---
product_id: 221372437
title: "4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4]"
brand: "douk audio"
price: "27266 som"
currency: KGS
in_stock: true
reviews_count: 10
category: "Douk Audio"
url: https://www.desertcart.kg/products/221372437-4-channel-bluetooth-amplifier-50w-x-4-audio-power-amp
store_origin: KG
region: Kyrgyzstan
---

# USB lossless format support Bluetooth 5.0 stable wireless 50W x 4 powerful output 4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4]

**Brand:** douk audio
**Price:** 27266 som
**Availability:** ✅ In Stock

## Summary

> 🎶 Amplify your space, wirelessly and with style!

## Quick Answers

- **What is this?** 4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4] by douk audio
- **How much does it cost?** 27266 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/221372437-4-channel-bluetooth-amplifier-50w-x-4-audio-power-amp)

## Best For

- douk audio enthusiasts

## Why This Product

- Trusted douk audio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek & Durable Design:** CNC-machined aluminum alloy chassis combines modern aesthetics with long-lasting reliability.
- • **Versatile Audio Inputs:** Supports wired RCA, Bluetooth, and USB U-disk playback with MP3, FLAC, WAV & more lossless formats.
- • **Quad-Channel Powerhouse:** Deliver immersive sound with 200W total output, perfect for multi-room or multi-speaker setups.
- • **Independent Volume Control:** Fine-tune each of the 4 channels separately for perfect sound balance in any space.
- • **Seamless Wireless Connectivity:** Bluetooth 5.0 with high-gain antenna ensures fast, stable streaming from any device.

## Overview

The Douk Audio M4 is a 4-channel Bluetooth amplifier delivering 50W per channel (200W total) with versatile input options including Bluetooth 5.0, dual RCA, and USB for lossless audio playback. Its independent channel volume controls and robust 24V/4.5A power supply make it ideal for home or office multi-speaker setups. Encased in a CNC-machined aluminum alloy shell, it offers both durability and a sleek, modern look.

## Description

Buy 4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4]: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent bang for the buck! - This amp is an absolute beast! I'm using it in my 1600 sq ft shop with 4 speakers mounted in each corner, and let me tell you - it will absolutely rock the entire place out! The power this thing puts out is seriously impressive. One of my favorite features is being able to adjust each channel's volume individually. This gives me perfect control to balance all four corners of the shop and get even coverage throughout the space. The Bluetooth range is surprisingly good too - I can move around the entire shop without any dropouts, which is exactly what I need when I'm working. I've been running it with 2-ohm speakers and it handles them beautifully at around 75% volume with no distortion or heat issues. Plenty of headroom for when I really want to crank it up! There are a couple of small quirks worth mentioning. The speaker wire terminals are a bit finicky to work with - they get the job done but aren't the most elegant design. Also, the channel numbering is counterintuitive with channel 1 on the right and channel 4 on the left, rather than going left to right as you'd expect. You get used to it quickly though. Despite these minor issues, this amp is perfect for my shop setup. The power, flexibility, and wireless performance are exactly what I needed. Highly recommended for workshop or garage setups!
Review: Great 4 channel amps w/ Bluetooth, USB, Aux RCA's. - This is a great 4 channel amp. Have installed 2 at my son's who moved in to a house w/ 3 sets of built in stereo speakers and I added my large indoor 12" woofer, mid, tweeter to his living room. So, 8 channels driven. Not using Aux In. Selected Ch3&4 RCA's for Output and fed the second M4. Have 2 at my son in law's house. Same as son's he has 4 Stereo sets that came with the house. There I took his Flat panel TV output and fed the Aux RCA's in for Ch1&2, and selected Ch3&4 RCA's for Output and fed the second M4. Installed 1 in my garage driving indoor and outdoor Bose wall mounts. Bluetooth works great w/ good range. Big bonus for me is the USB. I took my old USB-2 thumb drives and copied genres or "playlists" to a bunch of them. This really is my favorite use. Plug in what I want and crank it up! This is a 4 channel amp, so each speaker has separate volume. Plenty of power. Works for me. Oddities: Looking at the front, the Channels volumes are Ch4, 3, 2, 1 left to right. Being an old time audio guy, Left is Ch1, Right is Ch2 for Stereo. I just wired it so Ch1/3 is my L, Ch2/4 my R. On the Aux input, just hook Source Red to White input, White to Red input. No big deal. Wishlist: USB has Next, Previous & Pause/Play buttons. Would love to see Next & Previous "album" and Shuffle. Update on USB use: It is a bit fussy on the thumb drive you use. Data Travelers work. Patriots USB-2 did not. PNY USB-2 no, USB-3 yes. I just bought a 10 pack of PNY 32GB USB-3.0's that work great. Cheap

