Daakro ZK-MT21 Bluetooth Amplifier Board,50W+50W+100W 2.1 Channel Subwoofer Amp Board with Treble/Bass/Sub Control,DC 9-24V, Bluetooth and AUX Inputs, DIY Wireless Speakers AMP Board, Password Free

Product description

Name: ZK-MT21 Amplifier Parameters

Product Description

Power Amplifier Chip：HiFi chip

Input Voltage: DC 12V-24V

Max Power Output: 50w+50w+100W

Input Method: Bluetooth & AUX；Channel: 2.1 CH Stereo Output

Output Impedance：4-8Ω；Bluetooth Version：BT 5.0

Multiple input modes, compatible with multiple devices

We have designed a variety of input modes for the ZK-MT21 power amplifier board. It includes Bluetooth mode, AUX mode. It can be connected to almost all playback devices you can think of, such as mobile phones, tablets, CD players, computers,etc.

Domestic Power Chip

This Bluetooth power amplifier board uses a HiFi high-fidelity power amplifier chips, and the power output of a single chip can reach 50W.

Large Heat Sink

The large heat sink can quickly release heat to ensure that the chip can stably output large-scale power and avoid damage to the chip.

High-grade Wiring Terminals

Make wiring more convenient without damaging the wires. 5.5mm * 2.1mm DC interface, suitable for most notebook power adapters.

Treble & Bass & Subwoofer

Allowing you to have more sound choices. A small amp can also create a small movie theater for you.

Warm Reminder

Warm Reminder:

The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug it for a long time, you can unplug the DC plug on the machine.

Comparison Chart

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Customer Reviews

4.5 out of 5 stars 105

4.4 out of 5 stars 46

4.4 out of 5 stars 66

3.8 out of 5 stars 19

3.8 out of 5 stars 11

4.2 out of 5 stars 14

Price

$21.99$21.99

$9.99$9.99

$15.99$15.99

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Channel Type

2.0 Chanel AMP

2.0 Chanel AMP

2.1 Chanel AMP

2.0 Chanel AMP

Mono Chanel AMP

2.0 Chanel AMP

Bluetooth Clip

Bluetooth 5.0

Bluetooth 5.0

Bluetooth 5.0

Bluetooth 5.3

Bluetooth 5.3

Bluetooth 5.0

Amplifier Clip

TDA7498E

Amp Clip

Amp Clip

TPA 3110 D2

TPA 3110 D2

Amp Clip

MAX Power

160W+160W

50W+50W

50W+50W+100W

30W+30W

30W

50W+50W

Input

BT/USB/AUX

BT/AUX

BT/AUX

BT/USB/AUX

BT/USB/AUX

BT/AUX

Output

Passive Speakers

Passive Speakers

Passive Speaker+Active Sub

Passive Speakers

Passive Speakers

Passive Speakers

THD

0.10%

0.10%

0.10%

0.10%

0.10%

0.10%

SNR

90DB

90DB

90DB

92DB

92DB

92DB

Terminating Impedance

4-8 Ohm

4-8 Ohm

4-8 Ohm

4-8 Ohm

4-8 Ohm

4-8 Ohm

DC Working Voltage

15V-36V

9V-24V

9V-24V

9V-24V

9V-24V

9V-24V

[Dual HiFi Chip]Daakro ZK-MT21 Bluetooth Amplifier Board uses two HiFi amplifier chip with PurePath technology for ultra-high resolution, ultra-low distortion and high-fidelity sound quality. Supports 2.1-channel configuration, including left channel, right channel and subwoofer output. The left and right channels each provide 50W output power, and the subwoofer can reach a maximum output power of 100W, creating an immersive sound experience.
[Dual Audio Input Modes] This amplifier board integrates AUX and Bluetooth 5.0 input methods. You can seamlessly connect with the latest Bluetooth 5.0 technology and enjoy the convenience of wireless, or you can choose the traditional AUX input connection to access the audio source. The vast majority of devices can be used, such as mobile phones, TVs, laptops, etc. It is very easy to connect and use, enjoy the fun of music.
[Wide Application]The Daakro ZK-MT21 amplifier board supports a wide input voltage range from 9V to 24V DC, and can be powered by 9V,12V, 15V, 18V, or 24V. This adaptability ensures that you can easily find the right power source. The board is suitable for 30-200W, 4-8Ω speakers, and can be perfectly matched with speakers of all sizes. Whether it is a small speaker or a large audio equipment, it can be coordinated with the amplifier board.
[Comprehensive Protection]The Daakro ZK-MT21 Bluetooth Amplifier Board has a comprehensive built-in protection mechanism, including over-voltage protection, under-voltage protection, over-temperature protection, short-circuit protection and reverse connection protection. These smart protection features ensure that your device is protected in every situation, so you can enjoy your music with confidence.
[Optimal Power Matching]Note that optimal audio output requires the correct combination of adequate audio input with appropriate power supply voltage and current. Different loudspeaker impedances affect relative sound power. A loudspeaker with a higher impedance will produce less relative sound power with sufficient voltage and current. Please be aware of these factors to optimize your audio experience.

Product summary

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