20mm Dynamic In-Ear Earphone Driver
113dB High SPL TWS Earbud Speaker Unit
Why TWS & IEM Brands Choose XDEC Micro Earphone Drivers
❌ Common Pain Points of Off-the-Shelf Drivers
- Insufficient SPL, weak far-field listening
- Narrow frequency range, harsh treble
- Large form factor crowds the ear-cavity
- High power draw kills TWS battery life
- Poor SPL matching, L/R imbalance
- Unstable lead time, frequent stockouts
✓ XDEC Micro Earphone Driver Solution
- 113dB high SPL, loud and clear output
- F0~20KHz full-band, balanced tri-range
- 20mm ultra-compact diameter, fits any IEM shell
- 20mW low-power design, extends TWS runtime
- ±3dB SPL matching, perfectly paired L/R
- 50M units/month capacity, ships within 15 days
Product Specifications
| Parameter | Specification |
|---|---|
| Model | XDEC-20E32T16NG21 |
| Type | Class-E Micro In-Ear Earphone Driver (IEM) |
| Dimensions | 20mm × 4.3Hmm (Round) |
| Impedance | 32Ω ±15% |
| Rated Power | 20mW |
| Max Power | 30mW |
| Sensitivity (SPL) | 113dB ±3dB |
| Resonance Frequency | 350Hz ±20% |
| Frequency Range | F0 ~ 20KHz |
| Distortion | ≤5% Max |
| Polarity | + (Positive) |
| Operating Temperature | -25℃ ~ +60℃ |
| Storage Temperature | -25℃ ~ +60℃ |
| Load Test | White noise 24 hours, normal operation |
Dimension Drawing & Frequency Response
Dimension Drawing
Frequency Response
Core Advantages of the 20mm Micro Earphone Driver
113dB High SPL Output
Industry-leading SPL in this form factor, drives TWS earbuds without external amp for loud, clear voice and music
20mm Ultra-Compact Form
20×4.3H super-slim profile fits any IEM shell and TWS earbud housing without sacrificing cavity volume
F0=350Hz Deep Bass
Lower F0 means tighter, deeper low-end response, ideal for music enjoyment and full-bodied voice reproduction
20mW Low Power Draw
Engineered for ultra-low power consumption, extends TWS earbud battery life by 30%+ on a single charge
±3dB Tight SPL Pairing
Strict left-right sensitivity pairing guarantees stereo balance and consistent listening experience
Typical Application Scenarios
TWS True Wireless Earbuds (Primary Use)
Bluetooth in-ear earphones
IEM In-Ear Monitors
Stage performance / studio monitoring
AI Translation Earphones
Real-time interpretation / conference translation
Hearing Aids & Assistive Devices
Electronic voice amplification
Sleep Earbuds
Side-sleep isolation / white noise
Esports Gaming Headsets
Footstep localization / low latency
XDEC 20mm Earphone Driver vs Industry Standard
| Comparison Item | XDEC 20mm Earphone Driver | Industry Standard |
|---|---|---|
| Sensitivity (SPL) | 113dB high SPL | 100-105dB |
| Frequency Range | F0~20KHz full-range | F0~15KHz |
| Resonance Frequency | 350Hz low F0 | 500-700Hz |
| Rated Power | 20mW low power | 30-50mW |
| Pairing Precision | ±3dB strict pairing | ±5dB generic |
| Monthly Capacity | 50M units scale | 1-5M units/month |
Quality Certifications & Factory Strength
ISO9001 Certified
Quality management system
50M Units / Month
Mass production capacity
15-Day Fast Lead Time
On-time delivery, no stockouts
OEM/ODM Custom
Tailored product development
Frequently Asked Questions
Q1: Is this 20mm earphone driver suitable for TWS true wireless earbuds?
A: Absolutely. The 20×4.3H ultra-slim form factor fits TWS earbud housings effortlessly. 113dB high SPL delivers loud, clear output via direct Bluetooth drive without an external amplifier, while 20mW low power draw extends battery life, and F0=350Hz gives full-bodied music reproduction.
Q2: What is the minimum order quantity and lead time?
A: MOQ is 3,000 units for standard orders, 500 units for trial production, and 10,000 units for custom designs. Standard parts ship in 3-5 days, custom orders in 15-20 days. We run 50M units monthly capacity for reliable mass supply.
Q3: Do you offer left-right SPL matching service?
A: Yes. We provide strict ±3dB sensitivity pairing and ship L/R units as matched pairs, ensuring perfect stereo balance and consistent acoustic experience for TWS and HiFi earphone brands.
Q4: Can you customize impedance, SPL, or frequency response?
A: Yes. We offer 16Ω, 32Ω, and 64Ω impedance options, ±5dB SPL tuning range, and frequency response shaping based on your ear-cavity simulation. 1-4 free samples are provided for testing and validation.
Q5: Can this earphone driver be used in hearing aids?
A: Yes. The 113dB high SPL is well-suited for hearing assistance devices, the small form factor embeds easily into hearing aid shells, and 20mW low power draw conserves battery. With 17 years of professional speaker manufacturing, we are a stable supplier for multiple hearing aid brands.
Request Your Free 20mm Earphone Driver Sample
17-year pro earphone driver manufacturer - 1-4 free samples shipped, 3-5 day fast delivery
+86 755-27739805 (Mr. Li)
+86 13620938545 (Mr. Li)
liguodong@xdec.cn
www.xdecspeakerdriver.com
Shenzhen Xuanda Electronics Co., Ltd. (XDEC) | Pro Earphone Driver / Speaker Manufacturer | ISO9001 Certified
17 Years of Manufacturing Excellence | Exporting to 30+ Countries | OEM/ODM Custom Service
