TDA2030A × 3 – 2.1 Channel Subwoofer Amplifier Circuit

With 4558 Deep Bass Low Pass Filter | High-Performance Audio Solution

Take your sound system to the next level with this 2.1 channel amplifier circuit, featuring three TDA2030A ICs and a 4558 low-pass filter for deep, rich bass. This board is engineered to deliver crisp audio for stereo channels and powerful low-frequency output for subwoofers, making it ideal for home theater systems, DIY Bluetooth speakers, and PC audio upgrades.

⚙️ Key Features:

• TDA2030A × 3 Configuration:

  • 2 × TDA2030A for stereo left/right channels

  • 1 × TDA2030A bridged for subwoofer output

• 4558 Dual Op-Amp: Built-in low-pass filter for enhanced bass response and frequency isolation

• Channel Output:

  • 2.1 Channel Configuration: Left + Right + Subwoofer

  • Deep Bass Support: Smooth, distortion-free low-frequency performance

• Power Supply: ±12V to ±18V recommended (dual power)

• Output Power: Up to 18W per channel (stereo), ~35W for subwoofer (bridged)

• PCB Quality: High-quality PCB with copper tracing for improved conductivity and heat dissipation

🔌 Applications:

• DIY 2.1 Speaker Systems

• Subwoofer-Integrated Audio Projects

• Custom PC/TV Audio Setups

• Low-Cost Home Theater Amplifiers

• Educational and hobbyist electronics kits

🎵 Why You'll Love It:

• Dedicated subwoofer channel with filtered deep bass

• Clear stereo output with strong mid and high frequencies

• Ideal for compact yet powerful audio solutions

• Easily integrates with Bluetooth modules, tone controllers, and preamps