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CA-MT21 2.1 Channel BT 5.0 Subwoofer Amplifier Board 2*50W+100W 12-24V AMP+BT

Name: CA-MT21 2.1 Channel BT 5.0 Subwoofer Amplifier Board 2*50W+100W 12-24V AMP+BT
Brand: Shenzhen Creatall Electronics Co., Ltd.
SKU: CA-MT21
Price: 8.60 USD
Availability: InStock

Brand Name:	creatall
Model Number:	CA-MT21
MOQ:	10 pieces
Price:	$7.60/pieces 10-99 pieces

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

Guangdong, China

Name:

CA-MT21 Amplifier Board

Power:

2*50W+100W

Channel:

Car Bass Tube With Amplifier

Highlight:

2.1 channel amplifier board with Bluetooth 5.0

MT21 amplifier board supplier

wholesale amplifier board supplier

Product Description

Products Description

ZK-MT21 2x50W+100W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12V 24V Audio Stereo BT-compatible 5.0 Bass Amp for Home Theater Speaker

Feature:
The BT-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 BT-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 BT-compatible audio power amplifier module
Product model: ZK-MT21
BT-compatible version: 5.0 (unobstructed, 15 meters)
Input sensitivity: 500mV
Input method: AUX+ BT-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.

Contact us
Wechat:	zq13827494627	Mobile:	+86-13827494627
Skype:	alvacheng1	E-mail:	leo@creatall.com

CA-MT21 2.1 Channel BT 5.0 Subwoofer Amplifier Board 2*50W+100W 12-24V AMP+BT

Ratings & Review

Overall Rating

4.5

Based on 50 reviews for this product

Rating Snapshot

The following is the distribution of all ratings

5 stars

50%

4 stars

50%

3 stars

2 stars

1 stars

All Reviews

Jan

Netherlands Dec 31.2025

Helpful (45)

This CA-MT21 amplifier is good overall—Bluetooth works fine and sound quality is decent. The bass is a little softer than I hoped for, but it’s still satisfying for daily use.

Rahul

India Oct 26.2025

Helpful (168)

The CA-MT21 amplifier board is amazing. Bluetooth 5.0 connects in seconds, the bass is deep, and it handles 24V power without any heat issues. Perfect for my DIY speaker system.

Tags:

Amplifier Board Module

Power Supply Module

Bluetooth Audio Module

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Home Amplifier

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Amplifier Board Module

Power Supply Module

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BMS Battery Protection Board

Home Amplifier

Car Player

LED TV Parts

Digital Ammeter Voltmeter

Digital Humidity Controller

Tester Tool

Development Board

products details

CA-MT21 2.1 Channel BT 5.0 Subwoofer Amplifier Board 2*50W+100W 12-24V AMP+BT

2.1 channel amplifier board with Bluetooth 5.0

MT21 amplifier board supplier

wholesale amplifier board supplier

Overall Rating

Rating Snapshot

All Reviews