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🎶 Power your space with precision and style — don’t just listen, dominate the soundscape!
The Walfront ZK-TB21 is a high-power 2.1 channel Bluetooth digital amplifier board featuring a TPA3116D2 chip with AM interference suppression. It supports Bluetooth 5.0 with a 10-meter range, delivers up to 50W per stereo channel and 100W to the subwoofer, and operates on a 12-24V DC power supply. Designed for durability and safety, it includes multiple protection mechanisms and a compact form factor ideal for professional and DIY audio setups.




| ASIN | B08GZBJWFZ |
| Best Sellers Rank | #4,472 in Electronics ( See Top 100 in Electronics ) #2 in Home Audio Amplifiers |
| Brand | Walfront |
| Brand Name | Walfront |
| Country Of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 118 Reviews |
| Included Components | inc |
| Manufacturer | Walfront |
| Material Type | Material |
| Maximum Output Power | 100W |
| Maximum Supply Voltage | 24 Volts (DC) |
| Maximum supply voltage | 24 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Minimum supply voltage | 12 Volts (DC) |
| Model | TB21 |
| Mounting Type | Surface Mount |
| Mounting type | Surface Mount |
| Number of Channels | 2 |
| Number of Items | 2 |
| Number of Packs | 2 |
| Output Power | 50 Watts |
| Package Type Name | Box" (meaning 'Box' in Spanish) |
| Part Number | TB21 |
| Specification Met | FCC |
| Supply Current | 5 Amps |
| Voltage | 24 Volts |
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