--- product_id: 563507222 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: "332.53 DT" currency: TND in_stock: true reviews_count: 9 category: "Dajunguo" url: https://www.desertcart.tn/products/563507222-s350hs-tpa3251-bluetooth-power-amplifier-board-with-subwoofer-2-1 store_origin: TN region: Tunisia --- # 220W×2+350W output power Bluetooth + AUX + USB inputs Treble & bass adjustable 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:** 332.53 DT **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your sound game — power, precision, and control in one sleek amp! ## 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?** 332.53 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/563507222-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 - • **Compact & Versatile:** Sleek, lightweight design fits anywhere—perfect for home, office, or on-the-go audio projects. - • **Seamless Connectivity:** Effortlessly pair via Bluetooth or plug in through AUX and USB for ultimate device compatibility. - • **Powerhouse Performance:** Unleash a massive 220W×2 + 350W subwoofer output for room-filling sound that commands attention. - • **Rock-Solid Reliability:** Built-in multi-protection safeguards ensure uninterrupted, safe operation even under heavy use. - • **Tailored Audio Experience:** Fine-tune your sound with dedicated treble and bass controls for rich, layered audio that fits your vibe. ## Overview The S350HS TPA3251 Bluetooth Power Amplifier Board delivers a robust 2.1 channel output with 220W per stereo channel plus a 350W subwoofer, supporting wide voltage input (12-38V). Featuring Bluetooth, AUX, and USB inputs, it offers versatile connectivity. Adjustable treble and bass controls let you customize your audio experience, while multiple built-in protections ensure safe, reliable operation. Compact and lightweight, it’s ideal for professional-grade sound enhancement in diverse setups. ## 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: Awesome Power. Sound quality good enough for this hifi snob. - I've bought many amplifier boards for various projects. Dajunguo is by far the best quality. This would be my second purchase of this specific model. Pros: Fan included, knobs are nice. Simple hookup. Bluetooth range is incredible. no noticeable noise or chittering. best of all, the auto mute that most of these have to hide the feedback is turned off so your music isn't cutting out at a break point. Cons: none really. it would be nice if you could remove the face plate for better mounting options. Review: So powerful to be so small. - 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. ## 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 | #34,864 in Electronics ( See Top 100 in Electronics ) #181 in Audio Component Amplifiers | | Brand Name | DAJUNGUO | | Customer Reviews | 4.2 out of 5 stars 197 Reviews | | Global Trade Identification Number | 00194852393363 | | Included Components | amplifier board | | Item Dimensions | 5.9 x 5.15 x 1.02 inches | | Item Weight | 327 g | | Item dimensions L x W x H | 5.9 x 5.15 x 1.02 inches | | Manufacturer | DAJUNGUO | | Material Type | metal, plastic | | Maximum Supply Voltage | 36 volts_of_direct_current | | Minimum Supply Voltage | 12 volts_of_direct_current | | Model | S350HS | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Output Power | 220220350 watts | | Package Type Name | unassembled kit | | Part Number | ZK-HT21 | | Specification Met | CE | | UPC | 194852393714 194852393363 | | Voltage | 15 volts_of_direct_current | ## 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_of_direct_current - **Minimum Supply Voltage:** 12 volts_of_direct_current - **Voltage:** 15 volts_of_direct_current ## 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) ## Available Options This product comes in different **Model** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome Power. Sound quality good enough for this hifi snob. *by C***N on July 8, 2026* I've bought many amplifier boards for various projects. Dajunguo is by far the best quality. This would be my second purchase of this specific model. Pros: Fan included, knobs are nice. Simple hookup. Bluetooth range is incredible. no noticeable noise or chittering. best of all, the auto mute that most of these have to hide the feedback is turned off so your music isn't cutting out at a break point. Cons: none really. it would be nice if you could remove the face plate for better mounting options. ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐ Nice, versatile audio amplifier that's a jack of all trades *by W***G on May 23, 2026* This is a very clean-sounding, capable amplifier. I'm impressed with the amount of power it can handle, and all the features that come with it for about one-third to one-half the cost of a commercially available amp with similar features. It's goo, but there are some things that are not included that would make it great. Pros * Good, clean power. Very low noise, unless you introduce it yourself from a ground loop or similar power issue. * Takes a wide-range of input power. I started using a Lenovo laptop 19v 5 amp, and then bought a new 36v 5 amp. For my setup, there was practically no difference. * Separate controls/output for subwoofers. This jacks the price in the commercial options to the $150+ category. * Lots of input options, although I think most will use the 3.5 mm audio cable or Bluetooth. * Customizable - if you have a 3D printer, you can make it look like anything you want. Cons * Big "pop" sounds when you turn it on or off. No power on/power off protection/relay to overcome the big capacitor discharges. You can fix this with a $13 board off Amazon (https://www.amazon.com/dp/B0DP9CLBMF?ref=ppx_yo2ov_dt_b_fed_asin_title), but it's an extra cost with extra skill most might not want to take on to play their music. * No high-def audio codecs with Bluetooth. The app is pretty cool, though, if you want a custom name for your Bluetooth connection. I'm using it to drive my home entertainment center, from TV to DVD to PC and streaming music and just love it. ## Frequently Bought Together - 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) - APIELE 16mm Latching Push Button Switch 12V DC On Off Black Shell with LED Angel Eye Head for 0.63" Mounting Hole with Wire Socket Plug Self-Locking (Blue/Black Shell) - 1 Packs Power Wheel Adapter for Milwaukee M18 Battery Adapter 18V Power Wheel Battery Conversion Kit with Switch, Fuse & Wire Terminals, 12AWG Wire, Power Connector for DIY Rc Car Toys and Robotics --- ## 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/563507222-s350hs-tpa3251-bluetooth-power-amplifier-board-with-subwoofer-2-1](https://www.desertcart.tn/products/563507222-s350hs-tpa3251-bluetooth-power-amplifier-board-with-subwoofer-2-1) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-18*