--- 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: "C$10403" currency: NIO in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.ni/products/62378448-fosi-audio-bt20a-bluetooth-stereo-amplifier-2-channel-home-audio store_origin: NI region: Nicaragua --- # 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:** C$10403 **Availability:** ✅ In Stock ## Summary > 🎶 Tiny Amp, Massive 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?** C$10403 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/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:** One-touch power and intuitive bass/treble controls make setup and tuning a breeze—perfect for busy professionals. - • **Power that Packs a Punch:** Delivers a robust 100Wx2 stereo output to energize any passive speaker setup, from bookshelf to outdoor zones. - • **Sleek Minimalist Aesthetic:** All-black, ultra-compact design blends seamlessly into any modern workspace or living area without stealing the spotlight. - • **Versatile Indoor & Outdoor Use:** Engineered for flexible placement—garage, patio, office, or backyard movie nights—upgrade your sound experience everywhere. - • **Wireless Freedom, Zero Dropouts:** Stream your favorite playlists effortlessly with stable Bluetooth connectivity up to 40 feet—no lag, no fuss. ## Overview The Fosi Audio BT20A is a compact Class D Bluetooth stereo amplifier delivering 200W total power (100Wx2 channels) to drive passive speakers with crystal-clear sound. Featuring seamless Bluetooth streaming, simple bass/treble controls, and a sleek all-black design, it’s perfect for versatile indoor and outdoor audio setups—from home offices to backyard movie nights. Lightweight and easy to install, it’s a powerful upgrade for any millennial professional seeking premium sound without the bulk. ## 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: Tiny amp, big upgrade (TV finally sounds like a TV should - Honestly one of my favorite purchases this year. This thing is small—like “where did it go?” small—but it has zero issue driving a pair of bookshelf speakers. I’ve got it hooked up to the bedroom TV through the aux output, so no remote juggling or Bluetooth reconnect nonsense—it just turns on with the TV and works. That alone made it feel way more “built-in” than I expected. Sound quality is a huge step up. Dialogue is clear, everything has more depth, and it actually feels like a real audio setup instead of thin TV speakers. Simple, clean, and way more powerful than it looks. Easy win if you’ve got speakers sitting around. Review: This is an excellent product - TL;DR: This works exactly as it should. Great piece of equipment is such a tiny form factor I've been meaning to setup a more permanent outdoor speaker solution to my backyard and was going to go with the old fashioned "run 200 feet of speaker cable" because the high receiver I bought was pretty far away and I was going to use Zone 2 for the speakers. But this little package came up on my searches and it was exactly what I wanted and more. There is an area in the backyard that we set up outdoor movies at and I use a portable speaker for sound. Instead it dawned on me that not only can i stream music from any source with this bluetooth connection to this device, I can also double up and use it for outdoor movies if I place them correctly. Well I found an outdoor telephone jack and indoor jack and I was able to run audio cable outside through those openings which were right next to where I would put the movie screen. So I was able to put two outdoor speakers in a place so that it can provide sound for movies AND they are in a general area that I can stream/play music for the backyard in general. No need to wire anything from the receiver and eliminates the need to bring out a boombox outdoor speaker for movies. What I was really happy about is how fast and solid the bluetooth connection is. I use an old laptop for streaming music and store all my ripped CDs. I thought I was going to have to hardwire the laptop to this Fosi amp because the laptop is like six years old. After a little work and trial and error, I finally figured it out and it works. The first time the laptop had a hard time finding it but now that it is in the list of known devices, it connects flawlessly. I tried iphones, tables, etc. and all of the newer devices find it with no problems. Even my echo show found it and its about 40 feet away in another room. Movies sound great, have my Lounge music running at night and I'm so happy about this setup. And, going back to my resistance to running cable, I only need 30 feet of outdoor cable for both speakers so it was convenience too. Highly recommend this product: very inexpensive, does exactly what it is supposed to and greatly enhances the flexibility of what you can do. ## 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 | #2,310 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 9,663 Reviews | | Item Type Name | Bluetooth Amplifier | | Item Weight | 567 Grams | | Manufacturer | Fosi Audio | | Mfr Part Number | BT20A | | Model Number | BT20A | | Unit Count | 1.0 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 ### ⭐⭐⭐⭐⭐ Tiny amp, big upgrade (TV finally sounds like a TV should *by R***L on April 21, 2026* Honestly one of my favorite purchases this year. This thing is small—like “where did it go?” small—but it has zero issue driving a pair of bookshelf speakers. I’ve got it hooked up to the bedroom TV through the aux output, so no remote juggling or Bluetooth reconnect nonsense—it just turns on with the TV and works. That alone made it feel way more “built-in” than I expected. Sound quality is a huge step up. Dialogue is clear, everything has more depth, and it actually feels like a real audio setup instead of thin TV speakers. Simple, clean, and way more powerful than it looks. Easy win if you’ve got speakers sitting around. ### ⭐⭐⭐⭐⭐ This is an excellent product *by R***E on August 7, 2022* TL;DR: This works exactly as it should. Great piece of equipment is such a tiny form factor I've been meaning to setup a more permanent outdoor speaker solution to my backyard and was going to go with the old fashioned "run 200 feet of speaker cable" because the high receiver I bought was pretty far away and I was going to use Zone 2 for the speakers. But this little package came up on my searches and it was exactly what I wanted and more. There is an area in the backyard that we set up outdoor movies at and I use a portable speaker for sound. Instead it dawned on me that not only can i stream music from any source with this bluetooth connection to this device, I can also double up and use it for outdoor movies if I place them correctly. Well I found an outdoor telephone jack and indoor jack and I was able to run audio cable outside through those openings which were right next to where I would put the movie screen. So I was able to put two outdoor speakers in a place so that it can provide sound for movies AND they are in a general area that I can stream/play music for the backyard in general. No need to wire anything from the receiver and eliminates the need to bring out a boombox outdoor speaker for movies. What I was really happy about is how fast and solid the bluetooth connection is. I use an old laptop for streaming music and store all my ripped CDs. I thought I was going to have to hardwire the laptop to this Fosi amp because the laptop is like six years old. After a little work and trial and error, I finally figured it out and it works. The first time the laptop had a hard time finding it but now that it is in the list of known devices, it connects flawlessly. I tried iphones, tables, etc. and all of the newer devices find it with no problems. Even my echo show found it and its about 40 feet away in another room. Movies sound great, have my Lounge music running at night and I'm so happy about this setup. And, going back to my resistance to running cable, I only need 30 feet of outdoor cable for both speakers so it was convenience too. Highly recommend this product: very inexpensive, does exactly what it is supposed to and greatly enhances the flexibility of what you can do. ### ⭐⭐⭐⭐⭐ Very good. *by R***A on July 8, 2026* A little amplifier with nice sound and good value for money. Bluetooth pairs perfectly. With a suitable multi RCA input switch box you can turn this into all you need for a simple secondary system. Just add passive speakers. iIt does not have an an active output. If you need that, look on to one of the other Fosi Bluetooth amplifiers. ## 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.ni/products/62378448-fosi-audio-bt20a-bluetooth-stereo-amplifier-2-channel-home-audio](https://www.desertcart.ni/products/62378448-fosi-audio-bt20a-bluetooth-stereo-amplifier-2-channel-home-audio) --- *Product available on Desertcart Nicaragua* *Store origin: NI* *Last updated: 2026-07-13*