--- product_id: 62378448 title: "Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker" brand: "fosi audio" price: "€ 189.47" currency: EUR in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.fi/products/62378448-fosi-audio-bt20a-bluetooth-stereo-amplifier-2-channel-home-audio store_origin: FI region: Finland --- # Seamless Bluetooth 5.0 streaming 200W max output power Compact all-black Class D design Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker **Brand:** fosi audio **Price:** € 189.47 **Availability:** ✅ In Stock ## Summary > 🎶 Small Amp, Big Vibes: Elevate Your Sound Game Anywhere ## Quick Answers - **What is this?** Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker by fosi audio - **How much does it cost?** € 189.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/62378448-fosi-audio-bt20a-bluetooth-stereo-amplifier-2-channel-home-audio) ## Best For - fosi audio enthusiasts ## Why This Product - Trusted fosi audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Simplicity:** Intuitive one-touch power and easy bass/treble controls make tuning your sound a breeze—no tech degree required. - • **Power that Packs a Punch:** Delivers a robust 100Wx2 stereo output to energize any passive speaker setup, from bookshelf to garage. - • **Sleek Minimalism Meets Durability:** All-black, one-piece Class D chassis blends into any modern workspace or living area while ensuring longevity. - • **Wireless Freedom, No Strings Attached:** Effortlessly stream your favorite playlists with stable, low-latency Bluetooth connectivity. - • **Versatile Placement, Ultimate Flexibility:** Compact footprint fits seamlessly in offices, patios, or small venues—wherever your vibe demands premium sound. ## Overview The Fosi Audio BT20A is a compact yet powerful Class D Bluetooth stereo amplifier delivering 200W max output (100Wx2 channels). Designed for passive speakers, it offers seamless Bluetooth streaming, simple bass/treble tuning, and a sleek all-black chassis that fits effortlessly into any space. Ideal for home, office, or outdoor use, it combines high performance with minimalist style and easy setup, backed by a 24-month warranty and stellar customer support. ## Description desertcart.com: Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker : Electronics Review: Excellent Sound and Great Value - I’m very impressed with the Fosi Audio BT20A. It’s compact, well built, and surprisingly powerful for such a small amplifier. The Bluetooth connection was quick and stable, and the sound quality is clear with plenty of power for my speakers. The controls are simple and easy to use, and I really like the clean, minimalist design. It’s also great that it doesn’t take up much space, making it perfect for a home audio setup. For the price, the performance is excellent. Highly recommended for anyone looking for a simple, compact, and powerful Bluetooth stereo amplifier! Review: Small, but Powerful. Great Support - When it comes to amplifiers, the Fosi Audio BT20A Bluetooth Speaker Amp is an undisputed game-changer. Encased in a modestly compact form, this small but mighty beast asserts the timeless adage that size isn't everything. It defies its dimensions, delivering an impressive level of power that can rival or even surpass larger counterparts. The first thing you'll notice about the BT20A is its design. Don't be fooled by its diminutive size; this amplifier does not compromise on quality or performance. The unit packs a serious punch for a device of its stature. It's engineered with high power output to deliver crystal clear, rich, and detailed sound to your speakers. The BT20A boasts an impressive feature set, including its Bluetooth functionality. The Bluetooth connection is smooth and reliable, extending a generous range that grants you the freedom to roam while maintaining control over your audio. Whether you're looking to pump up the volume for a backyard barbecue or craving some soothing tunes in the tranquility of your study room, the BT20A delivers outstanding performance with style and ease. But what truly sets the Fosi Audio BT20A apart is not just its superb performance and compact design; it's the company's exceptional commitment to customer satisfaction. I experienced a minor hiccup with the Bluetooth connectivity of the first unit, but Fosi Audio's customer service was absolutely stellar. They promptly sent out a replacement, ensuring that the minor setback was resolved efficiently and I could get back to enjoying my music without delay. Fosi Audio's willingness to stand by their product and swiftly address any issues is highly commendable. It's a testament to their dedication to