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🎶 Elevate your sound game — power, clarity, and wireless freedom in one sleek board!
The Walfront ZK-TB21 is a high-power 2.1 channel digital amplifier board featuring 50W output, Bluetooth and AUX inputs, and comprehensive protection circuits. Designed for compactness and durability, it suppresses AM interference and operates efficiently within a 12-24V supply range, making it ideal for professional-grade audio projects and upgrades.
| ASIN | B08GZBJWFZ |
| Best Sellers Rank | #12,034 in Electronics ( See Top 100 in Electronics ) #29 in Home Audio Amplifiers |
| Brand Name | Walfront |
| Country Of Origin | China |
| Customer Reviews | 4.1 4.1 out of 5 stars (106) |
| Included Components | inc |
| Manufacturer | Walfront |
| Material Type | Material |
| Maximum Supply Voltage | 24 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Model | TB21 |
| Mounting Type | Surface Mount |
| Number of Channels | 2 |
| Output Power | 50 Watts |
| Package Type Name | Box" (meaning 'Box' in Spanish) |
| 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
L**.
Esta muy bien, de calidad de audio pasable pero hay que ponerle una fuente de 24 v y 5 Amp para que funcione bien, si se le pone uno mas pequeño distorsiona mucho.
N**N
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
Do it yourself assembly. Fun, and functional. Thanks!
R**V
Works well. Worth the price tag. Can power upto 8 inch sub, frequency selection is roughly 30hz at minimum. Make sure to use a proper 19v or 24v power supply for the grunt. Noise from interference is there a little, more prominent when you dial the volume knob to max. But that's expected from bareboan amp boards like this. Make a proper chassis and ground it and we should be sorted with noise then. Choose soft tweeters has the treble can get harsh if dialled up. Mids and bass sounds slightly damped. But overall thisnis a great amp for small bookshelf and desktop speakers. Not sure about durability, which only time and usage style, care and luck will tell. Cheers!
A**R
Impressed with the power it puts out. Used it for a diy Bluetooth speaker. Bluetooth connection is easy and goes a long way.