50W+50W Bluetooth 5.1 Digital Stereo Amplifier Board YS-AP50L
50W+50W Bluetooth 5.1 Digital Stereo Amplifier Board YS-AP50L
50W+50W Bluetooth 5.1 Mini Digital Stereo Amplifier Board – YS-AP50L
Upgrade your DIY audio projects with the YS-AP50L Stereo Bluetooth Digital Power Amplifier Board — a compact, high-performance module that delivers up to 50W per channel of crisp, clear stereo sound. Whether you're building a custom speaker cabinet, retrofitting a vintage hi-fi unit, or creating a workshop audio system from scratch, this amplifier board gives you professional-grade output in a miniature footprint. Made in Mainland China.
Key Features
- Bluetooth 5.1 — Stable wireless connection up to 15 meters (line of sight) for seamless audio streaming
- Dual-Channel Stereo Output — True left/right stereo, up to 50W+50W at 4Ω (DC 24V supply)
- Wide Supply Voltage — DC 12V–24V input; higher voltage = greater output power
- Compatible Speaker Range — Works with 30W–200W speakers at 4Ω, 8Ω, and 16Ω impedances
- Built-in Protection — Reverse polarity protection, short circuit protection, and self-recovery overheating protection keep your components safe
- Line Out (Audio Out) — Flexible output options for custom audio routing
- DIY-Ready Design — Compact board format ideal for integration into enclosures, speaker builds, and audio modification projects
Power Output Reference Chart
| Supply Voltage | 8Ω Output | 4Ω Output |
|---|---|---|
| DC 12V | 15W + 15W | 20W + 20W |
| DC 15V | 18W + 18W | >30W + 30W |
| DC 19V | 32W + 32W | >45W + 45W |
| DC 24V | 40W + 40W | >50W + 50W |
Technical Specifications
- Model: YS-AP50L
- Bluetooth Version: 5.1
- Wireless Range: Up to 15 meters (unobstructed)
- Supply Voltage: DC 12V–24V (do not exceed 26V)
- Recommended Supply Current: 2A or greater
- Channels: 2 (Left + Right Stereo)
- Compatible Speakers: 30W–200W | 4Ω / 8Ω / 16Ω
- Recommended Headphone Max Impedance: <32 Ohm
- Input: Bluetooth
- Output: Line Out (Audio Out)
Important Usage Notes
- Position the board away from Wi-Fi routers to minimize wireless interference.
- Supply voltage must remain between DC 12V–24V. Voltages exceeding 26V will damage the chip.
- Use a power supply rated at 2A or more for optimal performance.
- Keep speaker cables short — ideally within 1 meter.
- Always discharge static electricity from your hands before handling the board. The Bluetooth chip is sensitive to electrostatic discharge.
- Use speakers rated at 40W or above to prevent overheating.
- Ensure your power supply output rating exceeds the amplifier's output power to maintain sound quality.
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Frequently Asked Questions
Q: What is the maximum output power of the YS-AP50L Bluetooth amplifier board?
A: At DC 24V supply voltage with a 4Ω speaker load, the YS-AP50L delivers over 50W per channel (50W+50W stereo). Output power scales with supply voltage — lower voltages such as 12V will produce less wattage per channel.
Q: What Bluetooth version does the YS-AP50L amplifier board use, and what is its wireless range?
A: The YS-AP50L uses Bluetooth 5.1 for a stable, low-latency wireless connection. In open, unobstructed conditions, it achieves a transmission distance of up to 15 meters.
Q: What speakers are compatible with this digital amplifier board?
A: The YS-AP50L is compatible with speakers rated between 30W and 200W at impedances of 4Ω, 8Ω, or 16Ω. For best results and to prevent overheating, it is recommended to use speakers with a rated power of 40W or higher.
Q: Is it safe to power this board with any DC power supply?
A: The board operates safely within DC 12V–24V. Never exceed 26V as this will permanently damage the chip. A power supply rated at 2A or more is recommended, and its total output capacity should exceed the amplifier's output power for the best audio quality.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.