--- product_id: 343986809 title: "Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Power Amp, Hi-Fi Home Stereo Speaker Receiver [ M4]" brand: "douk audio" price: "£137.40" currency: GBP in_stock: true reviews_count: 5 url: https://www.desertcart.co.uk/products/343986809-douk-audio-4-channel-bluetooth-amplifier-50w-x-4-power store_origin: GB region: United Kingdom --- # Supports lossless audio formats Bluetooth 5.0 with high-gain antenna 50W x 4 powerful channels Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Power Amp, Hi-Fi Home Stereo Speaker Receiver [ M4] **Brand:** douk audio **Price:** £137.40 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound game with power, clarity, and style. ## Quick Answers - **What is this?** Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Power Amp, Hi-Fi Home Stereo Speaker Receiver [ M4] by douk audio - **How much does it cost?** £137.40 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/343986809-douk-audio-4-channel-bluetooth-amplifier-50w-x-4-power) ## 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 with anodized finish adds a modern, premium touch to any desktop or living space. - • **Quad-Channel Powerhouse:** Unleash 200W total output with independent volume control for each speaker—perfect for immersive home audio setups. - • **Audiophile-Grade Sound Clarity:** Hi-Fi circuit design with separate small and large signal paths ensures crystal-clear, distortion-free audio. - • **Future-Proof Wireless Stability:** Advanced Bluetooth 5.0 with high-gain antenna guarantees faster, more stable connections—never miss a beat. - • **Seamless Multi-Source Connectivity:** Switch effortlessly between wired RCA inputs, Bluetooth 5.0 streaming, and U-disk digital playback for ultimate versatility. ## Overview The Douk Audio M4 is a 4-channel Bluetooth amplifier delivering 50W per channel with independent volume controls. It supports wired RCA and Bluetooth 5.0 inputs, plus U-disk playback of multiple lossless audio formats. Built with a high-quality aluminum alloy case and advanced circuit design, it offers stable, Hi-Fi sound performance ideal for home or office audio systems. ## 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 | #111,713 in Electronics (See Top 100 in Electronics) #326 in Home Audio Amplifiers | | Brand | Douk Audio | | Customer Reviews | 4.2 4.2 out of 5 stars (342) 4.2 out of 5 stars | | Mfr Part Number | SUC-M4 | | Model Number | SUC-M4 | | Number Of Items | 1 | | Unit Count | 1 Count | ## Product Details - **Brand:** Douk Audio - **Compatible devices:** Smartphone, Personal Computer, Television, Speaker, MP3 Player, CD Player - **Connectivity technology:** RCA, Bluetooth - **Controller type:** USB, Bluetooth - **Special features:** Built-In Bluetooth, U-disk Input, Digital Music Player ## Images ![Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Power Amp, Hi-Fi Home Stereo Speaker Receiver [ M4] - Image 1](https://m.media-amazon.com/images/I/618e5MV9XwL.jpg) ![Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Power Amp, Hi-Fi Home Stereo Speaker Receiver [ M4] - Image 2](https://m.media-amazon.com/images/I/71JiOISGTZL.jpg) ![Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Power Amp, Hi-Fi Home Stereo Speaker Receiver [ M4] - Image 3](https://m.media-amazon.com/images/I/71gaBi6tw6L.jpg) ![Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Power Amp, Hi-Fi Home Stereo Speaker Receiver [ M4] - Image 4](https://m.media-amazon.com/images/I/710cJAw2iLL.jpg) ![Douk Audio 4 Channel Bluetooth Amplifier, 50W x 4 Power Amp, Hi-Fi Home Stereo Speaker Receiver [ M4] - Image 5](https://m.media-amazon.com/images/I/71W1+jDQFML.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 ### ⭐⭐⭐⭐⭐ Works great! *by on Reviewed in Canada 25 January 2026* Nice, affordable alternative to an expensive setup. Great for a DIY speaker setup with BT. ### ⭐⭐⭐⭐⭐ 店舗で使用 *by on Reviewed in Japan 25 September 2025* 使用方法は用途とは違いますが、４スピーカーそれぞれ音量調整をしたかった。アレクサでラジオを受信し、各部屋の広さに合わせて音量をコントロールしてます。モノラルの音源になってしまいますが ### ⭐⭐⭐⭐⭐ Best 4 channel *by on Reviewed in India 21 July 2026* Super for what it is and what it does. I connect for spekars at about 40 volume and that is enough, alao being class D its super silent and fast. Use only provided power source please. However be aware there is no freq control, only volume. ## 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 - Dayton Audio BST-1 High Power Pro Tactile Bass Shaker 50 Watts RMS, 4 Ohms Impedance - Turn Any Surface into a Speaker System - Generates Subwoofer Lows --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/343986809-douk-audio-4-channel-bluetooth-amplifier-50w-x-4-power](https://www.desertcart.co.uk/products/343986809-douk-audio-4-channel-bluetooth-amplifier-50w-x-4-power) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-08-26*