50W×2 Bluetooth 5.1 Digital Stereo Amplifier Board YS-AP50L

50W+50W Bluetooth 5.1 Digital Stereo Power Amplifier Board – YS-AP50L

Take your DIY audio build to the next level with the YS-AP50L 50W×2 Mini Digital Stereo Amplifier Board. Featuring Bluetooth 5.1 wireless connectivity, this compact amplifier module delivers crystal-clear, full-bodied stereo sound across both channels — perfect for custom speaker enclosures, audio modification projects, home audio setups, and more. Stream music wirelessly from your phone, tablet, or laptop up to 15 metres away with no dropouts and no compromises on audio quality.

Made in Mainland China.

Key Features

• 50W per channel (100W total) — scalable output based on supply voltage (DC 12V–24V)
• Bluetooth 5.1 — stable, low-latency wireless audio streaming up to 15 m (unobstructed)
• Dual-channel stereo — true left/right channel separation for immersive audio
• Compatible with 4Ω, 8Ω, and 16Ω speakers rated 30W–200W
• Triple protection: reverse polarity protection, short-circuit protection, and self-recovering overheating protection
• Compact board design — easy to integrate into any DIY audio enclosure or modification project
• LINE OUT (Audio Out) for flexible signal routing

Technical Specifications

Usage Notes

1. Keep the amplifier board away from Wi-Fi routers to reduce wireless interference.
2. Do not exceed 26V supply voltage — doing so may damage the chip.
3. Use a power supply rated above 2A for optimal performance.
4. Keep speaker cables under 1 metre in length for best results.
5. Always discharge static electricity from your hands before handling the board — the Bluetooth chip is sensitive to electrostatic discharge (ESD).
6. Use speakers rated at 40W or above to prevent overheating.
7. Ensure your power supply output is greater than the amplifier's output power for the best sound quality.

Great Pairing Ideas

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Learn more: ENERGY STAR product efficiency guidance

Frequently Asked Questions

Q: What power supply do I need for the YS-AP50L Bluetooth amplifier board?

A: The YS-AP50L requires a DC power supply between 12V and 24V, with a current rating of at least 2A. For maximum output of 50W+50W per channel, use a 24V supply. Do not exceed 26V, as this may damage the internal chip.

Q: What speakers are compatible with the YS-AP50L amplifier board?

A: This amplifier board is compatible with passive speakers rated between 30W and 200W with impedances of 4Ω, 8Ω, or 16Ω. For safe operation, speakers rated at 40W or higher are recommended to avoid overheating.

Q: How far away can I stream audio via Bluetooth to the YS-AP50L?

A: The YS-AP50L uses Bluetooth 5.1, which supports a wireless transmission range of up to 15 metres in an unobstructed environment. For best performance, keep the board away from Wi-Fi routers and other sources of 2.4GHz interference.

Q: Is the YS-AP50L suitable for DIY speaker and audio modification projects?

A: Yes — this compact amplifier board is specifically designed for DIY audio builds, custom speaker enclosures, and audio modification projects. Its small footprint, versatile voltage range, and built-in protection features make it an excellent choice for hobbyists and electronics enthusiasts.

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.