Introduction
Desktop speakers, home theater soundbars, and outdoor trolley speakers demand strong bass performance. The 50mm external magnet speaker, with its larger magnetic circuit, higher power handling, and powerful low-frequency output, has become the preferred driver for these applications.
XDEC (Shenzhen Xuanda Electronics Co., Ltd.) offers 384 models of external magnet speakers, with 50mm variants covering the full 8-15W power range and customizable impedance options.
What Is an External Magnet Speaker?
External magnet speakers place the magnet outside the voice coil, providing a larger magnetic circuit area and stronger driving force. Compared to internal magnet designs, external magnet speakers deliver deeper bass and higher power handling capacity.
Key Advantages
| Advantage | Description |
|---|---|
| High Power | Rated 8-15W, peak up to 20W+ |
| Deep Bass | Stronger magnetic driving force |
| Better Heat Dissipation | External magnet has larger surface area |
| Cost-Effective | More affordable than equivalent internal magnet |
Key Specifications
| Parameter | Recommended Range | Notes |
|---|---|---|
| Impedance | 4Ω / 8Ω | 4Ω for BT/digital amp; 8Ω for traditional HiFi |
| Rated Power | 8W - 15W | 8W for desktop/bookshelf; 15W for outdoor |
| Sensitivity | 85 - 92 dB | Higher = more efficient, aim for 88dB+ |
| F₀ | 80 - 150 Hz | Lower F₀ = better bass |
| Frequency Response | 80Hz - 10kHz | Bass depends on F₀ and enclosure |
XDEC 50mm External Magnet Speaker Recommendations
| Size | Impedance | Power | Sensitivity | F₀ | Features | |
|---|---|---|---|---|---|---|
| Φ50×22mm | 4Ω | 10W | 89dB | 120Hz | Universal, best value | |
| Φ50×25mm | 4Ω | 15W | 88dB | 95Hz | Strong bass, outdoor preferred | |
| Φ50×20mm | 8Ω | 8W | 90dB | 140Hz | High sensitivity, desktop HiFi |
📦 MOQ: 1,000pcs | Samples ship within 3 days
Application Guide
| Application | Power | Impedance | Recommended |
|---|---|---|---|
| Desktop Bookshelf Speaker | 8-10W | 4Ω/8Ω | W5016A / W5010C |
| Soundbar | 10-15W | 4Ω | W5020B |
| Outdoor Trolley Speaker | 15W+ | 4Ω | W5020B (parallel) |
| Home Theater | 10W | 8Ω | W5010C |
Why Choose XDEC?
🏭 15 Years of Manufacturing: ISO9001/IATF16949 certified
📦 384 External Magnet Models: 15W high-power models in stock
🔧 Flexible Customization: Impedance, height, and lead wire adjustable
📐 Technical Support: T/S parameter reports + enclosure suggestions
🚚 Stable Delivery: Standard 7-15 days; mass production 30 days