Home theater, Bluetooth speakers, USB powered wired and wireless audio panels, TV, PC, laptop, 3D audio gaming system
47.08 18.99 $
     
ZK-MT21 2x50W+100W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12V 24V Audio Stereo 
Bluetooth-compatible 5.0 Bass Amp for Home Theater Speaker
 
    Feature: The Bluetooth-compatible audio power amplifier module has 2.1 channels and the maximum output power is 2X50W+100W. It has two audio input modes, AUX and Bluetooth-compatible, and a two-in-one power amplifier board. Bluetooth-compatible5.0, higher transmission efficiency, longer transmission distance It has short-circuit protection, over-current, over-heating, and anti-reverse protection to prevent total failure. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage It adopts copper DC connectors and barrier terminals. It can withstand high current without heating or damaging wires. Classic appearance multi-function main knob. The main knob adopts a rotary encoder that is only used in high-end power amplifiers, which realizes 360-degree stepless tuning and a smooth one-key start and stop. The operation is simple and convenient by long pressing the switch. With bass, treble, subwoofer frequency and volume control, you can easily adjust the volume and enjoy the music tone you want. It is widely used in shopping malls, home theaters, speakers, etc. Specification: Product name: 2.1 channel Bluetooth-compatible audio power amplifier module Product model: ZK-MT21 Bluetooth-compatible version: 5.0 (unobstructed, 15 meters) Input sensitivity: 500mV Input method: AUX+ Bluetooth-compatible Number of channels: 2.1 channels Power amplifier chip: Domestic power amplifier chip Adapter power supply: above DC12-24V/5A (24V battery pack is not allowed) Adapted speakers: 20-100W, 4-8Q Output power: left and right channels <50W; subwoofer <100W Protection mechanism: Anti-reverse connection, overheating, overcurrent, short circuit protection Product size: 93mm*90mm*22mm Product weight: about 130g Notice: The product can be connected with an external antenna, but does not include an antenna and an antenna base, please purchase it separately. Tip: Only when the audio input is enough and the power supply voltage/current is enough, there will be enough output power!!! The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!!! Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifier!!! Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.  
    
1 X Power Amplifier Board
 
    1 X Accessory Pack  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     
    
 
 
 
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Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.
Yes. We provide free shipping to over 200 countries around the world. However, there are some location we are unable to ship to. If you happen to be located in one of those countries we will contact you.
We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
If you can't find the estimated delivery time on the product detail page, you can look at the following table for reference.
Shipping time varies by location. These are our estimates:
| Location | *Estimated Shipping Time | 
|---|---|
| United States | 7-25 Business days | 
| Canada, Europe | 10-30 Business days | 
| Australia, New Zealand | 10-30 Business days | 
| Mexico, Central America, South America | 15-30 Business days | 
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For some shipping companies, it takes 2-5 business days for the tracking information to update on the system.
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you’ve specified combined shipping.
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