Φ28mm Mylar Speaker Driver 4Ω 1.5W
Intercom / POS / Two-Way Radio Replacement
4 Real Pain Points When Sourcing Intercom / POS Speakers
Lessons from shipping 2000+ speaker models over 17 years
❌ Common Industry Issues
- POS beep lost in noisy retail environments
- Intercom voice distorted by background noise
- Narrow frequency response makes alert tones dull
- Unit-to-unit SPL variation breaks left/right pairing
- Sensitivity drops after 60℃ long-term aging
✓ Φ28mm Mylar Solution
- 92dB output penetrates ambient retail noise
- 660Hz low F0 keeps voice natural, low self-noise
- F0~20KHz full range for crisp alert tones
- ±1.5dB pairing tolerance for stereo consistency
- 60℃/96h aging verified, sensitivity stays stable
Product Specifications
| Parameter | Specification |
|---|---|
| Model | XDEC-28M04T18NH03 |
| Type | Mylar Speaker Driver (M-Class) |
| Dimension | Φ28mm × 6.2mm (Round) |
| Impedance | 4Ω |
| Rated Power | 1.5W |
| Max Power | 2.0W |
| Sensitivity | 92dB |
| Resonance F0 | 660Hz |
| Frequency Range | F0 ~ 20KHz |
| Distortion | Per batch measured (≤5% Max typical) |
| Polarity | + (Positive) |
| Operating Temp | -25℃ ~ +60℃ |
| Storage Temp | -25℃ ~ +60℃ |
| Load Test | Normal after white-noise load test |
Data source: XDEC lab measurement. Per-batch ±3dB SPL variation applies.
Dimension Drawing & Frequency Response
Dimension Drawing
Frequency Response
5 Core Strengths
92dB High Sensitivity
Penetrates noisy retail and outdoor environments; 1.5W input delivers ample SPL for voice alerts and intercom call tone
Φ28×6.2mm Compact Round
Fits tight cavities of intercom handsets, POS terminals, two-way radio shells without redesigning the enclosure
660Hz Low F0 + F0~20KHz
Warm mid-low for voice, crisp high end for alert tones; one driver covers both intercom voice and POS beep roles
-25℃~+60℃ Wide Temp
60℃/96h heat and 90~95%RH humidity tests passed; reliable for outdoor POS kiosks, building intercom cabinets
±1.5dB Pairing Tolerance
17-year IQC standard; left/right channels match in intercom handsets and two-way radios without manual selection
Typical Applications
Φ28mm mylar driver fits mid-size cavities where voice clarity and alert loudness both matter
Building Intercom (Primary)
Indoor handset voice, door station call
POS / Checkout Terminals
Payment received beep, barcode scanned tone
Two-Way Radio / Walkie-Talkie
Handheld and mobile radio voice
Reading Pen / Story Machine
Children's learning device voice output
Smart Door Lock
Fingerprint prompt, doorbell trigger
IoT Device / Alarm Hub
Smart sensor, gateway alert tone
Φ28mm Mylar Driver vs Industry Common Specs
| Item | XDEC Φ28mm Mylar | Industry Common 28mm |
|---|---|---|
| Impedance | 4Ω Low | 8Ω |
| Rated Power | 1.5W | 0.5-1W |
| Sensitivity | 92dB | 86-90dB |
| Resonance F0 | 660Hz Low | 800-1100Hz |
| Pairing Tolerance | ±1.5dB Commercial | ±3dB Generic |
XDEC (Shenzhen Xuanda Electronics) Factory Capability
17 Years Focused
Founded 2009, dedicated to speaker driver manufacturing
2000+ Driver Models
Φ3-Φ324mm coverage, 7 driver categories
5 Certifications
ISO9001 / IATF16949 / TUV Rheinland / Shenzhen High-Tech
Exported to 30+ Countries
DE/JP/KR/US/SEA leading brand customers
Frequently Asked Questions
Q1: How does this Φ28mm mylar driver perform in intercom voice applications?
A: 92dB sensitivity + 660Hz low F0 + F0~20KHz wide response delivers clear voice with full mid-low and clean high end. ±1.5dB pairing tolerance ensures left/right channel matching for indoor intercom handsets and door stations. 1.5W rated power handles continuous call duty without thermal stress.
Q2: What amplifier requirements apply to 4Ω low-impedance drivers?
A: 4Ω low impedance draws more current at the same voltage, so the amplifier IC must support 4Ω loads. This driver is ideal for battery-powered intercom handsets, POS terminals, and portable radios. If your amp is 8Ω-only, we can recommend a matching 8Ω variant from our 28M/27Y/36M lineup.
Q3: What is the MOQ and lead time?
A: Standard MOQ 3000 pcs; trial orders 500 pcs; customized specs 10000 pcs. Standard stocked models ship in 3-5 days; customized samples 15-20 days, mass production 30 days onward. Driver selection proposal within 24h, datasheet review feedback within 48h.
Q4: Do you support OEM/ODM and customer logo printing?
A: Yes. 17-year factory runs full OEM/ODM flow: custom F0, lead length, housing, customer logo printing. Payment terms: 30% deposit + 70% balance for standard orders; ODM large orders can be split flexibly. Factory audit supported via video or on-site visit; we serve DE/JP/KR/US/SEA customers.
Q5: What is the sample policy?
A: Standard-spec samples are free (customer pays shipping). Sample cost is refundable or deducted from the first production order. Customized samples are charged at sample build cost, deducted from mass production. Samples reach domestic customers within 7 days.
Q6: Why is THD not listed in the spec table?
A: M-class mylar drivers typically measure ≤5% Max THD. XDEC measures THD per batch. If your application (in-car audio, professional intercom) requires specific THD, request the per-batch THD curve from our engineers during driver selection.
Request Φ28mm Mylar Sample & Driver Selection
Driver selection proposal within 24h. Datasheet review feedback within 48h.
Shenzhen Xuanda Electronics Co., Ltd. | 17 Years Speaker Driver Manufacturing | ISO9001 + IATF16949 + TUV Rheinland
Website: www.xdecspeakerdriver.com
