--- product_id: 473461440 title: "4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4]" brand: "douk audio" price: "149.13 DT" currency: TND in_stock: false reviews_count: 5 url: https://www.desertcart.tn/products/473461440-4-channel-bluetooth-amplifier-50w-x-4-audio-power-amp store_origin: TN region: Tunisia --- # Supports lossless audio formats Bluetooth 5.0 wireless input 50W x 4 max output power 4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4] **Brand:** douk audio **Price:** 149.13 DT **Availability:** ❌ Out of Stock ## Summary > 🎧 Elevate your soundscape — connect, control, and conquer every room! ## 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?** 149.13 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/473461440-4-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 case with anodized finish—style and longevity for your modern workspace or home. - • **Versatile Audio Inputs:** Switch effortlessly between Bluetooth, dual stereo RCA, and U-disk inputs supporting MP3 to FLAC lossless files. - • **Powerful 4-Channel Output:** Deliver immersive sound with 50W per channel, perfect for multi-room or multi-speaker setups. - • **Independent Volume Control:** Customize sound levels on each of the 4 speaker outputs for a tailored audio experience in every corner. - • **Seamless Bluetooth 5.0 Connectivity:** Wirelessly stream your favorite playlists with ultra-stable, low-latency Bluetooth 5.0 tech. ## Overview The Douk Audio M4 is a compact yet powerful 4-channel Bluetooth amplifier delivering 50W per channel with Hi-Fi clarity. It supports multiple audio inputs including Bluetooth 5.0, stereo RCA, and U-disk playback of lossless formats. Designed with independent volume controls and a durable anodized aluminum chassis, it’s ideal for sophisticated home or office audio setups seeking versatile, high-quality sound distribution. ## Description One group of stereo RCA (CH3 and CH4) can be used as audio input or output by switching the selector, to acheive different demands: CH3/CH4 as audio output: 4 groups of speaker sockets can connect to 2 pair of speakers. Besides connect to active speakers, CH3/CH4 also can connect to another M4 amplifier to connect more speakers, in this way multiple amplifiers and multiple speakers can be connected in turn, to achieve one audio signal be shared in several rooms.CH3/CH4 as audio input: one input corresponds to one output (ex. CH1 speaker socket will output the audio signal that CH1 inputs), which means that two groups of stereo audio signal (or 4 groups of mono audio signal) can be input at the same time. Notice: U-disk input is prior to Bluetooth input, so please make sure U-disk has been pulled out if you want Bluetooth input. Parameters: Model: Douk Audio M4Channel: 2.0 / 4.0Audio input: Bluetooth/Stereo RCA/U-diskAudio output: speaker socketsU-disk support format: MP3, WMA, APE, FLAC, WAV...U-disk capacity: max 32GBluetooth version: 5.0Speaker impedance: 4-8ΩMax output power: 50W*4 (4Ω load)SNR: ≥98dBInput sensitivity: 0.775VTHD: 0.05%(1kHz 1W)Frequency Response: 20Hz-20KHz(±3dB)Working voltage: DC 12-24VColor: BlackDimensions(W*D*H): 128*134*33mm / 5.04*5.28*1.30inNet weight: 540g / 1.19lbPackage weight: 1100g / 2.43lb Packing List: 1*M4 Amplifier1*24V/4.5A Power Supply1 Set*Raw Cable Speaker Jacks1*Manual Review: Works great! - Nice, affordable alternative to an expensive setup. Great for a DIY speaker setup with BT. Review: 店舗で使用 - 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 ## 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. Unique Bluetooth design without any external antenna, very practical and beautiful. - 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 | | Brand | Douk Audio | | Brand Name | Douk Audio | | Customer Reviews | 4.2 out of 5 stars 335 Reviews | | Manufacturer | Douk Audio | | Manufacturer Part Number | SUC-M4 | | Model Number | SUC-M4 | | Number of Channels | 4 | | Number of channels | 4 | | Output Power | 200 Watts | | Output Wattage | 50 Watts | | Output power | 200 Watts | | Output wattage | 50 Watts | | Wattage | 200 watts | ## Product Details - **Voltage:** 24 Volts (DC) - **Manufacturer:** Douk Audio - **Maximum supply voltage:** 24 Volts - **Minimum supply voltage:** 12 Volts - **Mounting type:** Surface Mount ## 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) ![4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4] - Image 2](https://m.media-amazon.com/images/I/71JiOISGTZL.jpg) ![4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4] - Image 3](https://m.media-amazon.com/images/I/71gaBi6tw6L.jpg) ![4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio M4] - Image 4](https://m.media-amazon.com/images/I/710cJAw2iLL.jpg) ![4 Channel Bluetooth Amplifier, 50W x 4 Audio Power Amp, Hi-Fi Home Stereo Speaker Receiver [Douk Audio 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 N***C on 25 January 2026* Nice, affordable alternative to an expensive setup. Great for a DIY speaker setup with BT. ### ⭐⭐⭐⭐⭐ 店舗で使用 *by ヒ***ロ on 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 ### ⭐⭐⭐⭐⭐ Drives sim rig base shakers over Bluetooth without fuss, great build quality *by T***R on 23 March 2023* Shipping and delivery from Douk Audio very fast and painless. I'm using this to drive bass shakers on a Sim Rig. I was uncertain about the connector as this isn't (or doesn't seem to be; the feature descriptions are ambiguous) a USB sound card, but it installed easily and perfectly as a Bluetooth audio device which turns out to be much easier than yet another USB connection on the rig. The build quality is really impressive at the price and it works well and feels very robust. I was using the other well-known and popular brand cheap little USB 2x50W solution - had no problems for a year then mine failed and its replacement failed for no clear reason. This solved the problem and has given me the extra channels to add a couple more shakers when budget allows. ## 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.tn/products/473461440-4-channel-bluetooth-amplifier-50w-x-4-audio-power-amp](https://www.desertcart.tn/products/473461440-4-channel-bluetooth-amplifier-50w-x-4-audio-power-amp) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-31*