Bluetooth 5.0 Digital Stereo Amplifier Board | AUX USB 50W+50W

YS-AP50L Bluetooth 5.0 Stereo Digital Amplifier Board

Upgrade your audio setup with the YS-AP50L Bluetooth 5.0 Stereo Digital Amplifier Board — a compact, versatile amp module designed for home audio projects, car audio builds, and DIY speaker systems. With support for Bluetooth 5.0 wireless streaming, a 3.5mm AUX input, USB audio input, and app control via your smartphone, this board delivers impressive stereo output in a surprisingly small footprint.

Key Features

• Bluetooth 5.0 Connectivity: Enjoy stable, low-latency wireless audio streaming from your smartphone, tablet, or other Bluetooth-enabled devices.
• Multiple Input Options: Choose from Bluetooth, 3.5mm AUX, or USB audio input to suit your source device and use case.
• App Control: Manage audio settings and switching conveniently from a dedicated smartphone app.
• Mechanical Volume Knob: A satisfying rotary knob controls both volume and power — turn to switch on, no waiting for indicator lights or button presses.
• Wide Voltage Range (DC 12V–24V): Greater supply voltage yields higher output power, making it adaptable to a variety of power setups. Pair with lower-impedance speakers for maximum output.
• Compact ABS Enclosure: Measures approximately 52 × 52 × 22 mm (2.04 × 2.04 × 0.86 in) — small enough to integrate into tight builds without sacrificing performance.
• Stereo 50W + 50W Output: Dual-channel amplification for a full, immersive stereo sound experience.
• Durable ABS Construction: Built to last with a rugged ABS housing suited for embedded installations and DIY enclosures.

Specifications

• Model: YS-AP50L
• Bluetooth Version: 5.0
• Input: Bluetooth 5.0 / 3.5mm AUX / USB
• Operating Voltage: DC 12V – 24V
• Output Power: 50W + 50W (stereo)
• Material: ABS
• Dimensions: Approx. 52 × 52 × 22 mm / 2.04 × 2.04 × 0.86 in
• App Control: Yes (smartphone compatible)

What's Included

• 1 × YS-AP50L Bluetooth 5.0 Digital Amplifier Board

Perfect For

• DIY home speaker builds and audio upgrades
• Car and vehicle audio installations (DC 12V systems)
• Workshop, garage, or desktop speaker projects
• Electronics hobbyists and audio enthusiasts

For guidance on safe electronics use and electrical standards, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What audio inputs does the YS-AP50L Bluetooth 5.0 Amplifier Board support?

A: The YS-AP50L supports three audio input methods: Bluetooth 5.0 wireless streaming, a 3.5mm AUX jack, and a USB audio input — giving you flexible connectivity with virtually any audio source device.

Q: What voltage does this digital amplifier board require, and how does it affect output power?

A: The board operates on DC 12V to 24V. A higher supply voltage translates to greater output power, while a lower speaker impedance also increases the output. For maximum performance, use a higher voltage supply within the rated range paired with appropriate low-impedance speakers.

Q: How do I turn the YS-AP50L amplifier on and off?

A: The board features a mechanical rotary volume knob that doubles as the power switch. Simply turn the knob to power the unit on or off — no button press or waiting for indicator lights required, making operation quick and intuitive.

Q: Can I control the YS-AP50L from my smartphone?

A: Yes. In addition to the physical volume knob, the YS-AP50L supports app control via a compatible smartphone app, allowing you to manage audio settings and input switching wirelessly from your phone.