--- product_id: 382080504 title: "S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS)" brand: "dajunguo" price: "€ 108.81" currency: EUR in_stock: true reviews_count: 9 category: "Dajunguo" url: https://www.desertcart.com.cy/products/382080504-s350hs-tpa3251-bluetooth-power-amplifier-board-with-subwoofer-2-1 store_origin: CY region: Cyprus --- # 220W×2+350W output power Bluetooth, AUX & USB inputs Treble & bass control knobs S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS) **Brand:** dajunguo **Price:** € 108.81 **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your sound game—because your audio deserves to be as ambitious as you are. ## Quick Answers - **What is this?** S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS) by dajunguo - **How much does it cost?** € 108.81 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/382080504-s350hs-tpa3251-bluetooth-power-amplifier-board-with-subwoofer-2-1) ## Best For - dajunguo enthusiasts ## Why This Product - Trusted dajunguo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Connectivity:** Effortlessly pair via Bluetooth or plug in through AUX and USB for ultimate device compatibility. - • **Powerhouse Performance:** Unleash crisp highs and earth-shaking bass with 220W×2 + 350W subwoofer output—feel every beat. - • **Built to Last & Protect:** Advanced multi-layer protection guards against short-circuit, over-current, and overheating for worry-free jams. - • **Plug & Play Versatility:** Compact, surface-mount design fits anywhere—perfect for pros upgrading home studios, trucks, or creative setups. - • **Tailored Sound Experience:** Customize your audio with dedicated treble and bass controls—because one knob just isn’t enough. ## Overview The S350HS TPA3251 Bluetooth Power Amplifier Board delivers a robust 2.1 channel output with 220W per stereo channel plus a 350W subwoofer channel, supporting a wide 12-38V input range. Featuring Bluetooth, AUX, and USB inputs, it offers versatile connectivity for all your devices. With dedicated treble and bass controls, it lets you fine-tune your sound profile. Built-in protections ensure safe, reliable operation, making it an ideal upgrade for professionals seeking powerful, customizable audio performance in a compact form. ## Description Buy S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS): Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Would buy again - Powered off of my 24v lifepo4 battery in my semi truck. Pushes the highs at 2ohm and a kicker comp 10 150w rms 4ohm real nice. Sub is in passenger floor in front of seat, can feel and hear the bass very nicely. I will probably upgrade to the metal encased version in due time, but works good for me. Review: Don’t use cheap speakers and power and you’ll get good results! - Does good, with proper power!!! This things a beast ## Features - 【TPA3251 HIFI CHIP】The TPA3251 Chip Solution: Stereo 2.1channel Output to Ensure Continuous Serial High-power Operation, Wide Voltage Input DC: 12-38V,This power amplifier board uses two TPA3251 high-fidelity maximum output power up to 220W*2+350W. - 【MULTIPLE INPUT METHOD】The S350HS has multiple input methods such as Bluetooth input, AUX input, and USB drive input. The vast majority of devices can be used, such as mobile phones, televisions, laptops, etc., making it easy to connect and use. - 【TREBLE & BASS CONTROL】If you are tired of an amplifier with only one volume knob, then you feel right, because you have further requirements for audio. By adjusting the high and low frequency knobs of the S350HS power amplifier board, you can make the sound more layered and make the bass more shocking. - 【PROTECTION FUNCTION】S350HS Bluetooth power amplifier board has multiple protection mechanisms to ensure its safe operation. It has short-circuit protection, over-current, over-heat, and anti-reverse protection. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage - 【7 * 24 Hours After-sales Service】 Paying Attention To Customer Experience And Satisfying Customers Is Our Service Tenet. If You Have Any Questions About The Product, or The Product Has Quality Problems, Please Contact Us At Any Time, We Will Give You A 100% Satisfactory Answer ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CHF6MML7 | | Best Sellers Rank | #22,086 in Electronics ( See Top 100 in Electronics ) #113 in Audio Component Amplifiers | | Brand Name | DAJUNGUO | | Customer Reviews | 4.4 4.4 out of 5 stars (177) | | Global Trade Identification Number | 00194852393363 | | Included Components | amplifier board | | Item Dimensions | 5.9 x 5.15 x 1.02 inches | | Item Weight | 327 Grams | | Manufacturer | DAJUNGUO | | Material Type | metal, plastic | | Maximum Supply Voltage | 36 Volts (DC) | | Minimum Supply Voltage | 12 Volts (DC) | | Model | S350HS | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Output Power | 220220350 Watts | | Package Type Name | unassembled kit | | Specification Met | CE | | UPC | 194852393714 194852393363 | | Voltage | 15 Volts (DC) | ## Product Details - **Item dimensions L x W x H:** 5.9 x 5.15 x 1.02 inches - **Manufacturer:** DAJUNGUO - **Maximum Supply Voltage:** 36 Volts (DC) - **Minimum Supply Voltage:** 12 Volts (DC) - **Voltage:** 15 Volts (DC) ## Images ![S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS) - Image 1](https://m.media-amazon.com/images/I/71nqfZS9l3L.jpg) ![S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS) - Image 2](https://m.media-amazon.com/images/I/81CQ4In1euL.jpg) ![S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS) - Image 3](https://m.media-amazon.com/images/I/81zyipBklsL.jpg) ![S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS) - Image 4](https://m.media-amazon.com/images/I/81JgTUzoJgL.jpg) ![S350HS TPA3251 Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 220W×2+350W, 12V-38V Audio Power Amplifier Module with Treble and Bass Control,Black (S350HS) - Image 5](https://m.media-amazon.com/images/I/91hfeCe540L.jpg) ## Available Options This product comes in different **Model** options. ## Questions & Answers **Q: Is the subwoofer frequency knob an adjustable low-pass filter?** A: Yes frequency and gain aka volume separate from volume for everything..aswel as a slider volume so you can set the max anyone can turn the volume up..so they don't blow .. **Q: If I was hook this up in my vehicle with about 13.6vdc-14.1vdc and 50-60amps then will it work or blow? If it’ll work then how many watts/channel???** A: I had the slightly weaker version setup in my vehicle. I wired the front speakers to the two speaker channels, and ended up wiring my rear 6x9s in series and wired those to the subwoofer channel. You must be careful with impedances if you do this to make sure you don't blow your speakers. But doing this gave me very good sound for not having an actual subwoofer. A dedicated, high power amplifier will have way more bump for an actual subwoofer, however, if you're ok with the idea of using your rear fill as a stand-in subwoofer, wire it up how I described and it'll sound pretty good. I also used a DC-DC buck converter to step my vehicle's 12-14V DC up to the optimal power level for the amplifier. They're all over amazon just search the input power by the output power and the amp rating and you'll be good to go. **Q: Fuente recomendable para este equipo?** A: ¿Quieres decir qué tipo de energía necesita? La fuente de alimentación de 12V-36V / (5-15A) DC puede impulsarlo. Si desea obtener una entrada de alta potencia, primero debe aumentar el voltaje de entrada o reducir la impedancia del altavoz. **Q: To run a 4ohm sub and 4 ohm speakers what ah should I get for the 36v power supply?** A: This need depends on your needs, if your speaker power is relatively large, then it is recommended to use 36V. If the power of the speaker is not very large, the 24V DC power supply can also drive your speaker. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Would buy again *by J***R on September 2, 2025* Powered off of my 24v lifepo4 battery in my semi truck. Pushes the highs at 2ohm and a kicker comp 10 150w rms 4ohm real nice. Sub is in passenger floor in front of seat, can feel and hear the bass very nicely. I will probably upgrade to the metal encased version in due time, but works good for me. ### ⭐⭐⭐⭐⭐ Don’t use cheap speakers and power and you’ll get good results! *by D***E on February 21, 2026* Does good, with proper power!!! This things a beast ### ⭐⭐⭐⭐⭐ So powerful to be so small. *by M***S on January 28, 2026* I am totally blown away that something so small can put out so much sound. I have purchased several of these in various sizes for my projects. In my experience with amps i have never seen anything like these. They can plug into accessory plugs in car and the supply cord don't even get warm. Amazing. Anything compatible so far would have to have a supply wire the size of little finger and still get hot. Easy to install and top value for the money. Get a handful of them, you'll find a use for them. They can fit in multiple places because of the compact size and light weight. Controls are easily accessible and sub control is convenient. ## Frequently Bought Together - TDA7498E Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control - ALITOVE 24V Power Supply DC 24 Volt 5A AC Adapter 100-240V AC/DC Adapter Transformer Compatible 5 Amp 4A 3A 2.7A 2.5A 2A with 5.5 * 2.5mm/2.1mm Tip for LED Strip CCTV Camera Printer LCD Monitor - Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 50W×2+100W, 12V-24V Audio Power Amplifier Module with Treble and Bass Control for DIY Bluetooth Audio and Store Home Theater --- ## 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.com.cy/products/382080504-s350hs-tpa3251-bluetooth-power-amplifier-board-with-subwoofer-2-1](https://www.desertcart.com.cy/products/382080504-s350hs-tpa3251-bluetooth-power-amplifier-board-with-subwoofer-2-1) --- *Product available on Desertcart Cyprus* *Store origin: CY* *Last updated: 2026-04-25*