180Hz |
| Frequency Range | F0 ~ 19KHz |
| Distortion | 5% max |
| Polarity | + (positive) |
| Load Test | Normal after 48h white noise |
| Storage Temperature | -25℃ ~ +60℃ |
Dimension Drawing & Frequency Response
Dimension Drawing

Frequency Response

* Illustrative drawings. Full dimension drawing and frequency curve available in the datasheet on request.
Built for Bluetooth & Smart Speaker Drivers
79dB High Sensitivity
Clear vocal reproduction, fast voice assistant wake-up, great at low volume
Φ40mm Compact Square
Internal-magnet square design, easy mounting and flexible enclosure layouts
F0~19KHz Wide Range
Balanced mid and high frequencies for both music playback and voice
3W Low Power Design
Portable-device friendly, helps extend battery life of wireless speakers
17-Year Factory
Direct from the source in Shenzhen, ISO9001 certified, stable supply
Typical Applications
Bluetooth Speakers
Portable and desktop Bluetooth audio
Smart Speakers
Voice assistants, AI interactive speakers
Soundbars
TV soundbars and bar speakers
Desktop Speakers
Computer and multimedia speakers
Smart Home
Smart displays, hubs, voice intercoms
XDEC vs Typical Market Specs
| Item | XDEC 40mm Driver | Typical Market |
|---|---|---|
| Sensitivity | 79±3dB | 72-76dB |
| Resonance Frequency | 180Hz | 200-300Hz |
| Frequency Range | F0~19KHz | F0~15KHz |
| Power | 3W rated / 4W max | 2W rated |
| Quality Control | 48h white noise load test | Sampling or none |
Flexible MOQ, OEM/ODM Service, Reliable Lead Time
Whether you need 500 pcs for a pilot run or a full custom program, XDEC works as your speaker driver manufacturing partner from sampling to mass production.
Trial / Pilot
MOQ from 500 pcs for pilot production and field testing
Standard Order
MOQ 3000 pcs for standard catalog models
Custom / OEM / ODM
MOQ 10000 pcs for custom sizes and parameters
Lead Time
3-5 days for stock items, 15-20 days for custom programs
Frequently Asked Questions
Q1: What products is this 40mm speaker driver best suited for?
A: It targets Bluetooth speakers, smart speakers, desktop multimedia speakers and soundbars. The Φ40mm (1.57 inch) internal-magnet design delivers 79±3dB sensitivity for clear voice, a 180Hz resonance frequency for solid bass, and F0~19KHz range covering both voice and music.
Q2: What is the MOQ? Can I get samples first?
A: MOQ is 500 pcs for pilot production, 3000 pcs for standard orders and 10000 pcs for custom programs. Free samples are available on request - they ship within 3-5 days so you can test the driver in your enclosure before committing.
Q3: How long is the lead time for bulk orders?
A: Stock items ship in 3-5 days; custom programs take 15-20 days. XDEC owns its factory in Shenzhen, so production scheduling is under our control. Long-term partners can reserve capacity in advance to avoid supply gaps.
Q4: Do you support OEM/ODM customization? How is quality controlled?
A: Yes. We adjust impedance, power, frequency response and sensitivity, plus wires, terminals and mounting. Every batch goes through a 48-hour white noise load test. With 17 years of speaker driver manufacturing and ISO9001 certification, batch-to-batch consistency is our strength. Full datasheets are available for your evaluation.
Request Free Samples Today
Test the driver in your enclosure first, then scale with confidence
Manager Yuan
+86 135 2888 3307
yuan@xdecspeakerdriver.com
www.xdecspeakerdriver.com
XDEC | Professional Speaker Driver Manufacturer | ISO9001 Certified
Export Quality, Global Supply | OEM/ODM Custom Service | 17 Years of Experience

