Wuzhi Audio APP download link:
http://www.qingdaowuzhi.cn/btapp/Wuzhi_Audio_V1.0.1.apk
Note!
It needs to be assembled by yourself, 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 make sure you don't mind.
ZK-152, ZK-152T, ZK-302, ZK-302T, the four products are 2.0 channel BT digital power amplifier module. ZK-LT21 is 2.1 channel BT audio digital power amplifier board module.
The five products have a variety of audio input modes, BT 5.1 input, AUX input, USB flash disk input and USB sound card input. Using the classic mechanical switch, one can turn on and off the machine without long pressing and waiting to see the indicator light. The volume adjustment adopts the classic mechanical knob with volume scale to achieve stepless adjustment. Support Wuzhi audio app.
ZK-152 is 15W + 15W stereo output.
ZK-152T is 15W + 15W stereo output with treble and bass adjustment.
ZK-302 is 30W+30W stereo output.
ZK-302T is 30W+30W stereo output with treble and bass adjustment.
ZK-LT21 is 15W+15W+30W output with Subwoofer.
Wuzhi Audio APP is an audio app with timed shutdown function. It has its own sound scene, 10 kinds of natural sounds and up to 1023 sound combinations. Comprehensive functions: you can modify the BT name of each product. Set the BT connection password. You can adjust the volume of the prompt tone. The switch prompt tone can be turned on or off. USB flash disk playlist function, open USB flash disk playlist, select music at will, and support shaking to switch songs. Support customized 10 segment sound effects and arbitrary adjustment to make up for deficiencies, so that different speakers can achieve better sound effects.
Model：ZK-152
Brand: Wuzhi Audio
Model: ZK-152
Name: 2.0 channel 15Wx2 Stereo BT audio power amplifier
Adaptive Power supply: DC9~24V , ≥2A (Do not connect to AC)
BT Version: 5.1
Audio Input: AUX + BT+USB disk + USB sound card
Audio Output: Left channel 15W+right channel 15W
Volume Adjustment: Classic mechanical knob (with volume scale), stepless adjustment
Switch Machine: Classic mechanical switch, one turn on and off, without long press and wait.
Adapter Speaker: 5-30W 4-8Ω
Protection Mechanism: Overheating, overcurrent, short circuit, anti-static protection
Product Size: 71*50*20mm
Product Weight: about 40g
Package Weight: about 76g
Note: it is recommended to equip with 8Ω speaker and power supply of 9-24VDC. Overpressure is not allowed.
If the 4Ω speaker is driven, the power supply shall not exceed 12V.
Model：ZK-152T
Brand: Wuzhi Audio
Model: ZK-152T
Name: 2.0 channel 15Wx2 BT audio power amplifier with treble and bass tone
Adaptive Power supply: DC9~24V , ≥2A (Do not connect to AC)
BT Version: 5.1
Audio Input: AUX + BT+USB disk + USB sound card
Audio Output: left channel 15W+right channel 15W
Volume Adjustment: Classic mechanical knob (with volume scale), stepless adjustment
Switch Machine: Classic mechanical switch, one turn on and off, without long press and wait.
Adapter Speaker: 5-30W 4-8Ω
Protection Mechanism: Overheating, overcurrent, short circuit, anti-static protection
Product Size: 71*60*20mm
Product Weight: about 62g
Package Weight: about 98g
Note: it is recommended to equip with 8Ω speaker and power supply of 9-24V DC. Overpressure is not allowed.
If the 4Ω speaker is driven, the power supply shall not exceed 12V.
Model：ZK-302
Brand: Wuzhi Audio
Model: ZK-302
Name: 2.0 channel 30Wx2 BT audio power amplifier
Adaptive Power supply: DC9~24V, ≥3A (Do not connect to AC)
BT Version: 5.1
Audio Input: AUX + BT+U disk + USB sound card
Audio Output: Left channel 30W+right channel 30W
Volume Adjustment: Classic mechanical knob (with volume scale), stepless adjustment
Switch Machine: Classic mechanical switch, one turn on and off, without long press and wait.
Adapter Speaker: 10-50W 4-8Ω
Protection Mechanism: Overheating, overcurrent, short circuit, anti-static protection
Product Size: 76*50*18mm
Product Weight: about 45g
Package Weight: about 82g
Note: it is recommended to equip with 8Ω speaker and power supply of 9-24VDC. Overpressure is not allowed.
If the 4Ω speaker is driven, the power supply shall not exceed 12V.
Model：ZK-302T
Brand: Wuzhi Audio
Model: ZK-302T
Name: 2.0 channel 30Wx2 BT audio power amplifier with treble and bass tone
Adaptive Power supply: DC9~24 V, ≥3A (Do not connect to AC)
BT Version: 5.1
Audio Input: AUX + BT+U disk + USB sound card
Audio Output: Left channel 30W+right channel 30W
Volume Adjustment: Classic mechanical knob (with volume scale), stepless adjustment
Switch Machine: Classic mechanical switch, one turn on and off, without long press and wait.
