About this product
Warranty TypeManufacturer Warrenty
Product description
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Speaker AC 220V 12V 24V Digital Bluetooth Stereo Amplifier Board Subwoofer Dual Microphone
Local playback: Supports reading MP3 songs from TF card and USB drive.
Wired connection: equipped with an AUX audio input interface, which can be connected to computers, mobile phones, CD machines and other devices.
Wireless connection: built-in Bluetooth receiver, supports wireless playback on mobile phones; integrated FM radio function.
The treble, bass and main volume can be adjusted independently.
Dual microphone input, support reverb effect adjustment (suitable for karaoke or speech scenes).
DC power supply: supports 12V~24V DC power supply, the current must be ≥3A (battery or adapter can be used).
AC power supply: compatible with 100V~240V AC power, and an 8-word power cable is required.
Digital amplifier, peak power of 400W, can drive 4Ω impedance, 100W electromagnetic speakers.
Adaptable to 8-12-inch speakers (speakers below 8-inch within the power range can also be used).
1x home US-regulated DC power cord
1. Bluetooth connection steps
Press the "MODE" key to switch to Bluetooth mode.
Turn on the Bluetooth phone, search for the device and select the Bluetooth name of the amplifier to pair.
If you need to enter the PIN code, please enter 0000 (no input is required for mobile phones that support simple pairing).
Expand the external antenna.
Press the "MODE" key to enter the radio mode.
Press the play button to automatically search and save the station, and press "Previous song/Next song" to switch the station.
Note: The audio effect is greatly affected by the signal, and it is recommended to use professional audio equipment externally.
3. Power wiring instructions
DC power supply: Connect to 12V or 24V DC power supply (current ≥3A).
AC power supply: Use an 8-word power cable to connect 100V~240V AC power.
Do not connect to AC and DC power supplies at the same time!
Do not touch the circuit board after powering on to prevent electric shock.
4. Speaker wiring suggestions
Woster: Connect to a woofer with a power of ≥100W and a magnet of ≥100g.
Tweeter: Can be connected to a 30W tweeter (requires series frequency divider capacitor).
Volume debugging: Turn down the main volume before starting the power and gradually increase it after starting.
If there is a break or interruption, it means that the speaker does not match the amplifier and the adaptive model needs to be changed.
Safety and maintenance tips
Power selection: Connect to a single power supply strictly according to the mark. Mixed use may cause damage to the equipment.
Speaker Matching: Avoid driving mismatched speakers at maximum volume for a long time to prevent overheating or distortion.
Antenna use: Make sure the antenna is fully unfolded and away from metal interference during radio reception. "
Please allow 0-1mm size errors due to manual measurement.
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