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🎶 Amplify your sound, elevate your space — don’t just listen, experience it!
The Walfront ZK-TB21 is a high-power 2.1 channel Bluetooth digital amplifier board delivering up to 100W output with versatile Bluetooth and AUX inputs. Designed for professional-grade audio setups, it supports a wide 12-24V DC voltage range and features comprehensive protection against electrical faults. Its compact, durable build ensures reliable, low-noise performance, making it an essential upgrade for audiophiles and tech-savvy millennials seeking premium sound with hassle-free connectivity.
| ASIN | B08GZBJWFZ |
| Best Sellers Rank | #15,306 in Electronics ( See Top 100 in Electronics ) #31 in Home Audio Amplifiers |
| Brand | Walfront |
| Brand Name | Walfront |
| Country Of Origin | China |
| Customer Reviews | 4.1 out of 5 stars 119 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 |
J**D
Best amplifier kit
I am happy 😊 these are the best items onbthis platform... really appreciate to the dealrs who are selling such nice products on Amazon. 👏🏻
R**A
Low noise , no heat clear sounds .
I love this product . Only problem is mount in amplifier case .
M**A
Great product
Amazing thing
J**Z
Tiene muy buen sonido
Funciona muy bien, tiene potencia y excelente sonido, le conecte unas bocinas vintage de 8 ohms y un subwoofer con una fuente de 12v 3A, está funcionando perfecto.
N**N
Best bang for buck
Works really well for the price. Was hard to find a 2.1 amp with a powered sub connection since they all have LFE sub out and cost twice as much as this. Works perfectly, just need to keep the volume knob less than 50% otherwise I get lots of background static. But even at that level, its plenty loud, could be because I'm using 8ohm bookshelf speakers. I love the fact it has individual control for sub freq/vol and L/R treble/bass as well. All these features in an amp this cheap/small is impossible to find these days.
J**A
Fun and functional
Do it yourself assembly. Fun, and functional. Thanks!
R**L
Impressive small but powerful .
This is a fantastic product — compact, powerful, and beautifully designed. It effortlessly drives 8Ω, 100-watt bookshelf speakers with clarity and strength. Truly impressive performance. ⭐️⭐️⭐️⭐️⭐️ (5/5)
M**E
The Best Amplifier for the Price but tainted by Amazon's Quality Control...
This Amplifier is a GOAT. Although Sub Frequencies below 20hz aren't there much, it's not an issue as I don't use it for DJ music but more EDM and Pop songs, and Rock. It Can Comfortably drive some overload with my 70 watt RMS Soundbird Full range drivers and a 150 Watt RMS Subwoofer with no issues. Though it may get hot with speakers over 50 watts of Load and below 4 ohms. But it's very good. The reason I gave it Four Stars is that the First delivery was horrible, with Broken parts, Missing accessories and damaged cover plates. Amazon, Please make your Quality Control in check.
Trustpilot
2 months ago
2 days ago