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Gold-AP55 TPA3116 12V 24V MINI Audio Digital Power amplifier Stereo board 50W + 50W with bluetooth

Specification	Details
Amplifier Chip	TPA3116D2 (Class D)
Output Power	50W + 50W (Dual Channel)
Input Voltage	DC 12V to 24V
Bluetooth Version	5.0 (High-Speed Stability)
Audio Inputs	Bluetooth + 3.5mm AUX
Speaker Impedance	4Ω to 8Ω
Efficiency	> 90%

Price

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₹ 550.85

(Tax included)

Barcode: 3149

Product Description

The Gold-AP55 is an "all-in-one" mini amplifier that combines wireless connectivity with high-wattage output. Its miniature footprint makes it ideal for building custom desktop speakers, bookshelf systems, or adding Bluetooth capability to legacy wired speakers. The board is designed with an emphasis on audio clarity, featuring LC filtering to ensure a clean, low-noise signal. It also includes an integrated heatsink and a protective acrylic shell to ensure safe and stable operation during long listening sessions.

Key Features

Dual TPA3116D2 Architecture: Provides a balanced stereo output with enough power to drive medium to large bookshelf speakers.
Bluetooth 5.0 Integration: Offers a stable wireless range of up to 10-15 meters with low power consumption and fast pairing.
Ultra-Compact Design: One of the smallest 100W total output boards available, fitting easily into custom 3D-printed or wooden enclosures.
Multiple Input Options: Switch between wireless Bluetooth and a physical 3.5mm AUX line-in for versatile connectivity.
Built-in Protection: Features integrated safeguards against over-voltage, under-voltage, overheating, and short-circuits.

Technical Details

Dimensions: Approx. 70mm x 50mm x 20mm (with shell).
SNR: 102dB for crystal-clear sound reproduction.
Distortion: < 0.1% at normal listening levels.

Prototyping and Engineering Tips from Robogears

Power Supply Matching: To achieve the maximum 50W per channel, use a 24V 5A DC power supply. If you use a 12V supply, the output will be limited to approximately 15W-20W per channel.
Speaker Selection: This board is best paired with 4-Ω to 8-Ω speakers rated between 30W and 100W. 4-Ω speakers will draw more power and provide higher volume, but may cause the chip to heat up faster.
Shell Assembly: The board comes with a protective acrylic shell. Ensure you tighten the copper standoffs securely to prevent the board from vibrating against the plastic at high volumes.
Antenna Orientation: If you mount this module inside a wooden box, keep the onboard PCB antenna away from large metal objects or thick wires to maintain a strong Bluetooth signal.

Package Includes

1 x Gold-AP55 50W+50W Bluetooth 5.0 Mini Amplifier Board
1 x Acrylic Shell Set (Top & Bottom)
1 x Volume Knob Cap
Assembly Screws and Standoffs

Disclaimer

Do not exceed 24V DC input. Always verify the polarity of your power adapter before plugging it in, as reverse polarity will destroy the amplifier chip instantly.

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