TDA7379 Stereo Power Amplifier Board DC 12V 39W+39W NE5532

Upgrade your audio projects with the TDA7379 Stereo Power Amplifier Board Module — a compact, high-performance amplifier solution designed for DIY audio enthusiasts, hobbyists, and electronics makers. Powered by the TDA7379 amplifier chip paired with an NE5532 preamplifier, this board delivers a clean, powerful 39W + 39W stereo output from a single DC 12V supply.

Measuring just 50mm × 33mm, this board packs impressive audio capability into a space-saving footprint, making it ideal for custom speaker builds, car audio projects, desktop amplifiers, and more.

Key Features

• TDA7379 Amplifier Chip: Newly imported chip for consistent, reliable stereo output at 39W per channel
• NE5532 Preamplifier: High-quality op-amp preamplifier stage for clean signal handling and low noise
• Adjustable Gain: R8 and R10 are the magnification-setting resistors — default gain is approximately 2–3×; swap in resistors from 10kΩ to 47kΩ to customize gain (higher resistance = higher gain factor)
• Plug-In Resistor Compatibility: Supports plug-in resistors; the original chip resistors can be removed, and plug-in resistor pads are positioned at the patch end for easy modification
• Premium Coupling Capacitors: Input and output coupling capacitors on the preamplifier stage use imported electrolytic capacitors, optimized for superior performance over standard polarity-sensitive alternatives
• Compact Form Factor: 50mm (L) × 33mm (W) — easy to integrate into enclosures, DIY speaker kits, and custom builds
• Single DC 12V Supply: Simple, accessible power requirement for straightforward integration

Specifications

• Amplifier Chip: TDA7379
• Preamplifier Chip: NE5532
• Supply Voltage: DC 12V
• Output Power: 39W + 39W (Stereo)
• Board Dimensions: 50mm × 33mm
• Channel Configuration: 2-Channel Stereo

Who Is This For?

Whether you're building a custom home speaker system, retrofitting a car audio setup, creating a desktop amplifier, or simply experimenting with audio electronics, this board provides a robust and flexible foundation. The adjustable gain feature makes it especially appealing for those who want precise control over their audio chain.

For more information on electronics safety and best practices when working with amplifier modules, visit the U.S. Consumer Product Safety Commission (CPSC).

Learn more: Amplifier

Frequently Asked Questions

Q: What does the TDA7379 Stereo Power Amplifier Board Module do?

A: The TDA7379 Stereo Power Amplifier Board Module amplifies an audio input signal to deliver 39W + 39W stereo output using a DC 12V power supply. It features the TDA7379 power amplifier chip and an NE5532 preamplifier stage, making it suitable for speaker systems, DIY audio builds, and custom electronics projects.

Q: How do I adjust the gain on this amplifier board?

A: Gain is controlled by resistors R8 and R10 on the board. The default configuration provides approximately 2–3× magnification. To increase or decrease the gain, replace these resistors with values ranging from 10kΩ to 47kΩ — a higher resistance value produces a higher gain factor. The board also supports plug-in resistors, so the original chip resistors can be removed and new values soldered into the plug-in pads on the patch end.

Q: What power supply does this amplifier board require?

A: This board operates on a standard DC 12V power supply, which is widely available and easy to source. Ensure your power supply can deliver sufficient current to support the 39W + 39W output capacity for optimal performance.

Q: What type of projects is this amplifier board best suited for?

A: This board is ideal for DIY speaker builds, desktop audio amplifiers, car audio modifications, custom home theater components, and any electronics project requiring a compact, adjustable stereo power amplifier with a clean preamplifier stage.

Q: Are the coupling capacitors on the preamplifier stage high quality?

A: Yes. The input and output coupling capacitors on the NE5532 preamplifier stage use imported electrolytic capacitors, which provide superior performance compared to standard polarity-sensitive alternatives, contributing to cleaner signal handling throughout the audio chain.