TB-21 +APP

TB21 WITH APP SUPPORT 2.1 AMPLIFIER

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Product Description:

TB21 2.1 Channel Amplifier – Key Details
TB21 2.1 TPA3116 Dual Chip Class D Amplifier Board With Bluetooth And AUX
Specifications
Output Power: 50W + 50W + 100W (Subwoofer) �
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Amplifier IC: TPA3116D2 Class-D �
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Channels: 2.1 Channel (Left + Right + Subwoofer) �
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Input Voltage: DC 12V–24V (24V recommended for maximum output) �
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Speaker Support: 4Ω–8Ω speakers �
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Inputs: Bluetooth 5.0 + AUX �
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Controls:
Master Volume
Bass
Treble
Subwoofer Volume
Subwoofer Frequency Control �
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Features ✅ Deep bass with dedicated subwoofer output
✅ Bluetooth music streaming
✅ Low distortion Class-D design
✅ Compact size, high efficiency
✅ Over-voltage, short-circuit and thermal protection �
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For Best Performance
Use 24V 5A–8A SMPS
4Ω speakers give higher output
Ideal for DIY home theater and bookshelf speaker projects
For your DENX AUDIO review video, you can mention:
🎵 TB21 2.1 Channel Amplifier Review
2×50W Stereo + 100W Subwoofer
Bluetooth 5.0 & AUX Input
TPA3116D2 Class-D Technology
Bass, Treble & Subwoofer Controls
Best Budget 2.1 Amplifier for DIY Home Theater 🔥
Daakro ZK-TB21 Bluetooth Amplifier Board,50W+50W+100W 2.1 Ch is one of the popular versions of this amplifier board.