Key Highlights
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Key Features
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TB21
₹850.00
The TB21 2.1 Channel Bluetooth Power Amplifier Module is a compact, high-power Class-D audio amplifier designed for DIY speaker and home-audio projects. It delivers up to 50W + 50W stereo output and 100W subwoofer output, allowing you to drive two main speakers and one subwoofer.
It supports Bluetooth 5.0 and AUX audio input, while independent controls for main volume, treble, bass, subwoofer volume and subwoofer frequency allow convenient sound customization. The amplifier uses the TPA3116D2 amplifier chip and operates from a DC 12–24V power supply.
Description
Other Power Features
Other Power Features
- Maximum Output: Up to 50W × 2 for L/R channels + 100W for subwoofer.
- High-Efficiency Class-D Amplification: Uses the TPA3116D2 amplifier chip for efficient and powerful audio performance.
- Wide DC Operating Voltage: Supports 12–24V DC, with higher voltage generally allowing higher output power.
- Recommended Power Supply: 5A or higher power supply recommended for high-power operation.
- Speaker Compatibility: Supports approximately 4–8Ω speakers, depending on operating conditions.
- Dedicated Subwoofer Channel: Provides up to 100W output for stronger low-frequency performance.
- Adjustable Subwoofer Frequency: Allows tuning of the subwoofer crossover according to the speaker setup.
- Independent Bass and Treble Adjustment: Enables detailed sound customization for a balanced listening experience.
- Bluetooth 5.0 + AUX Input: Supports both wireless and wired audio sources, with Bluetooth range up to about 10 m in unobstructed conditions.
- Built-in Protection: Includes over-voltage, under-voltage, overheating, DC detection, and short-circuit protection.
- Efficient Heat Dissipation: Equipped with a heatsink to help manage heat during higher-power operation.
- Compact DIY Design: Suitable for building or upgrading 2.1-channel home, desktop, and custom speaker systems.