## Features

- One group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands
- Supporting wired 2 groups of stereo RCA and wireless Bluetooth 5.0 input, compatible with most common audio device such as phones, computers, TVs, MP3, TV, CD players etc. With U-disk input, it can be used as a digital music player, supporting MP3, WAV, APE, FLAC and WMA lossless formats.
- With 4 groups of speaker sockets output, they can output at the same time and each channel with independent volume control. Its max output power can reach 50W×4, and equipped with high-quality 24V/4.5A power supply, enough to drive most home speakers.
- Reasonable circuit layout, concise wiring and high-quality components to ensure HiFi clear sound and long time stable work. Separate design of small and large signal circuit for better circuit protection. Bluetooth 5.0 version with high-gain antenna, ensure more stable and faster transmission.
- Propersize with exquisite appearance, aluminum alloy case is CNC machined and with anodizing process, more fashionable and durable, very suitable for home, office and desktop audio system use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0875WY9TX |
| Best Sellers Rank | #15,216 in Electronics ( See Top 100 in Electronics ) #65 in Audio Component Amplifiers |
| Brand | Douk Audio |
| Customer Reviews | 4.2 4.2 out of 5 stars (357) |
| Date First Available | April 16, 2020 |
| Item Weight | 2.29 pounds |
| Item model number | SUC-M4 |
| Manufacturer | Douk Audio |
| Material | Aluminum |
| Maximum Supply Voltage | 24 Volts (DC) |
| Minimum Supply Voltage | 12 Volts (DC) |
| Mounting Type | Surface Mount |
| Number of Channels | 4 |
| Output Power | 200 Watts |
| Package Dimensions | 11.69 x 8.94 x 2.52 inches |
| Specification Met | CE, FCC |
| Supply Current | 4.5 Amps |
| Voltage | 24 Volts (DC) |

## Product Details

- **Manufacturer:** Douk Audio
- **Maximum Supply Voltage:** 24 Volts (DC)
- **Minimum Supply Voltage:** 12 Volts (DC)
- **Mounting Type:** Surface Mount
- **Voltage:** 24 Volts (DC)

## Images

![4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4] - Image 1](https://m.media-amazon.com/images/I/618e5MV9XwL.jpg)

## Questions & Answers

**Q: When using Bluetooth as the input, will the audio be output to all 4 channels simultaneously?**
A: Yes. in its simplest setup, there is basically Stereo, Left and Right audio channels, times two If you want it to work that way. OR, if you want/need to something more complex, you can change the mode of operation by pressing a button in the back, and have 2 separate Stereo feeds. One Stereo feed for channel 1 and 2, and a different Stereo feed for channel 3 and 4 by using the RCA jacks on the back. Its pretty well explained in the manual, and in the details of the Item Description if you cared to read it.

**Q: At low volume levels my unit cuts in and out, with an accompanying soft hum/beep. Before I ask for a replacement, ahs anyone else experienced this?**
A: Hello. Could you please send us a message on Amazon with more details? This issue may happen if the speaker power is too high.

**Q: Does this have sufficient power to power 4 Aura ast-2b-04 shakers?**
A: I have 35 watt ceiling speakers and the volume is very sufficient. You could always try it or send it back if it didn't work. Great amp for the price and very small footprint.

