TB21 WITH APP SUPPORT 2.1 AMPLIFIER

TB21 2.1 TPA3116 Dual Chip Class D Amplifier Board With Bluetooth And AUX

Specifications

Output Power: 50W + 50W + 100W (Subwoofer) �

electroindia.in +1

Amplifier IC: TPA3116D2 Class-D �

electroindia.in +1

Channels: 2.1 Channel (Left + Right + Subwoofer) �

Robogears Private Limited

Input Voltage: DC 12V–24V (24V recommended for maximum output) �

electroindia.in +1

Speaker Support: 4Ω–8Ω speakers �

electroindia.in +1

Inputs: Bluetooth 5.0 + AUX �

electroindia.in +1

Controls:

Master Volume

Bass

Treble

Subwoofer Volume

Subwoofer Frequency Control �

MakerBazar.in +1

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 �

electroindia.in +1

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.