Φ27mm × 16.2mm Speaker Driver
Built for Smart Doorbells, Intercoms & Walkie-Talkies
What Sourcing Engineers Actually Worry About in a 27mm Driver
Two drivers both labeled "4Ω 2W" can sound 30% different in real enclosures. The gap rarely lives in the headline spec - it hides in sensitivity tolerance, F0 stability, and acoustic matching to your housing.
Common Failure Modes
- Sensitivity rated 90dB, actual batch drift ±5dB, 30% of lots fail incoming QC
- F0 overstated high, buzzes & rattles in any enclosure under 25mm depth
- Marked 2W but voice coil deforms after 30 minutes - life below 500 hours
- Stray flux from cheap magnet corrupts WiFi/BT module certifications
- Missing test reports - shipments stuck at customs in EU/US
XDEC's Approach
- 90±3dB tight tolerance, 100% sweep-tested with curve report attached
- F0 real value 260Hz, stable output even in 25mm shallow enclosures
- 96-hour white-noise load test passed, life ≥8000 hours
- Optimized magnetic circuit, stray flux ≤5 Gauss, no 2.4G module interference
- ISO9001 + IATF16949 + TUV reports, customs clearance in 30+ countries
Technical Specifications
Dimension Drawing & Frequency Response
Dimension Drawing / Outline
Φ27mm round frame, 16.2mm mounting height (full tolerances in datasheet)
Frequency Response Curve
F0 = 260Hz, F0~15kHz flat response (sweep data on request)
Why OEM Buyers Specify XDEC for 27mm Drivers
Four design choices that make a small driver survive real-world deployment
F0 = 260Hz (Measured)
True F0, not paper spec. Holds full body in 25mm shallow housings without buzz or rattle.
90dB High Sensitivity
Loud, intelligible voice playback for doorbell / intercom use - heard clearly across a hallway.
Stray Flux ≤5 Gauss
Optimized neodymium circuit - safe to mount next to WiFi / Bluetooth / 4G modules.
96h Load-Tested
White-noise burn-in at full power, life ≥8000h - well above industry average.
-25℃ ~ +60℃ Range
48h thermal cycle test passed - outdoor doorbell, factory PA, in-car use all covered.
17-Year Factory Direct
Shenzhen XDEC, 7 driver families covering Φ3 to Φ324mm, stable capacity, OEM/ODM ready.
Typical Applications
Smart Doorbells
chime + 2-way talk
Building Intercoms
indoor station / door station
Walkie-Talkies
handheld / vehicle / ham
Smart Home Hubs
voice assistant / smart speaker
Smart Locks
prompt tones / alarm
Medical Devices
monitor alerts / bedside units
Learning Devices
reading pen / kids tablet
POS / Kiosks
voice prompt / buzzer replacement
Frequently Asked Questions
Q1: What is the MOQ for the Φ27mm speaker driver, and how fast can I get samples?
XDEC offers three MOQ tiers: 500 pcs for trial samples, 3,000 pcs for standard SKUs, 10,000 pcs for fully customized builds. In-stock SKUs ship in 3-5 days, custom orders take 15-20 days, and samples reach you in ~7 days. A dedicated engineer is assigned 1-on-1 for your spec review.
Q2: Can this driver be customized? What OEM/ODM options are available?
Yes - full OEM/ODM is available. Customization covers impedance (4Ω / 8Ω / 16Ω / 32Ω), power rating, lead wire and connector, housing color, silk-screen logo, and retail packaging. Selection proposal within 24h, datasheet review within 48h.
Q3: Will the neodymium magnet interfere with the WiFi or 4G module on my doorbell PCB?
No measurable interference at typical 5mm keep-out distance. Stray flux is held at ≤5 Gauss through an optimized magnetic circuit, so 2.4G WiFi, Bluetooth, and 4G modules keep their certification margins. Deployed in volume at multiple Tier-1 smart-doorbell brands.
Q4: Is the driver weather-resistant for outdoor doorbell or intercom use?
Operating range -25℃ ~ +60℃, storage -25℃ ~ +60℃, plus 48h humidity test at +40℃ / 90-95% RH. The driver itself is fine in shaded outdoor housings; for direct sun exposure we recommend adding a UV/rain shield around the driver cavity.
Q5: Can I order a small trial batch of 500 pieces? What payment terms do you accept?
Yes, 500-piece trial orders are welcome. Standard terms are T/T 30% deposit + 70% before shipment. Long-term partners can apply for monthly settlement. Factory audits in Shenzhen are free of charge - just book a date with our team.
Q6: How long has XDEC been manufacturing speakers, and what product lines do you cover?
Shenzhen Xuanda Electronics (XDEC) was founded in 2009, with 17 years focused on speaker drivers, receivers, and microphones. Seven product families - M (Mylar) / Y (multimedia neodymium) / W (external-magnet) / E (headphone) / B (laptop) / BOX (enclosure) / Z (vibration) - cover Φ3 to Φ324mm. Certified to ISO9001:2015, ISO14001:2015, IATF16949, and TUV; products shipped to 30+ countries including Germany, Japan, Korea, the US, and Southeast Asia.
Q7: How is the 90dB sensitivity verified? Can I get the test report with the shipment?
Every batch is 100% sweep-tested before packing. Each shipment ships with a frequency-response PDF and a sensitivity data table. Third-party verification (SGS / TUV) can be arranged on request, and the measured value is held within ±3dB of the nominal spec.
About XDEC - Shenzhen Xuanda Electronics
Shenzhen Xuanda Electronics Co., Ltd. (XDEC) was founded in 2009 with 17 years of focus on speaker drivers, receivers, and microphones. Seven product families - M (Mylar) / Y (multimedia neodymium) / W (external-magnet) / E (headphone) / B (laptop) / BOX (enclosure) / Z (vibration) - cover Φ3 to Φ324mm, serving headphones, walkie-talkies, learning machines, reading pens, projectors, smart home devices, laptops, telephones, DVD players, medical equipment, navigation systems, security systems, automotive, and audio applications.
Vision: To become a world-class speaker manufacturer
Mission: Help our customers deliver great sound to every corner of the world
Service Philosophy: Treat the customer's urgency as our own
Certifications: ISO9001:2015 ｜ ISO14001:2015 ｜ IATF16949 ｜ TUV Rheinland ｜ Shenzhen High-Tech Enterprise
Global Reach: 30+ countries (Germany / Japan / Korea / USA / Southeast Asia), serving brand owners, ODM factories, and e-commerce sellers
Need a Φ27mm Speaker Driver Sample or Quote?
XDEC engineers respond 1-on-1, selection proposal within 24h, datasheet review within 48h
Website: www.xdecspeakerdriver.com