providing a top-notch customer experience, further adding to the already spectacular appeal of the BT20A. In conclusion, the Fosi Audio BT20A is a true titan in a compact package. Its powerful output, seamless Bluetooth connectivity, and Fosi Audio's stellar customer service make it an unparalleled choice for anyone looking to enhance their audio experience. If you're seeking a small, powerful, and reliable Bluetooth amplifier, I wholeheartedly recommend the Fosi Audio BT20A. It may be small in size, but it's big on performance. ## Features - ENTRY-LEVEL POWER AMPLIFIER: Experience powerful sound with the BT20A Bluetooth amplifier, boasting an impressive 100Wx2 maximum output power. It can power multiple speaker cabinets, which can be used at home or in small venues - EFFECTIVE, SIMPLE, AND NO FRILLS: The compact design allows it to be used in any space where passive speakers are required. It can be used in an office, a bedroom, a living room, a garage, or even on the patio - EASY TO SET UP: The 2 Channel amplifier has a straightforward installation and a one-touch power switch for easy operation. The smooth bass and treble controls allow tuning to taste and the connected bookshelf speakers - BLUETOOTH AND RCA INPUTS: The seamless Bluetooth connectivity allowing you to stream music directly from your phone without any dropouts or delays, delivering crystal-clear sound and impressive volume for your home audio setup - ALL-BLACK DESIGN: This Class D amplifier features an integrated one-piece design that not only adds to its looks but also makes it more durable. With its stylish look, it fits wonderful on any shelf and complements most home decor ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BQC7GNL | | Best Sellers Rank | #2,740 in Electronics ( See Top 100 in Electronics ) #4 in Audio Component Amplifiers | | Brand | Fosi Audio | | Built-In Media | Fosi Audio BT20A Amplifier x1, 24V 4.5A Power Supply x1, User Manual x1 | | Customer Reviews | 4.5 out of 5 stars 9,746 Reviews | | Item Type Name | Bluetooth Amplifier | | Item Weight | 567 g | | Manufacturer | Fosi Audio | | Mfr Part Number | BT20A | | Model Number | BT20A | | Number of Items | 1 | | Unit Count | 1 Count | | Warranty Description | 24-month manufacturer | ## Product Details - **Item dimensions L x W x H:** 5.2 x 3.54 x 1.42 inches - **Manufacturer:** Fosi Audio - **Maximum Supply Voltage:** 24 Volts - **Minimum Supply Voltage:** 12 Volts (DC) - **Voltage:** 230 Volts ## Images ![Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker - Image 1](https://m.media-amazon.com/images/I/61+cd+AMZcL.jpg) ## Questions & Answers **Q: How do I switch between RCA and Bluetooth on the BT20A?** A: Bluetooth takes priority over RCA. To switch to RCA, restart the device or disconnect Bluetooth. **Q: What is the position for flat frequency response on the amplifier?** A: The middle position (12 o’clock) provides a flat frequency response. **Q: What type of DC plug do I need for the BT20A’s power supply?** A: The DC barrel connector dimensions are 5.5*2.5mm. **Q: What's the upgraded version of the BT20A amp, and what accessories come with it?** A: -If you're seeking the upgraded version of the BT20A, please consider the BT20A Pro amp. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent Sound and Great Value *by A***A on August 8, 2026* I’m very impressed with the Fosi Audio BT20A. It’s compact, well built, and surprisingly powerful for such a small amplifier. The Bluetooth connection was quick and stable, and the sound quality is clear with plenty of power for my speakers. The controls are simple and easy to use, and I really like the clean, minimalist design. It’s also great that it doesn’t take up much space, making it perfect for a home audio setup. For the price, the performance is excellent. Highly recommended for anyone looking for a simple, compact, and powerful Bluetooth stereo amplifier! ### ⭐⭐⭐⭐⭐ Small, but Powerful. Great Support *by W***S on May 20, 2023* When it comes to amplifiers, the Fosi Audio BT20A Bluetooth Speaker Amp is an undisputed game-changer. Encased in a modestly compact form, this small but mighty beast asserts the timeless adage that size isn't everything. It defies its dimensions, delivering an impressive level of power that can rival or even surpass larger counterparts. The first thing you'll notice about the BT20A is its design. Don't be fooled by its diminutive size; this amplifier does not compromise on quality or performance. The unit packs a serious punch for a device of its stature. It's engineered with high power output to deliver crystal clear, rich, and detailed sound to your speakers. The BT20A boasts an