TPA3116D2 2.1 Channel Audio Amplifier Board – 50W × 2 Stereo + 100W Subwoofer, Class D Amplifier Module with Bass, Treble & Volume Controls | Electrica

TPA3116D2 2.1 Channel Audio Amplifier Board – Electrica

The TPA3116D2 2.1 Channel Audio Amplifier Board is a compact Class D audio amplifier module designed for DIY audio systems, home audio projects, custom speaker systems, and electronic audio applications. Based on the TPA3116D2 amplifier IC, this board provides a three-channel audio configuration with dedicated left, right, and subwoofer outputs. It is suitable for users who want to build a stereo sound system with a separate bass channel using an integrated amplifier module.

The amplifier board features a claimed power configuration of 50W + 50W for the stereo channels and 100W for the subwoofer channel. Actual output power depends on the supply voltage, speaker impedance, cooling, and operating conditions. A suitable DC power supply and compatible speakers are necessary to achieve the best performance.

2.1 Channel Audio Output

This module provides a 2.1-channel audio arrangement consisting of two stereo channels and one dedicated subwoofer channel. The left and right outputs are used for stereo speakers, while the separate bass output is intended for a compatible subwoofer. This configuration allows users to build audio systems with separate stereo and low-frequency speaker outputs.

The board is suitable for DIY 2.1 speaker systems, custom home audio projects, desktop speaker systems, and other compatible audio applications.

Independent Audio Controls

The amplifier board includes three rotary control knobs for adjusting the audio output:

• Volume Control: Adjusts the overall audio level.
• Bass Control: Adjusts the bass output.
• Treble Control: Adjusts the high-frequency sound level.

These controls allow users to adjust the sound according to their speakers, listening preferences, and audio system configuration without requiring a separate external control board.

Class D Amplifier Design

The TPA3116D2 uses Class D amplifier technology, which is commonly used in compact audio amplification applications because of its efficient switching-based operation. The board includes an aluminium heatsink to help dissipate heat generated during operation.

Its integrated design combines the amplifier circuitry, audio controls, power input connection, and speaker output terminals on a single PCB. This makes it convenient for DIY electronics enthusiasts and audio system builders who need a ready-to-use amplifier module.

Power Input and Speaker Connections

The board has a DC power input connection and screw-terminal connections for the speaker outputs. The product image indicates a 12V–24V DC input range. Use a regulated power supply with suitable voltage and current capacity for your intended speaker configuration.

Before connecting the speakers, identify the positive and negative terminals for each output channel. Ensure that the speaker impedance is compatible with the amplifier and that the power supply is correctly connected. Do not connect or disconnect speakers while the amplifier is powered.

Compact Board with Practical Installation

With approximate dimensions of 102 × 70 × 28 mm, this amplifier board can be incorporated into compatible DIY speaker enclosures and custom audio projects. Its three rotary controls, heatsink, and connection terminals provide convenient access during installation and testing.

The PCB includes mounting holes to assist with installation inside a suitable enclosure. Ensure adequate ventilation and sufficient clearance around the heatsink during operation.

Applications

The TPA3116D2 2.1 Channel Amplifier Board can be used in:

• DIY 2.1 Channel Home Audio Systems
• Stereo Speaker Amplifier Projects
• Subwoofer Amplifier Projects
• Desktop Speaker Systems
• Custom Multimedia Speaker Systems
• Electronics and Audio Experimentation
• DIY Sound System Development
• Compatible Audio Enclosure Projects

Why Choose Electrica?

Electrica provides electronic components, modules, tools, and accessories for students, technicians, engineers, repair professionals, and DIY electronics enthusiasts. We aim to provide practical products with clear specifications to help customers select suitable components for their projects.

Visit our website to explore more electronic components and audio amplifier modules.

Website: https://www.electrica.com.pk

For product inquiries and orders, contact Electrica through WhatsApp.

Important: Please review the product images, dimensions, connection details, and specifications before placing your order. A suitable DC power supply and compatible speakers are required and are not included unless specifically mentioned in the package contents.

TPA3116D2 2.1 Channel Audio Amplifier Board – 50W × 2 Stereo + 100W Subwoofer