--- product_id: 503674883 title: "540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control" brand: "dajunguo" price: "฿5246" currency: THB in_stock: true url: https://www.desertcart.co.th/products/503674883-540w-bluetooth-power-amplifier-board-with-subwoofer-2-1-channel store_origin: TH region: Thailand --- # 540W peak power output 2.1 channel stereo with subwoofer Independent treble & bass control 540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control **Brand:** dajunguo **Price:** ฿5246 **Availability:** ✅ In Stock ## Summary > 🎵 Unleash pro-grade sound with power and precision — don’t just listen, experience it! ## Quick Answers - **What is this?** 540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control by dajunguo - **How much does it cost?** ฿5246 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/503674883-540w-bluetooth-power-amplifier-board-with-subwoofer-2-1-channel) ## 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 - • **Ready for Nonstop Use:** Compact, lightweight design with wide voltage input (12-38V) ensures reliable performance anytime, anywhere. - • **Seamless Connectivity:** Supports Bluetooth, AUX, and USB inputs—connect effortlessly to phones, TVs, laptops, and more. - • **Built-in Safety Shield:** Advanced protections against short-circuit, over-current, overheating, and reverse polarity keep your gear safe 24/7. - • **Powerhouse Performance:** Delivers a massive 540W output (160W×2 + 220W) for immersive sound that fills any space. - • **Tailored Audio Experience:** Fine-tune your sound with dedicated treble and bass knobs for rich, layered audio that stands out. ## Overview The DAJUNGUO ZK-HT21 is a compact 540W Bluetooth 2.1 channel power amplifier board featuring the high-fidelity TPA3251 chip. It offers versatile connectivity options including Bluetooth, AUX, and USB, plus independent treble and bass controls for customized sound. Designed with multiple safety protections and a wide voltage range (12-38V), it ensures reliable, high-quality audio output for home or professional setups. ## Description 540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control ## 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 | |---------------|-------| | Manufacturer | DAJUNGUO | | Part number | ZK-HT21 | | Item Weight | 327 g | | Product Dimensions | 14.99 x 13.08 x 2.59 cm; 327 g | | Item model number | ZK-HT21 | | Colour | Black | | Power source type | DC | | Voltage | 36 Volts (DC) | | Item Package Quantity | 1 | | Plug profile | Surface Mount | | Specification met | TUV | | Included components | amplifier board | | Batteries included? | No | | Batteries Required? | No | ## Product Details - **Item dimensions L x W x H:** 15 x 13.1 x 2.6 centimetres - **Voltage:** 36 Volts (DC) - **Manufacturer:** DAJUNGUO - **Maximum supply voltage:** 24 Volts - **Minimum supply voltage:** 15 Volts (DC) ## Images ![540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control - Image 1](https://m.media-amazon.com/images/I/71m+EM+dT8L.jpg) ![540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control - Image 2](https://m.media-amazon.com/images/I/81eCQ-snpWL.jpg) ![540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control - Image 3](https://m.media-amazon.com/images/I/81KOPNOUWgL.jpg) ![540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control - Image 4](https://m.media-amazon.com/images/I/81pfLtLBTPL.jpg) ![540W Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 160W×2+220W, 15V-36V Audio Power Amplifier Module with Treble and Bass Control - Image 5](https://m.media-amazon.com/images/I/71PSPSB4GHL.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. ## 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.co.th/products/503674883-540w-bluetooth-power-amplifier-board-with-subwoofer-2-1-channel](https://www.desertcart.co.th/products/503674883-540w-bluetooth-power-amplifier-board-with-subwoofer-2-1-channel) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-24*