**Q: Is there a way to hook up a master volume switch to this unit, any ideas???**
A: Hello. You can add a volume control before this device. For example, https://www.amazon.com/dp/B07GRLV7XG?ref=myi_title_dp

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent bang for the buck!
*by D***. on January 9, 2026*

This amp is an absolute beast! I'm using it in my 1600 sq ft shop with 4 speakers mounted in each corner, and let me tell you - it will absolutely rock the entire place out! The power this thing puts out is seriously impressive. One of my favorite features is being able to adjust each channel's volume individually. This gives me perfect control to balance all four corners of the shop and get even coverage throughout the space. The Bluetooth range is surprisingly good too - I can move around the entire shop without any dropouts, which is exactly what I need when I'm working. I've been running it with 2-ohm speakers and it handles them beautifully at around 75% volume with no distortion or heat issues. Plenty of headroom for when I really want to crank it up! There are a couple of small quirks worth mentioning. The speaker wire terminals are a bit finicky to work with - they get the job done but aren't the most elegant design. Also, the channel numbering is counterintuitive with channel 1 on the right and channel 4 on the left, rather than going left to right as you'd expect. You get used to it quickly though. Despite these minor issues, this amp is perfect for my shop setup. The power, flexibility, and wireless performance are exactly what I needed. Highly recommended for workshop or garage setups!

### ⭐⭐⭐⭐⭐ Great 4 channel amps w/ Bluetooth, USB, Aux RCA's.
*by D***E on April 7, 2025*

This is a great 4 channel amp. Have installed 2 at my son's who moved in to a house w/ 3 sets of built in stereo speakers and I added my large indoor 12" woofer, mid, tweeter to his living room. So, 8 channels driven. Not using Aux In. Selected Ch3&4 RCA's for Output and fed the second M4. Have 2 at my son in law's house. Same as son's he has 4 Stereo sets that came with the house. There I took his Flat panel TV output and fed the Aux RCA's in for Ch1&2, and selected Ch3&4 RCA's for Output and fed the second M4. Installed 1 in my garage driving indoor and outdoor Bose wall mounts. Bluetooth works great w/ good range. Big bonus for me is the USB. I took my old USB-2 thumb drives and copied genres or "playlists" to a bunch of them. This really is my favorite use. Plug in what I want and crank it up! This is a 4 channel amp, so each speaker has separate volume. Plenty of power. Works for me. Oddities: Looking at the front, the Channels volumes are Ch4, 3, 2, 1 left to right. Being an old time audio guy, Left is Ch1, Right is Ch2 for Stereo. I just wired it so Ch1/3 is my L, Ch2/4 my R. On the Aux input, just hook Source Red to White input, White to Red input. No big deal. Wishlist: USB has Next, Previous & Pause/Play buttons. Would love to see Next & Previous "album" and Shuffle. Update on USB use: It is a bit fussy on the thumb drive you use. Data Travelers work. Patriots USB-2 did not. PNY USB-2 no, USB-3 yes. I just bought a 10 pack of PNY 32GB USB-3.0's that work great. Cheap

### ⭐⭐⭐⭐ Great unit for supporting two sets of speakers using same signal
*by P***H on February 25, 2022*

UPDATE: Just after the warranty expired the Bluetooth capabilities failed. I contacted the vendor and while they would not replace the unit, they did provide me an essentially new unit by sending me an entirely new circuit board for $10 shipping. Swapping out the circuit board is fairly straight forward if you have done this kind of thing before. The replacement board now has a working Bluetooth connection. I have to give this vendor credit for basically replacing the unit out of warranty. I stand by my original review - it is a nice unit. ORIGINAL: I just installed this, so it's early. I have two sets of speakers in the same room that require a different volume setting in order to be properly balanced. This unit does a great job sending the same sound source to two different speakers. My sound source is a Mac using BT, so master volume is controlled on my Mac. The documentation is a little lacking - I have included a diagram of how the volume controls are mapped to stereo signals - I may have missed it, but I could not find it in the documentation. Overall I really like it so far.

## Frequently Bought Together

- 4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4]
- Amazon Basics 16-Gauge Speaker Wire Cable, 100 feet, Bronze
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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-02*