ZK-MT21S 2*50W+100W 2.1 BT5.1 Audio Power Amplifier Board Subwoofer Midrange Wuzhi Audio APP AMP USB AUX

Wuzhi Audio APPdownload link：

http://www.qingdaowuzhi.cn/appdownload/Wuzhi_Audio.apk

Note:

It needs to be aembled by yours, and the material package is given a screwdriver.

The suitable power supply of the product is DC power supply, and AC power supply is not allowed!

The color of the product may be slightly different from the picture due to the differences of light, angle and shooting equipment.

The product size is measured manually. Please allow slight deviation in the measurement data and e sure you don't mind.

Product features

1.Chinese chip, high cost performance, pure and nsparent, HD sound quality.

2.Support ba, midrange and adjustment.

3.BT, AUX, USB f disk, USB sound card input.

4. The midrange is clearer and more nslucent.

5.High end , supporting up and down song switching and selection mode.

6.Mechanical volume knob, once turned on / off, there is no need to pre and wait to see the indicator light. True steple tuning.

7.Support Wuzhi Audio APP, APP comes with situational music, support to modify BT name, set BT paword, prompt tone, volume adjustment / switch prompt tone, Lullaby + timed shutdown, sound effect adjustment, support to customize 10 sound effects, which can be adjusted arbirily. USB f disk, music selection, playlist.

Wuzhi Audio Voice of brand

Born for music fever

Claic appearance, increasing the high-end experience of rotary .

The stereo adds midrange adjustment, and the adjustment range of subwoofer, midrange and sound effects is fully covered.

Product s

Brand: Wuzhi Audio

Product Name: 2.1 BT power amplifier

Product Model: ZK-MT21S

Amplifier Chip: Chinese chip

s: 2.1 (left + right + subwoofer)

Audio Input: AUX + BT + USB disk + USB sound card

BT Version: 5.1

Switching Mode: Mechanical switch (without long pre and wait)

Adaptive Power supply: DC12~24V , ≥8A (Do not connect to AC)

Adapter Speaker:

L&R s 20-50W, 4-8Ω

Subwoofer 20-100W, 4-8Ω

Output power:

R&L ≤50W

subwoofer≤100W

Protection Mechanism: Input anti re connection, overheating,  overcurrent and short circuit protection

Product Size: 93*96*22mm

Product Weight: about 136g

Package Weight: about 187g

Tip: when the audio signal input is large enough and the power supply voltage / current is large enough, there will be enough output power!

The higher the power supply voltage, the greater the output power, the smaller the speaker impedance, and the greater the output power!

Please ensure that the power of the adaptive power supply is greater than the actual working power of the power amplifier!

Product main functions

①Power input (5.5x2.1mm DC plug)

②Subwoofer

③Left

④Right

⑤USB disk/USB sound card input

⑥AUX input

⑦

Long pre:mode switching

Short pre:play / pause

Rotating:switching songs

⑧Subwoofer volume/ba

⑨Left and right Alto

⑩Left and right

⑪Total volume/switch

*Built in subwoofer frequency adjustment potentiometer.

Wuzhi Audio APP Sleeping Music

Lullaby music allows you to return to nature, help you sleep, decompre and heal your body and mind. Wuzhi Audio APP has the function of regular shutdown.

10 natural sounds are Sound bowl, Stream, Wave, Sea wave, Thunderstorm, Bird song, Cry of insects, Frogs, Bonfire, Guqin, up to 1023 sound combinations.

10 kinds of natural sounds create unique natural sound scenes, create a natural atmosphere, quickly calm your mood and realize deep sleep.

Wuzhi Audio APP Function

Change BT name:

The BT name of each product can be changed, and multe products can be easily identified.

Change BT paword:

The BT connection paword can be modified to prevent others from hiing.

This function can be turned off.

Adjust the volume of prompt tone:

The volume of prompt tone can be adjusted to meet different needs of customers.

ON / OFF prompt tone:

The prompt tone can be turned on or off.

USB f disk playlist function:

Open the playlist of USB f disk, select music at will, and support shaking to switch songs.

Wuzhi Audio APP Sound Function

Wuzhi Audio APP has popular, claical, jazz, country, natural, rock and other sound effects. It supports custom 10 segment sound effects and arbiry adjustment to e up for deficiencies, so that different speakers can achieve better sound effects.

high end experience

①Increase the high-end experience of rotary ,  which is convenient and fast without switching up and down songs and modes by mobile phone

② Subwoofer

③ Alto

④

The stereo adds midrange adjustment, the adjustment range of subwoofer, midrange and sound effects is fully covered, the human voice is prominent, and the sound is more nsparent.

AUX intelligent noise elimination proceing

① Built in subwoofer frequency adjustment to avoid random frequency change.

② AUX IN:

AUX intelligent noise elimination proceing reduces the bottom noise problem caused by audio line interference.

③ USB IN:

Add USB f disk interface, rotate to cut songs freely, and app supports USB f disk song selection and song playing display.

Claic mechanical volume knob

Turn the knob to switch the machine on and off, no need to pre and wait to see the indicator light.

After power off, BT turns off and enters low power consumption mode.

Timele p of claic mechanical volume knob:

1.With volume scale, you can know the current volume. The dial tuning position is unknown. I don't know the current volume. I will be startled by the sudden loud volume when I turn on.

2.Turn it off when the volume is turned to the lowest, which is not easy to damage the speaker and power amplifier.

3.The mechanical switch turns off without long preing and waiting, which is convenient and fast.

4.The real steple tuning is not dial multi-stage grading adjustment.

APP Setting Interface

BT name modification steps:

[enter a new BT name] → [click set on] → [system automatic restart] → [cancel pairing of mobile BT with the BT name] → [find a new BT name and re pair]

BT paword setting steps:

Method 1:

[turn on BT paword switch] →Use default paword 1111

Method 2:

[turn on BT paword switch] → [enter paword] → [click the setting on] → [the system will restart automatically] → [cancel pairing, and you will be prompted to enter paword when connecting again]

Installation example of external

① Example of base welding

② base

③ 2.4G

④ Example of welding

Note: The and base should be purchased by yours.

Installation Diagram

① M2*3 screw

② Upper cover board

③ Knob

④ M2*16 copper ar

⑤ M2*3+3 copper ar

⑥ M2*3 screw

⑦ Lower cover board

⑧

⑨ Free screwdriver and terminal

Pack form