XH-A158 Bluetooth 5.0 Amplifier Board — PAM8403 5W×2, DC 5V, Wireless Stereo Speaker

XH-A158 Bluetooth 5.0 Amplifier Board — PAM8403 5W×2, DC 5V, Wireless Stereo

The XH-A158 combines a Bluetooth 5.0 receiver with a PAM8403 Class D stereo amplifier on a single compact board — providing a complete wireless audio solution that drives two 4Ω or 8Ω speakers at up to 5W per channel from a 5V USB power supply. No audio cables needed: pair your phone or tablet via Bluetooth and connect speakers directly to the board terminals. Ideal for DIY Bluetooth speaker builds, audio upgrade projects, and portable speaker enclosures.

Specifications

• Bluetooth Version: 5.0
• Amplifier IC: PAM8403 (Class D)
• Output Power: 5W × 2 channels (stereo)
• Speaker Impedance: 4Ω or 8Ω
• Supply Voltage: DC 5V (USB power bank or USB adapter)
• Bluetooth Range: Up to 10m (line of sight)
• Audio Codec: SBC (standard Bluetooth audio)
• SNR: >80dB (PAM8403)
• THD: <0.1% at 1W output

PAM8403 Class D vs Class AB Amplifier

• PAM8403 Class D (this board): ~90% efficiency, minimal heat, runs from 5V USB — for portable battery-powered speakers
• Class AB (e.g., LM386): ~50% efficiency, more heat, better audio quality at low power — for mains-powered audio

Typical Applications

• DIY Bluetooth speaker enclosure build
• Wireless audio upgrade for existing speaker cabinet
• Portable USB-powered Bluetooth speaker
• Raspberry Pi / Arduino audio output with Bluetooth input
• Desktop computer wireless speaker system

XH-A158 Bluetooth 5.0 amplifier board — PAM8403 5W×2, DC 5V, 10m range for DIY wireless Bluetooth speaker and portable audio amplifier projects.

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

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