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🎶 Elevate your sound game — power, control, and connectivity in one sleek amp!
The ZK-MT21 Bluetooth Power Amplifier Board is a compact yet powerful 2.1 channel audio module delivering 200W total output (50W×2 + 100W subwoofer). It supports multiple inputs including Bluetooth, AUX, and USB, and features independent treble and bass controls for a customizable audio experience. Designed with advanced protection mechanisms and a wide 12-24V voltage range, it’s ideal for custom speaker projects and portable setups seeking high-fidelity sound with reliable performance.




| ASIN | B0DTYQQYRF |
| Best Sellers Rank | #69,900 in Electronics ( See Top 100 in Electronics ) #420 in Audio Component Amplifiers |
| Brand Name | DAJUNGUO |
| Customer Reviews | 4.5 out of 5 stars 52 Reviews |
| Included Components | amplifier board |
| Item Dimensions | 4.4 x 3.9 x 0.87 inches |
| Item Weight | 210 Grams |
| Item dimensions L x W x H | 4.4 x 3.9 x 0.87 inches |
| Manufacturer | DAJUNGUO |
| Maximum Supply Voltage | 24 Volts |
| Minimum Supply Voltage | 12 Volts |
| Model | ZK-TB21 |
| Mounting Type | Freestanding |
| Number of Channels | 3 |
| Output Power | 200 Watts |
| Part Number | ZK-TB21 |
| Supply Current | 5 Amps |
| UPC | 194852394124 |
| Voltage | 24 Volts (DC) |
H**R
Very happy with it
I’ve been using this amp for a close to a year and it connects fast works great it was cheap and works better than most high end amps I’ve gotten very impressed
J**O
Chiquito pero poderoso
No pensé que esta cosa trabajara tan bien
A**S
Nice
Really good I just need to get a better power cord
R**A
Balance de calidad precio
Suena bien pero no es muy potente en volumen, para el precio que tiene esta bien para tener como opción de sonido en pc o música en la habitación.
N**Z
Great sound
Work great and sound is quality for such a low price
N**S
10/10
Muy buena calidad en los medios y altos. Excelente producto
M**K
50/50 if it works
This is definitely a good unit from what I am told, unfortunately the one I got seems to be Dead on arrival, the sound is intermittent, it's not my cables or speakers either, they all work fine on a different amp. From the looks of it, I'm not sure if it was just bad, or if I somehow got a returned item?
A**Z
Después de varios intentos es es que funciona bien
Muy bueno para el precio
S**N
Excellent
Work very fine
A**A
JUST QUALITY SOUND
CLEAR SOUND QUALITY...OSM SOUND
S**S
Don't buy
Third class product. Very bad impression
U**N
Average bass sound quality
Bass regulation and frequency adjuatments are worst. I am trying to adjust it for punchy bass but i was getting more vibrations than punch.
Trustpilot
3 weeks ago
1 week ago