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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Sunbuck Small Stereo Amplifier, Stereo Receiver with Bluetooth, Optical/Coaxial Jacks for TV/CD/DVD/LP/PC, Support 192kHz Audio, Max 300Wx2 Power, Home Audio System, Receiver for Speakers, AS-25BU

Sunbuck Small Stereo Amplifier, Stereo Receiver with Bluetooth, Optical/Coaxial Jacks for TV/CD/DVD/LP/PC, Support 192kHz Audio, Max 300Wx2 Power, Home Audio System, Receiver for Speakers, AS-25BU

Product ID: 156517906

Details

Audio Output Mode
Stereo
Brand
Sunbuck
Color
Black
Compatible Devices
DVD Game
Connectivity Technology
Bluetooth RCA
Connector Type
Jacks USB

🎧Supports 192kHz high-res audio

📡Bluetooth 5.0 wireless range 12m+

🔊300Wx2 max power

Description

🎶 Small Box, Big Sound — Amplify Your Space, Amplify Your Life!

COMPACT INTUITIVE - Space-saving design with tactile bass and treble controls plus a handy remote—perfect for modern minimalist setups.
POWERHOUSE PERFORMANCE - Delivers a robust 300W x 2 output to energize any room or outdoor space with crystal-clear sound.
VERSATILE CONNECTIVITY - Optical, coaxial, RCA, USB, SD card, and FM radio inputs let you effortlessly connect all your favorite devices.
AUDIOPHILE GRADE CLARITY - Supports ultra-high 192kHz audio signals for rich, distortion-free sound that elevates every playlist.
SEAMLESS WIRELESS STREAMING - Bluetooth 5.0 ensures stable, lag-free music streaming up to 40 feet—cut the cords, not the vibe.

The Sunbuck AS-25BU is a compact stereo amplifier delivering up to 300W x 2 power with support for 192kHz high-resolution audio. Featuring Bluetooth 5.0 for wireless streaming, multiple digital and analog inputs including optical and coaxial jacks, it’s designed for versatile home audio setups. Its small footprint and intuitive controls make it ideal for millennials seeking premium sound quality without sacrificing space or style.

Specifications

ASIN	B07RXYBQF1
Audio Output Mode	Stereo
Audio Output Type	Speakers
Best Sellers Rank	#74,818 in Electronics ( See Top 100 in Electronics ) #453 in Audio Component Amplifiers
Brand	Sunbuck
Built-In Media	Antenna, Remote Controller
Color	Black
Compatible Devices	DVD, Game Console, Personal Computer, Smartphone, Television
Connectivity Technology	Bluetooth, Optical/Coaxial Jacks, RCA, SD, USB
Connector Type	Optical/Coaxial Jacks, USB Type-C
Control Method	Remote
Controller Type	Push Button
Customer Reviews	4.2 4.2 out of 5 stars (1,930)
Format	WAV, WMA
Item Dimensions D x W x H	6"D x 5"W x 2"H
Item Weight	1 kg
Manufacturer	JS Electronics Limited
Mfr Part Number	AS-25BU
Model Number	AS-25BU
Number of Channels	2
Other Special Features of the Product	Built-In Bluetooth, Optical/Coaxial Jacks, Support 192 kHz audio
Output Power	300 watts
Output Wattage	180 watts
Surround Sound Channel Configuration	2
Warranty Description	3 months
Wattage	50 watts
Wireless Technology	Bluetooth

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