Bluetooth Amplifier Board Dual Microphone Karaoke for 8-12Inch Speaker DIY

Description

Subwoofer Digital Bluetooth Amplifier Board Dual Microphone Karaoke Amplifiers 12V 24V 220V For 8-12Inch Speaker DIY
F
or the sake of shipping safety,the battery is not included.You need to buy it in your side.
Product description:
Features:
1. Support reading MP3 songs in TF card and U disk;
2. Support independent adjustment of treble, bass and master volume;
3, DC 12V, 24V and AC100-240V three voltages can be used;
4, With AUX input, can be connected to the computer, mobile phone or CD audio to play;
5, Digital power amplifier, peak power 400W, can drive 4Ohm 100 magnetic speakers;
6, Dual microphone input, adjustable reverb;
built-in Bluetooth
wireless receiving and FM radio function.
Note:
The silk screen, color and layout of different batches may be a little different, whichever is the real thing.
How to use the Bluetooth function:
Press the “MODE” button to switch the machine to Bluetooth status, open the mobile phone Bluetooth, search for the Bluetooth device with the mobile phone, search for the product and click the Bluetooth name of the product to connect. After the connection is completed, you can receive the music played on the mobile phone.
Note:
Some mobile phones will prompt you to enter the PIX code. You can enter “0000” at this time (if the phone supports the easy pairing function, you do not need to enter the PIN)
Radio function operation instructions:
1. Hang up the radio antenna;
2. Press the MODE button to switch to the radio state;
3. Press the play button to search the entire channel and automatically save the station;
4, press the previous or next track to switch to the next or next station
Note:
The radio effect is not ideal, mainly for the radio, please buy a professional radio.
Panel function description:
1, LINE IX: external audio input, you can connect external sources such as computer, CD and mobile phone
2, USB: U disk socket
3, TF CARD: TF card socket
4, IR IN: external remote extension cable interface (if you do not connect, you can also remotely adjust the IR position)
5, "-" straight press is to reduce the MP3 volume, press to play the previous track
6, M: source switching button, each press to switch an input source signal
7, "+" - press and hold to increase the MP3 volume, press to play the next track
8, PL-LED: power indicator
9, IR: remote control signal receiver
10, POWER: power switch
11, DC12V/24V: DC socket
12, AC100V-240V: AC socket
13, BASS: bass adjustment
14, TREBLE: treble adjustment
15, VOLUME: master volume adjustment
16, ECHO: simple reverberation adjustment
17, MIC. V0L: simple volume adjustment
18, MIC: simple jack
Power Wiring Instructions (Please follow the instructions carefully to avoid unnecessary damage):
1. The panel DC12V/24V interface can be connected to DC 12V or DC 24V, and the current requirement is more than 3A (available battery or power adapter);
2, panel AC 100-240V interface can be connected to AC100V-240V AC power with 8 word power cable (not touch the circuit board after power on, so as to avoid electric shock).
Note:
The above power-on methods can be connected in any way, and cannot be accessed at the same time.
Wiring instructions:
1.
Connect the subwoofer:
connect a speaker with about 100 magnets or a speaker with about 100W:
2,
Connected to the tweeter:
can be connected to 30W tweeter
(
It can also be disconnected
)
（
Add a capacitor when the tweeter is connected
）
3.
Suitable for 8-12 inch speakers.
Note:
Please turn off the small master volume before power-on test. Then increase the volume slowly after power-on. If the sound is intermittent or the sound is hoarse and distorted during the process of increasing the volume, the speaker and the amplifier are not matched. Please use the small sound or change the package. The speaker is used.
Package included:
1PC decoder board +1PC remote control