TPA3116D2 Audio Dual Channel Stereo Digital Amplifier Board 80W+80W

Bluetooth stereo + subwoofer amplifier board with volume and tone knobs.

Build a custom speaker system or give a DIY home audio project its own stereo and subwoofer output with this TPA3116-based 2.1-channel Class D amplifier board. Onboard Bluetooth connectivity lets you bring audio into the build, while separate volume, treble, and bass knobs make adjustments accessible. An aluminum heatsink helps manage heat, and screw terminals with pre-attached power and speaker leads help speed up assembly.

Key features

• TPA3116-based Class D amplifier with 2.1 channels (stereo + subwoofer)
• Built-in Bluetooth audio receiver
• Independent volume, bass, and treble controls
• Aluminum heatsink for thermal management
• Screw terminal connectors with pre-wired power and speaker leads
• Suitable for DIY speakers, subwoofer boxes, and audio upgrade projects

Before powering: Confirm the board's supply voltage, speaker impedance, and output ratings for your setup.

Description

This TPA3116D2 Audio Dual Channel Stereo Digital Amplifier Board is a Class-D amplifier module designed for stereo audio applications. It supports a DC 12–24V power supply and provides two independent audio output channels. It is suitable for DIY Bluetooth speakers, home audio systems and other audio projects.

⭐ Key Features

TPA3116D2 Class-D digital amplifier IC

Dual-channel stereo audio output

Output power specification: 80W × 2 (claimed)

Operating voltage: DC 12–24V

High-efficiency amplification

Suitable for 4–8Ω speakers

Compact PCB design

Suitable for DIY audio projects

📋 Technical Specifications

Product Type: Dual-Channel Stereo Digital Amplifier Board

Amplifier IC: TPA3116D2

Amplifier Class: Class-D

Number of Channels: 2 (Stereo)

Output Power: 80W × 2 (claimed; depends on operating conditions)

Input Voltage: DC 12–24V

Recommended Input Current: More than 5A for higher-power operation

Supported Speaker Impedance: 4–8Ω

Input Impedance: 1kΩ

Amplification Factor: 45 times (as specified)

Mounting Type: PCB Module

🔧 Applications

DIY Bluetooth speaker systems

Home audio systems

Stereo speaker amplifiers

Multimedia speakers

Bookshelf speaker projects

Home theatre audio projects

DIY audio equipment

Electronic hobby projects

🛠️ Connection Instructions

Connect a suitable 12–24V DC power supply to the board.

Connect the left and right speakers to their respective output terminals.

Connect the audio source to the amplifier input.

Verify power supply polarity before switching on.

Use speakers suitable for the selected supply voltage and output power.

📦 Package Includes

1 × TPA3116D2 Audio Dual Channel Stereo Digital Amplifier Board 80W + 80W

⚠️ Precautions

Use a suitable DC power supply within the specified 12–24V range.

Never connect the board directly to AC mains.

Actual output power depends on supply voltage, speaker impedance, cooling and distortion level.

Ensure correct speaker wiring and power polarity.

Provide adequate ventilation during high-power operation.

Avoid short-circuiting the speaker outputs.

Turn off the power before changing connections.