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2.1 Stereo Amplifier Kit Class D – 2x50W + 100W Subwoofer with TPA3116D2
High-fidelity 2.1 stereo audio amplifier, ideal for DIY projects, car audio systems, multimedia speakers, or home audio systems. This module is equipped with two TPA3116D2 chips and a NE5532 tone control for clean, powerful, and precise sound.
One TPA3116D2 chip is used for amplifying the left and right channels, while the other operates in bridge mode for the subwoofer, providing 100W strong bass. The two stereo channels each provide 50W.
Advantages and Features:
- Class D digital amplifier with high efficiency
- Compatible with 4-8 Ohm speakers
- Total power: 2 × 50W + 100W Subwoofer
- Effective tone control with integrated NE5532
- Two power inputs and two selectable audio inputs
- Volume control via potentiometers directly mounted on the PCB
Technical Specifications:
| Parameter | Value |
|---|---|
| Amplification Type | Class D (Digital) |
| Chips | 2 × TPA3116D2 |
| Configuration | 2.1 – 2 stereo channels + 1 subwoofer channel |
| Output Power | 2 × 50W + 100W (Subwoofer) |
| Output Impedance | 4 – 8 Ohms |
| Power Supply | 12V – 24V DC / min. 3A |
| Frequency Range | 14Hz – 100kHz |
| SNR (Signal-to-Noise Ratio) | 100dB |
| Switching Frequency | 1.2MHz |
| Volume Control | Potentiometer directly on the board |
| Dimensions | 10 × 9 × 2.5 cm |
This module is the ideal choice for those who want to build a compact and powerful audio system, with a dedicated subwoofer and fine tone control. Perfect for car audio systems, home theater, or DIY active speakers.
Presentation Video – 2.1 Amplifier TPA3116D2
Photo Gallery – Stereo Audio Amplifier Kit
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