Selecting the right compact speaker is crucial for achieving optimal audio performance in space-constrained devices like laptops, tablets, and smartphones. The XDEC-2415B from Shenzhen XuanDa Electronics (XDEC) is a high-performance 24×15mm rectangular speaker designed specifically for portable electronics. This guide provides an in-depth analysis of its technical specifications, engineering advantages, and target applications.
Product Overview: The XDEC-2415B Speaker
This ultra-compact speaker delivers 8Ω impedance, 1.5W max power, and a 93dB sensitivity, making it ideal for crisp voice reproduction and balanced multimedia audio in slim devices. Its 24×15×4.1mm form factor ensures seamless integration into modern thin-profile designs.

Key Technical Specifications
| Parameter | Specification | Condition / Notes |
|---|---|---|
| Dimensions | 24×15×4.1mm | Tolerance: ±0.3mm |
| Nominal Impedance | 8Ω ±15% (DCR: 7.8Ω ±15%) | At 0.89V sine wave |
| Rated Power | 1.0W | Max: 1.5W at 3.46V |
| Resonance Frequency | 850Hz ±20% | Measured at 0.89V |
| Sensitivity (SPL) | 93±3 dB | 0.1W/0.1M, avg. 0.8–1.5kHz |
| Frequency Range | F0 ~ 20kHz | Output SPL -10dB |
| THD | ≤10% | At 2kHz, 0.1W/0.1M |
| Operating Temp. | -25°C to +60°C | Stable performance across climates |
Engineering Advantages
High Power Density
Despite its small size, the speaker handles 1.5W max power with minimal distortion, ideal for loud notifications and voice assistants.
Durability & Environmental Resilience
Load Test: 24hrs white noise at 1.5W.
Temperature Tests: -25°C to +60°C for 48hrs.
Humidity Test: 90–95% RH at 40°C for 48hrs.
DFM-Optimized Design
Clear polarity markings for easy assembly.
Solder terminals withstand 350°C for 2–3 seconds.
Exceptional Acoustic Clarity
Wide frequency range (850Hz–20kHz) and low distortion ensure clear audio for calls, music, and system alerts.

Target Applications
Mobile Devices: Smartphones, tablets, and ultrabooks.
IoT & Wearables: Compact smart home devices, wearables.
Industrial Electronics: Medical alerts, handheld scanners.
Automotive: In-car notification systems.
Why Choose XDEC?
Shenzhen XuanDa Electronics (XDEC) combines 17+ years of electroacoustic expertise with rigorous QC standards. The XDEC-2415B reflects their commitment to miniaturization without compromise, backed by:
Global certifications (RoHS, REACH).
Customization support for OEM/ODM projects.
