--- product_id: 256758542 title: "300W 2.1 Channel Bluetooth Audio Amplifier Board Subwoofer Stereo AC 18 26V Home Theater Car Upgrade DIY Kit High Power Sound System" brand: "walfront" price: "$35.30" currency: USD in_stock: true reviews_count: 4 category: "Walfront" url: https://www.desertcart.us/products/256758542-300w-2-1-channel-bluetooth-audio-amplifier-board-subwoofer-stereo store_origin: US region: United States of America --- # 300W peak power output 2.1 channel stereo + subwoofer DIY-friendly compact design 300W 2.1 Channel Bluetooth Audio Amplifier Board Subwoofer Stereo AC 18 26V Home Theater Car Upgrade DIY Kit High Power Sound System **Brand:** walfront **Price:** $35.30 **Availability:** ✅ In Stock ## Summary > 🎶 Power Your Sound, Own the Room! ## Quick Answers - **What is this?** 300W 2.1 Channel Bluetooth Audio Amplifier Board Subwoofer Stereo AC 18 26V Home Theater Car Upgrade DIY Kit High Power Sound System by walfront - **How much does it cost?** $35.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/256758542-300w-2-1-channel-bluetooth-audio-amplifier-board-subwoofer-stereo) ## Best For - walfront enthusiasts ## Why This Product - Trusted walfront brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Small form factor makes installation and portability effortless without sacrificing performance. - • **DIY Upgrade Essential:** Ideal for home theater or car audio enthusiasts looking to elevate their sound system with a pro-grade amplifier board. - • **Precision Audio Engineering:** Built with 1% tolerance metal film resistors and oversized capacitors for crystal-clear, low-distortion audio. - • **Versatile 2.1 Channel Setup:** Perfectly balances left, right, and booming subwoofer channels to customize your soundscape. - • **Power That Commands Attention:** Delivers a robust 2x100W stereo and 120W subwoofer output for immersive sound. ## Overview This 300W 2.1 channel Bluetooth audio amplifier board by Walfront offers a high-power, versatile sound solution with premium components for reduced distortion and enhanced reliability. Compact and DIY-friendly, it supports home theater and car audio upgrades with a balanced stereo and subwoofer output, operating efficiently between 18-26V. ## Description Product description Walfront AC dual 18-26V 2.1 Channel Subwoofer 300W Power Amplifier Board High Power Bluetooth Audio Amplifier Board High-quality material Use high-quality five-ring 1% metal film resistors, larger filter capacitors and other electronic parts Best desig The circuit board designed is reasonable, beautiful, and cost‑effective, very suitable for DIY entry Versatile design There are 6 power amplifier tubes, 4 for left and right channels, and the other 2 are connected to the for BTL circuit for subwoofer use Specification Item Type: Power Amplifier Board The Potentiometers From Left to Right: Super bass volume, treble adjustment. The total volume of the left and right channels. Working Voltage: AC dual 18-26V (recommended dual 26V) Maximum Output Power: Left And Right Channels: 2 x 100W Subwoofer: 1 x 120W Output power: 3 x 80W Output Impedance: 4-16 Ω Circuit: A total of 6 disassembled power amplifier tubes and 2 disassembled large capacitors are used, 4 of which are responsible for left and right channels, and the other 2 are connected to BTL circuits for subwoofer use. Board Materials: Five-ring 1% metal film resistors, large filter capacitors, other brands such as for Nikkei/Panasonic. The designed of the whole circuit board is reasonable, beautiful, and low noise, which is very suitable for DIY entry. Package List 1 x Power Amplifier Board 4 x Screw 1 x User Manual Review: This product must known well about electronics - This product is not advisable Not ready to use Till now I didn’t fixed and dont know how Review: Nice - Very good ## Features - Exceptional Design & Value：Engineered with a meticulously crafted circuit board, this amplifier combines sleek aesthetics, robust functionality, and unbeatable affordability. Whether you're a seasoned DIY pro or just starting out, it's the choice for creating your own high-quality audio system.​ - Premium Components for Sound：Built with top-grade 1% tolerance five-ring metal film resistors and oversized filter capacitors, this amplifier ensures pristine audio quality, reduced distortion, and enhanced reliability for an immersive listening experience.​ - Versatile 2.1 Channel Configuration：Featuring 6 powerful amplifier tubes - 4 dedicated to the left and right channels for crisp stereo sound, and 2 connected via BTL circuit for booming subwoofer performance. Customize your audio setup to suit any genre or environment.​ - Impressive Power Output：Delivers a massive 2 x 100W to the left and right channels, and 1 x 120W to the subwoofer, providing powerful, balanced sound that fills any room. for home theaters, music systems, and more.​ - Compact & Portable：With its small form factor, this amplifier is incredibly easy to carry, store, and install. Despite its size, it packs a punch with outstanding performance, making it a convenient choice for on-the-go audio needs. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08FYP4YV1 | | Best Sellers Rank | #59,246 in Electronics ( See Top 100 in Electronics ) #160 in Home Audio Amplifiers | | Brand | Walfront | | Brand Name | Walfront | | Country Of Origin | China | | Customer Reviews | 3.1 out of 5 stars 12 Reviews | | Included Components | inc | | Item Weight | 400 Grams | | Manufacturer | Walfront | | Material Type | plastic | | Maximum Output Power | 120W | | Maximum Supply Voltage | 26 Volts | | Maximum supply voltage | 26 Volts | | Minimum Supply Voltage | 18 Volts | | Minimum supply voltage | 18 Volts | | Model | Walfronta4fg67d09t | | Mounting Type | Surface Mount | | Mounting type | Surface Mount | | Number of Channels | 3 | | Output Power | 300 Watts | | Package Type Name | Small box/bag | | Part Number | Walfronta4fg67d09t | | Specification Met | CE, WEEE | | Unit Count | 1 Count | | Voltage | 26 Volts | ## Product Details - **Manufacturer:** Walfront - **Maximum supply voltage:** 26 Volts - **Minimum supply voltage:** 18 Volts - **Mounting type:** Surface Mount - **Voltage:** 26 Volts ## Images ![300W 2.1 Channel Bluetooth Audio Amplifier Board Subwoofer Stereo AC 18 26V Home Theater Car Upgrade DIY Kit High Power Sound System - Image 1](https://m.media-amazon.com/images/I/61xg4GTMKWL.jpg) ## Customer Reviews ### ⭐ This product must known well about electronics *by M***A on 11 June 2024* This product is not advisable Not ready to use Till now I didn’t fixed and dont know how ### ⭐⭐⭐⭐⭐ Nice *by L***I on 13 April 2025* Very good ### ⭐ Not recommended *by N***Z on 17 January 2026* It's very bad item...... I'm disappointed! I received it not working 😞😣😣😩 ## Frequently Bought Together - Walfront 300W High Power 2.1 Channel Bluetooth Audio Amplifier Board AC Dual 18-26V Subwoofer Stereo Amplification - DollaTek Mini 2.0 Hi-fi Electronic Stereo Audio Assembled Amplifier Portable AMP 10W+10W 2 Channel Class-D DC 12V Digital Booster Amplifier Board Module for CD MP3 MP4 PC Speaker - DollaTek 2pcs Audio Crossover Filters Speaker System 2 Way 130W Frequency Distributor --- ## 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.us/products/256758542-300w-2-1-channel-bluetooth-audio-amplifier-board-subwoofer-stereo](https://www.desertcart.us/products/256758542-300w-2-1-channel-bluetooth-audio-amplifier-board-subwoofer-stereo) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-03*