Adapter Speaker: 10-50W, 4-8Ω
Protection Mechanism: Overheating, overcurrent, short circuit, anti-static protection
Product Size: 76*60*20mm
Product Weight: about 71g
Package Weight: about 106g
Note: it is recommended to equip with 8Ω speaker and power supply of 9-24VDC. Overpressure is not allowed.
If the 4Ω speaker is driven, the power supply shall not exceed 12V.
Model：ZK-LT21
Brand: Wuzhi Audio
Model: ZK-LT21
Name: 2.1channel 15Wx2+30W BT audio power amplifier with subwoofer
Adaptive Power supply: DC9~24V ,≥3A (Do not connect to AC)
BT Version: 5.1
Audio Input: AUX + BT+USB disk + USB sound card
Audio Output:
R&L channel 15W*2;
Subwoofer 30W
Volume Adjustment: Classic mechanical knob (with volume scale), stepless adjustment
Switch Machine: Classic mechanical switch, one turn on and off, without long press and wait.
Adapter Speaker: 10-50W 4-8Ω
Protection Mechanism: Overheating, overcurrent, short circuit, anti-static protection
Product Size: 76*60*22mm
Product Weight: about 66g
Package Weight: about 102g
Note: it is recommended to equip with 8Ω speaker and power supply of 9-24VDC. Overpressure is not allowed.
If the 4Ω speaker is driven, the power supply shall not exceed 12V.
ZK-152 Product Introduction
① AUX input
② Left channel
③ Right channel
④ Power input (5.5X2.1DC plug)
⑤ USB flash disk/USB sound card input
⑥ Mechanical volume knob
ZK-152T Product Introduction
① Volume knob
② Bass knob
③ Treble knob
④ USB flash disk/USB sound card input
⑤ AUX input
⑥ Right channel
⑦ Left channel
⑧ Power input (5.5X2.1DC plug)
ZK-302 Product Introduction
① AUX input
② Left channel
③ Right channel
④ Power input (5.5X2.1DC plug)
⑤ USB flash disk/USB sound card input
⑥ Mechanical volume knob
ZK-302T Product Introduction
① Volume knob
② Bass knob
③ Treble knob
④ USB flash disk/USB sound card input
⑤ AUX input
⑥ Right channel
⑦ Left channel
⑧ Power input (5.5X2.1DC plug)
ZK-LT21 Product Introduction
① AUX input
② Left channel
③ Right channel
④ Subwoofer
⑤ Power input (5.5X2.1DC plug)
⑥ USB flash disk/USB sound card input
⑦ R&L channel volume knob
⑧ Subwoofer volume knob
ZK-152 Installation Diagram
① M2*3 screw
② Upper cover board
③ Knob
④ M2*12 copper pillar
⑤ M2*3+3 copper pillar
⑥ M2*3 screw
⑦ Lower cover board
⑧ PCB
⑨ Free
ZK-152T Installation Diagram
① M2*3 screw
② Upper cover board
③ Knob
④ M2*3+3 copper pillar
⑤ M2*3 screw
⑥ Lower cover board
⑦ PCB
⑧ M2*14 copper pillar
⑨ Free
ZK-302 Installation Diagram
① M2*3 screw
② Upper cover board
③ Knob
④ M2*12 copper pillar
⑤ M2*3+3 copper pillar
⑥ M2*3 screw
⑦ Lower cover board
⑧ PCB
⑨ Free
ZK-302T Installation Diagram
① M2*3 screw
② Upper cover board
③ Knob
④ M2*3+3 copper pillar
⑤ M2*3 screw
⑥ Lower cover board
⑦ PCB
⑧ M2*14 copper pillar
⑨ Free
ZK-LT21 Installation Diagram
① M2*3 screw
② Upper cover board
③ Knob
④ M2*16 copper pillar
⑤ M2*3+3 copper pillar
⑥ M2*3 screw
⑦ Lower cover board
⑧ PCB
⑨ Free
Lullaby music allows you to return to nature, help you sleep, decompress 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 multiple products can be easily identified.
Change BT password:
The BT connection password can be modified to prevent others from hijacking.
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 flash disk playlist function:
Open the playlist of USB flash disk, select music at will, and support shaking to switch songs.
Wuzhi Audio APP Sound Function
Wuzhi Audio APP has popular, classical, jazz, country, natural, rock and other sound effects. It supports custom 10 segment sound effects and arbitrary adjustment to make up for deficiencies, so that different speakers can achieve better sound effects.
Classic mechanical volume knob
Turn the knob to switch the machine on and off, no need to press and wait to see the indicator light.
Timeless place of classic mechanical volume knob:
1. With volume scale, you can know the current volume. The digital 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 pressing and waiting, which is convenient and fast.
4. The real stepless tuning is not digital multi-stage grading adjustment.
APP Setting Interface
BT name modification steps:
[enter a new BT name] → [click set button] → [system automatic restart] → [cancel pairing of mobile BT with the original BT name] → [find a new BT name and re pair]
BT password setting steps:
Method 1:
[turn on BT password switch] →Use default password 1111
Method 2:
[turn on BT password switch] → [enter password] → [click the setting button] → [the system will restart automatically] → [cancel pairing, and you will be prompted to enter password when connecting again]