ZK-MT21 Bluetooth Power Amplifier Board 2.1 Channel 50W x 2 + 100W | Mini amp module. quickly connects. Fits car audio speakers/home theater. with bass,treble,subwoofer and volume control

The ZK-MT21 power amplifier board uses Bluetooth 5.0, and its transmission distance can reach 49 feet (without obstruction). At the same time, this power amplifier board has a 3.5mm AUX audio input interface. No matter what kind of input method, you can always find a method that suits you
With bass, treble, subwoofer frequency and volume control, easy to adjust volume, enjoy the music tone what you want. If you are tired of the inherent high & low bass, why not try the high & low control knob. This will make you feel like being in a movie theater
Bluetooth audio amplifier module 2.1 channel, Max output power 2X50W+100W. Speaker Matching Guide: Left & Right Channels (Stereo): 6.5 inch, 4-8 ohms, 50W each (Max. RMS); Subwoofer Channel (Bass): 8 inch, 4-8 ohms, 100W (Max. RMS)
ZK-MT21 Bluetooth power amplifier board has multiple protection mechanisms to ensure its safe operation. It has short circuit protection, over-current, over-heat, and anti-reverse protection(NOTE: It is recommended that the maximum voltage should not exceed 22V. Otherwise, overvoltage protection may be triggered, which will limit the output current and cause the maximum power to be reduced)
It adopts copper DC connector and fence type terminal. It can withstand large current, no heat, no damage to the wire. Using a universal 5.5mm * 2.1mm plug interface for power supply

Product Name	2.1 Channel Bluetooth Audio Amplifier Module
Model	ZK-MT21
Bluetooth Version	5.0
Audio Input	Bluetooth / AUX
Adapted Power Supply	DC 12-24V/5A or above (the higher the voltage, the greater the output power)

Adapted Speaker	20-100W, 4-8O
Output Power	Left and right channels(Stereo) = 50W, Subwoofer(Bass) = 100W
Protection	Overvoltage, undervoltage, overheating, short circuit protection
Product size	3.7 in×3.5 in×0.9 in/94 mm×90 mm×23 mm

Product Name	2.1 Channel Bluetooth Audio Amplifier Module
Model	ZK-MT21
Bluetooth Version	5.0
Audio Input	Bluetooth / AUX
Adapted Power Supply	DC 12-24V/5A or above (the higher the voltage, the greater the output power)
Adapted Speaker	20-100W, 4-8O
Output Power	Left and right channels(Stereo) = 50W, Subwoofer(Bass) = 100W
Protection	Overvoltage, undervoltage, overheating, short circuit protection
Product size	3.7 in×3.5 in×0.9 in/94 mm×90 mm×23 mm

ZK-MT21	ZK-TB21 TPA3116D2 Chips	ZK-HT21 TDA7498E Chips	ZK-AS21 TPA3255 Chips
Customer Reviews	Customer Reviews	Customer Reviews	Customer Reviews
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Price	Price	Price	Price
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Channel Type	Channel Type	Channel Type	Channel Type
2.1 channel	2.1 channel	2.1 channel	2.1 channel
Chip	Chip	Chip	Chip
generic chip	dual TPA3116D2	dual TDA7498E	dual TPA3255
Bluetooth Version	Bluetooth Version	Bluetooth Version	Bluetooth Version
5.0	5.0	5.0	5.1
Output Power	Output Power	Output Power	Output Power
50W+50W+100W	50W+50W+100W	160W+160W+220W	220W+220W+350W
Adapted Power Supply	Adapted Power Supply	Adapted Power Supply	Adapted Power Supply
DC 12-24V/5A or above	DC 12-24V/5A or above	DC15-36V/8A or above	DC18 - 38V/10A or above
Adapted Speaker	Adapted Speaker	Adapted Speaker	Adapted Speaker
15 - 100W, 4-8 ohms	20 - 200W, 4-8 ohms	30 - 200W,4-8 ohms	30 - 220W, 3-8 ohms

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