Bluetooth 5.0 Stereo Audio Amplifier Board, USB, FM, AUX, Mic For DIY Projects
Transform standard passive speakers into a fully featured audio hub with the ARuiMei Bluetooth 5.0 Stereo Audio Amplifier Board. Engineered for DIY builders, tinkerers, and home audio enthusiasts, this compact circuit board removes complicated wiring while unifying six distinct input methods into one efficient interface. Select the 120W dual-channel configuration for desktop or bookshelf builds, or scale up to the 400W quad-channel model for larger multi-speaker installations. Continuous Bluetooth 5.0 streaming delivers stable, low-latency audio from phones and laptops, while dedicated USB, TF card, and AUX ports provide immediate source flexibility. The integrated 6.5mm microphone socket enables hands-free calls, live vocals, and on-the-fly recording directly to removable storage. A vivid color LED panel displays track indices and active modes, keeping adjustments clear even in dimly lit rooms.
Practical Usage & Setup Advice
- Pair the board with 4Ω to 8Ω passive enclosures to quickly revive vintage cabinets or construct custom wooden speaker boxes.
- Utilize the included infrared remote to adjust volume and toggle between Bluetooth, USB, and AUX without interrupting playback.
- Leverage the built-in memory function to automatically resume tracks from the exact pause point after a power cycle.
Technical Specifications
- Amplifier Configuration: 120W (2×30W) or 400W (4×100W)
- Wireless Standard: Bluetooth 5.0
- Supported Inputs: USB mass storage, TF card slot, 3.5mm AUX, FM tuner, 6.5mm mic jack
- Interface: Color LED display with brightness indicator
- Recording Feature: Direct audio capture to TF or USB media
- Protection Circuit: Polarity reversal safeguard on DC terminals
Package includes:
- 1 × Bluetooth Audio Amplifier Board
- 1 × IR Remote Control
- 1 × DC Power Cable Assembly
- 1 × Speaker Terminal Wiring Harness
Installation & Safety Reminders
Confirm correct positive and negative polarity before connecting the DC power source to prevent internal component failure. When operating the 120W variant, remember that the Type-C port is restricted to firmware updates and charging; it does not accept power input, and this model lacks the FM antenna connector. The 400W version demands a minimum 8A power supply to deliver full channel output. Keep the unit away from moisture and ensure unobstructed airflow around the chassis during extended sessions to maintain thermal stability.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. Consistent engineering standards and straightforward technical support have kept intercyprus.com a dependable reference for hobbyists since 2002.