Product description
AK-50 Bluetooth Stereo Audio Amplifier
Upgraded version of the AK-45 stereo amplifier
1 Multi-Speakers Receiver
2 Karaoke Amplifier
3 Multiple Applications
4 Sound Amplification
5 2.0 Chanel
400W*2 Peak Power
Professional indoor stereo receiver is designed as an independent 2.0 channel output, and the rate load power of each channel can reach 400W.
Bluetooth 5.0 Connectivity
Bluetooth range up to 32FT/10M.Please switch to bluetooth mode first and the bluetooth control distance is at an accessible distance.
Remote Control
The remote control helps you select the input mode and adjust the volume.
Perfect For Karaoke
2 microphone inputs increase the entertainment of the AMP.Microphone volume and echo adjustment let you enjoy a cheerful karaoke party time anytime, anywhere!
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
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.
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?
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.
Can bluetooth function and wired connection be used simultaneously?
Please note that the Bluetooth function and the wired function cannot be used at the same time, so when you want to use the amplifier via the Bluetooth function, do not connect any devices to the jacks (except the microphone jack).
【Multi-function Audio Control Center】This upgraded metal body audio amplifier integrates bluetooth receiver, USB/SD/FM/AUX and other multi-mode inputs, and is designed for home stereo systems. As a 2-channel amplifier, Power amplifier 400W+400W,it supports 50Wx2 powerful output, is compatible with 4-16Ω passive speakers, and presents HiFi-level sound quality with ≤0.4% distortion rate and 80dB signal-to-noise ratio. It is an ideal choice for building a stereo system for home. Built-in professional audio processing chip can perfectly connect the speaker amplifier system to meet the needs of home theater/K song/party multi-scene.
【Mic Input & Output with Echo Control】Equipped with both MIC input and MIC output ports, along with an independent Echo adjustment knob, making it perfect for karaoke, announcements, or live speaking. Easily connect to an external speaker（Active subwoofer）or recording device for expanded use.
【Enhanced Bluetooth 5.0 – Wider & More Stable Range】 The Stereo amplifier is equipped with independent high/bass knobs and dual microphone interfaces, Features advanced Bluetooth 5.0 technology with extended transmission range and faster pairing. Provides seamless wireless streaming up to 50ft/15m (open area), making music control more flexible
【USB/SD Card Plug & Play】The Amplifier home audio Supports USB 2.0 flash drives and SD cards for direct MP3 playback. No need for a phone or PC — simply plug in and enjoy your music library instantly.
【Bass, Treble & Remote Control】Designed with independent knobs for Bass, Treble, Master Volume, Mic Volume, and Echo, allowing full sound customization. Includes a remote control for convenient audio adjustments from a distance.
【Wide Compatibility for Multiple Scenarios】The stereo receivers Compatible with mobile phones, tablets, laptops, TVs, DVD players, and more. Ideal for home speakers, bookshelf speakers, gaming setups, car audio systems, outdoor garden speakers, or small party use.
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Price last updated Mar 21, 2026 15:20:43 UTC. Availability and price subject to change. More info
