ZK-R502H R502E R302 50W*2+100W TPA3116D2 2.1 2.0 BT 5.1 Audio Amplifier Power Subwoofer AMP Wuzhi Audio

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.

This series of BT audio amplifier board has high-definition sound quality, cool indicator light, BT 5.1 + AUX input + USB disk play + USB sound card and various audio input modes.

ZK-R21H:2.1 BT audio amplifier, 50W + 50W + 100W subwoofer, TPA3116D2 power amplifier chip, main volume + subwoofer volume adjustment + stereo volume adjustment.

ZK-R21E:2.1 BT audio amplifier, 50W + 50W + 100W subwoofer, Chinese power amplifier chip, main volume + subwoofer volume adjustment + stereo volume adjustment.

ZK-R502H:2.0 BT audio power amplifier, 50W + 50W stereo, and ba adjustment, TPA3116D2 power amplifier chip, main volume + adjustment + ba adjustment.

ZK-R502E:2.0 BT audio power amplifier, 50W + 50W stereo, and ba adjustment, Chinese power amplifier chip, main volume + adjustment + ba adjustment.

ZK-R302:2.0 BT audio power amplifier, 30W + 30W stereo, and ba adjustment, TPA3118 power amplifier chip, main volume + adjustment + ba adjustment.

Product s

Brand: Wuzhi Audio

Name: BT audio power amplifier

Amplifier chip:

R21H:TPA3116D2

R21E:Chinese chip

R502H:TPA3116D2

R502E:Chinese chip

R302:TPA3118

BT version: 5.1

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

Audio output:

R21H and R21E:Left 50W+Right 50W+Subwoofer 100W

R502H and R502E:Left 50W+ Right 50W

R302:Left 30W + Right 30W

Adaptive power supply:

R21H and R21E:DC9-24V, ≥7A

R502H, R502E and R302:DC9-24V, ≥3A, (Do not connect to AC)

Adaptive speaker:

R21H and R21E:Left & Right 15-50W, 4-8Ω; Subwoofer 30-100W, 4-8Ω

R502H, R502E and R302:10-50W, 4-8Ω

Volume adjustment: multi-function knob, 360 degree steple tuning, with volume level indication.

Click:Play/ Pause

Double click:mode switch (BT, USB f disk, AUX)

Long pre for 1 second:ON/OFF

Rotate:adjust volume

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

Characteristic function: Support Wuzhi Audio APP. Modify BT name, paword setting, prompt tone volume adjustment, on/off prompt tone, lullaby, sound effect selection + custom sound effect, USB f disk playlist, volume indicator brightne adjustment.

Size:

R21H andR21E:81x81x37mm

R502H, R502E and R302:81x81x34mm

Product weight:

R21H:Net weight 106g, Weight with package 150g

R21E:Net weight 85g, Weight with package 129g

R502H:Net weight 81g, Weight with package 130g

R502E:Net weight 78g, Weight with package 127g

R302:Net weight 77g, Weight with package 126g

High end audio experience

① Volume level indicator

② Volume indication is synchronized with app

③ App can set 8 levels of brightne

④ Note: Plug free installation. The copper column is used as the connecting wire. Try not to clamp the two copper columns by hand when adjusting the volume, otherwise the normal display may be affected.

Introduction to knob operation

PAUSE:

Click:Play /Pause

MODE:

Double click: mode switch (BT, USB f disk, AUX)

ON/OFF:

Long pre: long pre for 1 second to turn ON/OFF

Wuzhi Audio voice of brand

Born for music fever

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.

R502H Product details

① LC filter circuit, HD restore

② TPA3116D2

R502H Function introduction

① USB disk /USB sound card input

② Multifunction knob：

Rotate: Adjust volume

Click: Play / Pause

Double click: Mode switch(BT, USB disk, AUX)

Long pre for1 second: ON/OFF

③ Left speaker

④ Power input (5.5x2.1DC plug)

⑤ Right speaker

⑥ Volume level indicator

⑦ knob

⑧ AUX input

⑨ Ba knob

R502H Installation diagram

① knob

② Upper cover board

③ Knob

④ M2*3 screw

⑤ Ba knob

⑥

⑦ M2*12 copper ar

⑧ M2*3+3 copper ar

⑨ M2*3 screw

⑩ Lower cover board

⑪ 20x18x10m heat sink

Pasted on the power amplifier chip

⑫ Free

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]

Pack form