impressive feature set, including its Bluetooth functionality. The Bluetooth connection is smooth and reliable, extending a generous range that grants you the freedom to roam while maintaining control over your audio. Whether you're looking to pump up the volume for a backyard barbecue or craving some soothing tunes in the tranquility of your study room, the BT20A delivers outstanding performance with style and ease. But what truly sets the Fosi Audio BT20A apart is not just its superb performance and compact design; it's the company's exceptional commitment to customer satisfaction. I experienced a minor hiccup with the Bluetooth connectivity of the first unit, but Fosi Audio's customer service was absolutely stellar. They promptly sent out a replacement, ensuring that the minor setback was resolved efficiently and I could get back to enjoying my music without delay. Fosi Audio's willingness to stand by their product and swiftly address any issues is highly commendable. It's a testament to their dedication to providing a top-notch customer experience, further adding to the already spectacular appeal of the BT20A. In conclusion, the Fosi Audio BT20A is a true titan in a compact package. Its powerful output, seamless Bluetooth connectivity, and Fosi Audio's stellar customer service make it an unparalleled choice for anyone looking to enhance their audio experience. If you're seeking a small, powerful, and reliable Bluetooth amplifier, I wholeheartedly recommend the Fosi Audio BT20A. It may be small in size, but it's big on performance. ### ⭐⭐⭐⭐⭐ Surprisingly effective, breathes new life into silent speakers *by G***G on January 27, 2021* I don't write reviews anymore lately but I've had a good experience with the Fosi BT20A that I feel is worth sharing. I purchased the BT20A because I had a long-silent pair of Signet SL-260 speakers from over a decade ago that were great budget audiophile speakers but had sat unused. I just didn't have any more 2-channel or AV systems in the house that needed a set of speakers. So I figured that I'd bring them fully into the future-present by integrating them into my Alexa ecosystem. This consists of quite a few Echo Dots situated around the house, including my office. I had been using a twinkie-sized BT speaker with the Dot in my office and you can imagine that the sound quality was unimpressive to say the least. Based on research, the BT20A seemed exactly what I needed, a reasonably powerful Bluetooth enabled device that could directly drive unpowered speakers with a quality signal at reasonable levels of volume. As for this goal, the BT20A met my needs exactly and fully. Now I can stream my Amazon Music Unlimited playlists from the office Dot to the BT20A which drives the SL-260 speakers directly. Now I can listen to my music at high quality. Very satisfying. I should note one quirk of the system. The BT20A was able to quickly be detected and linked using my iPhone 12 Pro, but initially I could not get the Alexa app or the Echo Dot directly to find the BT20A. Internet and forum searches here were fruitless. Finally, I tried something unusual. Thinking that maybe for whatever reason the Echo Dot's search wasn't triggering the BT linking capability of the BT20A, i tried it again at the same time as I put another BT speaker into linkup mode. Immediately, the Alexa app showed that my Echo Dot now saw the BT speaker AND the Fosi. From there I selected the Fosi and from that point on, the Dot and BT20A could find each other any time I wanted to use the system. Odd but works. Fosi support actually responded within 10 hrs of my help request and were pleasant but I solved this one on my own. Never would I have imagined that there was such a device as this, but now that I've found it, I can bring high quality sound anywhere around the house I want without having to move stereo components or settle for typical BT portable speakers. And at a cost that's actually an amazing value. I love it! I have included a picture of my super little system. Super happy overall with the sound for dollar punch these little components. ## Frequently Bought Together - Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker - Banana Plugs with Dual Set Screws,Black and Red Aluminum Shell,6 Pairs - Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft --- ## 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.fi/products/62378448-fosi-audio-bt20a-bluetooth-stereo-amplifier-2-channel-home-audio](https://www.desertcart.fi/products/62378448-fosi-audio-bt20a-bluetooth-stereo-amplifier-2-channel-home-audio) --- *Product available on Desertcart Finland* *Store origin: FI* *Last updated: 2026-08-21*