ZK-LT21 LT23 50Wx2+100W 15Wx2+30W 2.1 BT5.1 Audio Dial Power Amplifier Board AMP Subwoofer Wuzhi Audio APP USB

Wuzhi Audio APP download link:

(This version of app is compatible with the operation of new products. Please download and update the app before using the product.)

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.

ZK-LT21:2.1 15W+15W+30W BT audio amplifier board module, BT 5.1+AUX+ USB disk + USB sound card input, left and right s + subwoofer output, stereo volume and subwoofer volume are adjusted respectively. Claic mechanical volume knob.

Wuzhi Audio APP can modify the BT name, paword settings, prompt tone volume adjustment, on/off prompt tone, lullaby, sound effect selection + custom sound effect, USB disk playlist function, open USB disk playlist, and select songs at will.

ZK-LT23:2.1 50W+50W+100W BT audio amplifier board module, new BT de chip, and USB disk support more high-definition lole formats. BT 5.1+AUX +USB disk + USB sound card input, left and right s + subwoofer output. The total volume, stereo volume and subwoofer volume are adjusted separately, with a wide adjustment range. The total volume knob is not only a claic mechanical volume knob, but also a multi-function on.Click:Play/Pause;Double click:Next song;Three clicks:Select or cancel the box matching mode

In addition to the BT name, paword setting, prompt tone volume adjustment, ON/OFF prompt tone, lullaby and other functions, the Wuzhi Audio APP adds upgrade function and box matching function.

Model: ZK-LT23

ZK-LT23 Product s

Brand: Wuzhi Audio

Model: ZK-LT23

Name: 2.1 50Wx2+100W subwoofer adjustment BT audio power amplifier

Amplifier chip: Chinese chip

BT version: 5.1

BT nsmiion distance: 10m

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

Audio output: Left & Right 50W + Subwoofer 100W

Adaptive power supply: DC9-24V，≥5A (Do not connect to AC)

Adaptive speaker:

Left & Right 10-50W, 4-8Ω;

Subwoofer 20-50W, 4-8Ω

Volume control: The total volume, stereo volume and subwoofer volume are adjusted separately, with a wide range of adjustment;

Total volume with on

Click:Play/Pause

Double click:Next

Three Click:Select or cancel the box matching mode

Protection mechanism: Over temperature, over-current, short circuit, anti-static protection

Characteristic function: Support Wuzhi Audio APP. Modify BT name, paword setting, volume adjustment of prompt tone, on/off prompt tone, sleep music, upgrade, etc.

Box matching function, the true wirele function enables the two sets of speakers to be combined into left and right boxes, with a stronger sense of spatial positioning.

Size: 75x70x20mm

Product weight: Net weight 78g，Weight with package 125g

ZK-LT23 Function introduction

① USB disk / USB sound card input

② AUX input

③ Left speaker

④ Right speaker

⑤ Subwoofer

⑥ Power input (5.5x2.1DC plug)

⑦ Subwoofer volume

⑧ Main volume

Multifunction on

Click:Play / Pause

Double click:Next

Three Click:Select or cancel the box matching mode

⑨ Subwoofer volume

ZK-LT23 Product details

① USB disk: Support more HD lole formats

② indicator

③ Work indicator

④ New BT de chip: Better parsing, support remote update, support function

⑤ Stereo volume

⑥ Main volume

⑦ Subwoofer volume

⑧ Subwoofer and stereo output volume are adjusted separately The total volume is a mechanical potentiometer, the volume position is clear at a glance, and the multi-function ons have rich functions

ZK-LT23 Box matching function

interconnection

Two power amplifiers are used together

Introduction to box matching function and operation:

1. Turn on two power amplifiers of the same model.

2. Select a power amplifier at will, and pre the total volume knob with key function inwards three times. At this time, the red indicator fes, and the other power amplifier is automatically paired with it as a stereo combination. (if the pairing is not succeful within 15 seconds, the pairing mode will be canceled automatically. You can try again by preing the key three times.)

3. If the pairing is succeful, the selected one will be aigned to the left , and the red indicator will always be on. The other one is the right , and the red indicator will f slowly.

4. The next time you start the machine, you will automatically find the right box. If you want to cancel the box matching mode, you only need to select a power amplifier and pre the on three times.

ZK-LT23 Installation Diagram

① Upper cover board

② M2*3 screw

③ Knob

④

⑤ M2*3 screw

⑥ Lower cover board

⑦ M2*3+3 copper ar

⑧ M2*14 copper ar

⑨ 22x9x12mm heat sink

Pasted on the power amplifier chip

⑩ Free

ZK-LT23 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]

ZK-LT23 Pack form

The shell needs to be aembled by yours

Model: ZK-LT21

ZK-LT21 Product s

Brand: Wuzhi Audio

Model: ZK-LT21

Name: 2.1 15Wx2+30W BT audio power amplifier with subwoofer

Adaptive Power supply: DC9~24 V , ≥3A (Do not connect to AC)

BT Version: 5.1

Amplifier chip: Chinese chip

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

Audio Output: R&L 15W*2; Subwoofer 30W

Volume Adjustment: Claic mechanical knob (with volume scale), steple adjustment

Switch Machine: Claic mechanical switch, one turn on and off, without long pre 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, overpreure is not allowed.

If the 4Ω speaker is driven, the power supply shall not exceed 12V.

ZK-LT21 Product Introduction

① AUX input

② Left speaker

③ Right speaker

④ Subwoofer

⑤ Power input (5.5X2.1 DC plug)

⑥ USB disk/USB sound card input

⑦ R&L volume knob

⑧ Subwoofer volume knob

ZK-LT21 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 22x9x12mm heat sink

Pasted on the power amplifier chip

⑩ Free

ZK-LT21 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]

ZK-LT21 Pack form