220V 12V 24V Bluetooth Audio Amplifier Karaoke Amplifier Hifi Stereo Digital Multi-purpose Car Subwoofer High Power Bass Power Amplifier Board

1. Press “MODE” button to switch it to Bluetooth status.

2. Open phone Bluetooth, search the Bluetooth device and connect.

3. You can use it after pairing successfully.

Description:

Type: Bluetooth Amplifier Board

Model: D5/D10/D30

Bluetooth Version: 5.0

Audio Channel: 1.0

Rated impedance: 4Ω

Rated Power: 40W

Power Range: 30-120W (Deponds on Voltage)

Distortion: 0.03%

S/N Rate: 92db

Battery of Remote: CR2025 x1(Not Included!)

Feature: FM Radio / Treble / Bass

Voltage: AC 110/220V, DC 12V/24V

Input: Bluetooth/3.5mm RCA/U-Disk/TF/MIC

TIPS:

1. Support AC 110V / 220V, automatic adaptation.

2. If connect to DC 12V-24V, the Current needs more than 3A.

3.This is not professional radio, no good effect, pls understand!

Warning: Pls select only one connection method !!!

To match the AMP and Speaker:

1. The impedance of the amplifier is the same as the speaker, can not be too far apart.

2. The power of the amplifier is 1.5 times than speaker to obtain a enough sense of strength.

=> If the output impedance of the amplifier requires 4-8Ω, the impedance of your speaker should also be 4~8Ω, the sound of 4 ohms is louder, and the 8 ohms is smaller;

=> If the output power of amplifier is 35W, the speaker should be around 20W. For 1.0 channel, the power is 20-30W, for 2.0 channel, it is 2x(20-30)W.

=> If the amplifier is full frequency, the wider the frequency response of the speaker, the better, such as 100~18KHz.

TIPS:

● The speakers must be based on impedance and power, regardless of dimensions.

● If the sound is intermittent or hoarse during increasing the volume, it means the speaker and amplifier are not matched, Pls use small sound or change a suitable speaker.

● Pls make sure that the required power supply is used and working properly.

Package Included:

1 * Digital Bluetooth Stereo Amplifier Board （optional）

1 * Remote control

2 * Audio Cable

1 * DC line

1 * Power supply cable