TPA3116D2 2.1 Channel Amplifier – 50W x 2 Stereo Audio Amplifier Board

Build a powerful DIY audio system with this TPA3116D2 2.1 Channel Amplifier, designed for stereo speaker output and a dedicated subwoofer channel. Based on the TPA3116D2 Class D audio amplifier IC, this amplifier board is suitable for DIY speaker projects, home audio systems, custom speaker enclosures, and audio upgrade applications. It provides two stereo output channels rated at up to 50W per channel, along with a separate subwoofer output. Actual output power depends on the power supply voltage, speaker impedance, cooling, and operating conditions.

2.1 Channel Stereo and Subwoofer Output

This TPA3116D2 amplifier board supports a 2.1-channel audio configuration. It is designed to drive two main speakers for left and right stereo sound, along with a separate subwoofer for low-frequency audio. This arrangement allows you to build a compact audio system with dedicated bass output.

The board is suitable for users who want to assemble their own speaker systems rather than purchase a complete ready-made amplifier. It can be integrated into a compatible enclosure with an appropriate DC power supply and speakers.

Class D Amplifier Technology

The TPA3116D2 is a Class D audio amplifier IC from Texas Instruments. Class D amplification uses switching technology to provide efficient audio amplification in a compact design. This makes the board useful for DIY audio projects where power efficiency, compact size, and heat management are important considerations.

The board includes a large aluminium heatsink to help dissipate heat during operation. Adequate ventilation and correct installation are recommended, particularly when operating at higher output levels.

Five Rotary Control Knobs

The amplifier board features five rotary control knobs for audio adjustment. These controls allow users to adjust sound characteristics and output according to their audio setup. The board’s control functions include bass, treble, volume, and subwoofer-related adjustment. Check the printed labels on the board before connecting or operating the controls.

These adjustment options make the module suitable for custom audio systems where users want direct access to sound settings.

Audio Input and Connection Options

The board provides audio input connections for integrating compatible audio sources. The supplied connection diagram illustrates dual-channel stereo input and mono input methods, along with 3.5mm audio jack connection options.

The stereo input method is suitable for left and right audio signals. A compatible mono input arrangement can also be used according to the board’s connection diagram. Always observe the correct signal and ground connections to avoid incorrect wiring.

Power Supply and Installation

The board is marked for a DC 12–24V power input. Use a regulated DC power supply within this marked range and ensure that its current capacity is suitable for the connected speakers and expected operating level. Observe the correct positive and negative polarity when connecting the power supply.

Use speakers with compatible impedance and power ratings. Do not short-circuit speaker outputs, and do not connect or disconnect speakers while the amplifier is powered. Provide sufficient ventilation around the heatsink during operation.

Applications

The TPA3116D2 2.1 Channel Amplifier is suitable for DIY home audio systems, stereo speaker projects, subwoofer speaker systems, custom multimedia speakers, audio amplifier enclosures, and electronics hobby projects. It can also be used by technicians and makers developing custom audio equipment.

Why Choose This Amplifier Board?

This module combines stereo amplification and a dedicated subwoofer channel on one board. Its heatsink, rotary adjustment controls, and multiple audio input connection methods make it a practical option for users building a custom 2.1-channel audio system.

Whether you are assembling a DIY speaker enclosure or developing a home audio project, this TPA3116D2 amplifier board provides a compact platform for your audio electronics setup.

Available at Electrica – Quality Electronic Components and DIY Modules. Visit https://www.electrica.com.pk/ to explore more electronic components, amplifier boards, modules, and accessories.

Why Choose the TPA3116D2 Amplifier Board from Electrica?

The TPA3116D2 2.1 Channel Amplifier Board provides a practical platform for DIY audio enthusiasts, electronics students, technicians, and audio system builders. Its stereo and subwoofer output arrangement, multiple sound adjustment controls, and alternative audio input connections make it a flexible choice for custom audio applications.

At Electrica, we offer electronic components, modules, tools, and accessories for electronics development and DIY projects. Visit our website to explore more audio amplifier modules and electronic products.

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

For product inquiries and orders, contact Electrica through WhatsApp.

Note: Please review the product images and connection diagrams before installation to understand the input connections, power terminals, speaker outputs, and control functions.

• Audio Amplifier Modules: https://www.electrica.com.pk/
• Browse other amplifier boards and audio modules on Electrica.
• Texas Instruments TPA3116D2 product information: https://www.ti.com/product/TPA3116D2