--- product_id: 394545946 title: "DAJUNGUO 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: "HK$81" currency: HKD in_stock: false url: https://www.desertcart.hk/products/394545946-dajunguo-540w-bluetooth-power-amplifier-board-with-subwoofer-2-1 store_origin: HK region: Hong Kong --- # 540W total output power Bluetooth + AUX + USB inputs Adjustable treble & bass controls DAJUNGUO 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:** HK$81 **Availability:** ❌ Out of Stock ## Summary > 🎵 Unleash the beast in your audio setup—power, precision, and control in one sleek board! ## Quick Answers - **What is this?** DAJUNGUO 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?** HK$81 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/394545946-dajunguo-540w-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 connect via Bluetooth, AUX, or USB—compatible with all your devices from phones to laptops. - • **Plug & Play Simplicity:** Compact, surface-mount design with easy installation—get premium sound without the hassle. - • **Powerhouse Performance:** Delivers a massive 160W×2 + 220W subwoofer output for immersive sound that commands attention. - • **Built to Last & Protect:** Advanced protection against overcurrent, overheating, and reverse polarity keeps your setup safe 24/7. - • **Tailored Audio Experience:** Fine-tune your sound with dedicated treble and bass controls for rich, layered audio that fits your vibe. ## Overview The DAJUNGUO ZK-HT21 is a robust 2.1 channel Bluetooth power amplifier board featuring dual TDA7498E chips delivering up to 540W total output (160W×2 + 220W subwoofer). It supports multiple inputs including Bluetooth, AUX, and USB, and offers adjustable treble and bass controls for a customized listening experience. Designed for durability and safety, it includes overcurrent, overheating, and reverse polarity protection, and operates on a wide voltage range (15V-36V DC). Compact and easy to install, it’s ideal for professionals seeking powerful, versatile audio amplification. ## Description This is a beast of performance, don't be fooled by its plain appearance. It's too big and strong, and it's very durable. I am worried that your speakers can't stand it! LOL It has two powerful TDA7498E HIFI chips: the highest output power can reach 160W*2+220W. It also has a variety of input methods, Bluetooth / AUX / USB (U disk); Bass frequency adjustment, bass volume adjustment, treble gain adjustment, Play the previous song/next song/pause/play, etc.,And it is very easy-going, 15V-36V DC current is no problem, if you don't have 15V DC power supply, 12V is no problem.About heat dissipation?Rest assured! It also has a low-noise cooling fan, so you don't need to worry about heat dissipation.Is it hard to be tamed?It's very simple, you just need to connect a suitable speaker for it, and give it enough energy at the same time, then it will not let you down. By the way, you also need to put it in your shopping cart and pay to have it.Product parameterCHIP:TDA7498EBT Version : 5.0 (No shielding, 49 FEET)Channel : 2.1(R & L+ Subwoofer)INPUT MODE:Bluetooth / AUX / USBAdaptive power supply :DC 15~36 V(Under voltage protection below 9V, and 12V power supply can also be supported)Adapter Speaker :30-200W 4-8ΩProtection Mechanism :Anti reverse connection, undervoltage, overheating, overcurrent, short circuit protectionWhat do you receive?ZK-HT21 Bluetooth power amplifier board*1 (You need to install the shell by yourself, rest assured, it is very simple!)Screwdriver*1DC connector*1Manual *1 ## Features - 【TDA7498E HIFI CHIP】The TDA7498E 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 TDA7498E high-fidelity maximum output power up to 160W+160W+220W. - 【MULTIPLE INPUT METHOD】The ZK-HT21 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 ZK-HT21 power amplifier board, you can make the sound more layered and make the bass more shocking. - 【PROTECTION FUNCTION】ZK-HT21 Bluetooth power amplifier board has multiple protection mechanisms to ensure its safe operation. It has 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.**Please Note:** Ensure that the speaker cables connected to the amplifier board are not short-circuited; otherwise, the chip may be damaged. - 【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 | B09K4WDHLK | | Best Sellers Rank | #174,136 in Electronics ( See Top 100 in Electronics ) #548 in Home Audio Amplifiers | | Brand Name | DAJUNGUO | | Customer Reviews | 4.2 4.2 out of 5 stars (281) | | Included Components | amplifier board | | Item Dimensions | 15 x 13.1 x 2.6 centimeters | | Item Weight | 327 Grams | | Manufacturer | DAJUNGUO | | Material Type | Metal, Plastic | | Maximum Supply Voltage | 24 Volts (DC) | | Minimum Supply Voltage | 12 Volts | | Model | ZK-HT21 | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Output Power | 340 Watts | | Package Type Name | Package | | Part Number | ZK-HT21 | | Specification Met | TUV | | UPC | 194852390676 | | Voltage | 36 Volts (DC) | ## Product Details - **Item dimensions L x W x H:** 15 x 13.1 x 2.6 centimeters - **Manufacturer:** DAJUNGUO - **Maximum supply voltage:** 24 Volts (DC) - **Minimum supply voltage:** 12 Volts - **Voltage:** 36 Volts (DC) ## Images ![DAJUNGUO 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/41asmcXO33L.jpg) ![DAJUNGUO 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/51NITG1GLuL.jpg) ![DAJUNGUO 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/51IN0YwJLTL.jpg) ![DAJUNGUO 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/51oYhGrdnGL.jpg) ![DAJUNGUO 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/51+hfuLzSWL.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.hk/products/394545946-dajunguo-540w-bluetooth-power-amplifier-board-with-subwoofer-2-1](https://www.desertcart.hk/products/394545946-dajunguo-540w-bluetooth-power-amplifier-board-with-subwoofer-2-1) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-09-22*