The power amplifier is connected correctly, why is there noise such as electric current?

Please check whether there is current sound when no load. And confirm that the surrounding current signals will not cause interference. Please make sure all the cable completely pushed into the device, incompletely connections will create distorted.

Why only one channel work ? Is it defective?

Since the amplifier is not used alone, it needs to be used together with other electronic equipment, so it needs to be ruled out one by one! Are the positive and negative wires connected to the speaker connected together?

If you find that the Bluetooth connection is unstable, you can try the following steps to solve it.

Make sure there are no obstacles (especially metals) blocking the signal. Turn off the power amplifier, disconnect and clear the connection of the Bluetooth transmitting device, and try to reconnect.

Can you connect two devices with bluetooth?

No, connecting two at the same time will cause the audio stream to be disrupted. It can only be disconnected and then connected to other devices.

How to connect to a bluetooth speaker?

The Bluetooth speaker is a Bluetooth receiver, which is the same as the Bluetooth function of the power amplifier, and the Bluetooth speaker already has a small power amplifier, which may cause burn-in after being amplified by other power amplifiers.

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Sunbuck Bluetooth 5.0 Audio Amplifier, 2 Channel Compact Stereo System, 250Wx2, RCA/USB/FM, Speaker Receiver AS-29BU

Product ID: 145220467

Details

Audio Encoding
Stereo
Audio Output Mode
Stereo
Brand
Sunbuck
Compatible Devices
Smartphone
Connectivity Technology
Bluetooth RCA
Connector Type
RCA USB 2.0

📡Bluetooth 5.0 seamless pairing

🔊500W peak power output

🎛️6 versatile input options

Description

🎶 Elevate your soundscape—compact power, endless vibes.

PLUG PLAY CONTROL - Intuitive LED display and remote control put volume and source selection at your fingertips.
COMPACT YET COMMANDING - Sleek, space-saving design fits perfectly on your bookshelf or AV cabinet without clutter.
NEXT GEN BLUETOOTH 5 0 - Effortlessly stream from any device—iPhone, Android, laptop—with stable, lag-free audio.
POWER THAT PACKS A PUNCH - Dual 250Wx2 channels deliver immersive sound indoors or outdoors without distortion.
UNIVERSAL CONNECTIVITY HUB - Supports RCA, USB, SD card, mic inputs, FM radio, and Bluetooth for all your audio sources.

The Sunbuck Bluetooth 5.0 Audio Amplifier AS-29BU is a compact, high-power stereo system delivering 250Wx2 channels with versatile 6-input connectivity including RCA, USB, SD card, mic, FM radio, and Bluetooth 5.0. Designed for seamless streaming from all devices, it features an intuitive LED display and remote control, making it perfect for both indoor and outdoor audio setups where space and sound quality matter.

Specifications

ASIN	B07RWYYSDZ
Audio Encoding	Stereo
Audio Output Mode	Stereo
Audio Output Type	Speakers
Brand	Sunbuck
Color	Black-250W
Compatible Devices	Smartphone, Tablet, Personal Computer, Television, Speaker
Connectivity Technology	Bluetooth, RCA, USB
Connector Type	RCA, USB 2.0
Control Method	Remote
Customer Reviews	4.1 4.1 out of 5 stars (915)
Format	WAV, WMA
Item Dimensions D x W x H	7.09"D x 5.31"W x 2.17"H
Item Weight	2.7 pounds
Manufacturer	JS Electronics Limited
Mfr Part Number	AS-BU
Model Number	AS-29BU
Number of Channels	2
Number of Items	1
Other Special Features of the Product	Equalizer
Output Power	110 watts
Output Wattage	180 watts
Software Update Supported to Date	unknown
Surround Sound Channel Configuration	2
Total Number of HDMI Ports	4
Unit Count	1 Count
Video Encoding	WMV
Wattage	12 watts
Wireless Technology	Bluetooth, FM

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