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 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 hi-res 192kHz audio

📡Bluetooth 5.0 wireless range 40ft+

🔊300Wx2 max power output

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Description

🎶 Elevate your audio game — because your sound deserves to be as sharp as your style.

HI RES AUDIO CLARITY - Experience crystal-clear music with support for 192kHz high-resolution audio signals.
COMPACT DESIGN BIG IMPACT - Sleek, space-saving footprint perfect for modern minimalist setups without sacrificing power.
CUSTOMIZABLE SOUND CONTROL - Fine-tune bass and treble with intuitive knobs to match your mood and environment.
POWERFUL 300 W STEREO OUTPUT - Fill your space with rich, distortion-free sound that commands attention.
SEAMLESS MULTI DEVICE CONNECTIVITY - Connect effortlessly via Bluetooth 5.0, optical/coaxial jacks, RCA, USB, and SD card inputs.

The Sunbuck AS-25BU is a compact yet powerful stereo amplifier delivering up to 300Wx2 RMS power with ultra-low distortion. Supporting high-resolution 192kHz audio and equipped with Bluetooth 5.0 plus multiple digital and analog inputs, it seamlessly integrates with TVs, PCs, and more. Its minimalist design and customizable sound controls make it the perfect upgrade for any professional’s home or office audio setup.

Specifications

ASIN	B07RXYBQF1
Audio Output Mode	Stereo
Audio Output Type	Speakers
Best Sellers Rank	#102,251 in Electronics ( See Top 100 in Electronics ) #629 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 (1,928)
Format	WAV, WMA
Item Dimensions D x W x H	6"D x 5"W x 2"H
Item Weight	1 Kilograms
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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