--- product_id: 68014327 title: "BT20A Bluetooth Amplifier for Speakers, Mini Stereo 2 Channel Amp Class D, with TPA3116 Chips 100W x 2 and Bass Treble Controls, for Home Audio Outdoor Passive Desktop Bookshelf Speakers" brand: "fosi audio" price: "839 zł" currency: PLN in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.pl/products/68014327-bt20a-bluetooth-amplifier-for-speakers-mini-stereo-2-channel-amp store_origin: PL region: Poland --- # Bluetooth 5.0 with 50ft range 100W x 2 output power Bass & treble analog controls BT20A Bluetooth Amplifier for Speakers, Mini Stereo 2 Channel Amp Class D, with TPA3116 Chips 100W x 2 and Bass Treble Controls, for Home Audio Outdoor Passive Desktop Bookshelf Speakers **Brand:** fosi audio **Price:** 839 zł **Availability:** ✅ In Stock ## Summary > 🎵 Elevate your soundscape—small amp, massive impact! ## Quick Answers - **What is this?** BT20A Bluetooth Amplifier for Speakers, Mini Stereo 2 Channel Amp Class D, with TPA3116 Chips 100W x 2 and Bass Treble Controls, for Home Audio Outdoor Passive Desktop Bookshelf Speakers by fosi audio - **How much does it cost?** 839 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/68014327-bt20a-bluetooth-amplifier-for-speakers-mini-stereo-2-channel-amp) ## 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 - • **Tailor Your Tone:** Intuitive bass and treble controls put you in the driver’s seat for a personalized sound experience that fits your vibe. - • **Plug & Play Simplicity:** Easy setup with RCA inputs and no-fuss Bluetooth pairing means you’re rocking your favorite tunes in seconds. - • **Powerhouse Performance:** Dual 100W Class D amps deliver room-filling, distortion-free sound that commands attention. - • **Compact & Durable Design:** Sleek metal chassis fits anywhere—from your desktop to outdoor setups—built to last and impress. - • **Seamless Wireless Freedom:** Bluetooth 5.0 connectivity lets you stream crystal-clear audio effortlessly up to 50 feet away—cut the cords, not the quality. ## Overview The Fosi Audio BT20A is a compact, metal-bodied Bluetooth amplifier featuring dual 100W Class D TPA3116 chips for powerful, clear stereo sound. With Bluetooth 5.0 support up to 50ft, adjustable bass and treble controls, and a durable design, it’s engineered for seamless wireless streaming and customizable audio in home, office, or outdoor environments. ## Description Enjoy room-filling sound with this compact Bluetooth amplifier featuring 100W x 2 output, bass and treble controls, and a sleek design for home, office, or outdoor use. Review: Great little amp - I had the non-Bluetooth version which unfortunately died a death during a house move. Loved the simplicity of the design so much I went for the bluetooth version. Fantastic, no issues whatsoever, easy setup, great sound quality and fantastic range on the bluetooth. I can go upstairs in our old victorian terrace with my phone and not interrupt the music playing downstairs. Review: Great compact amplifier - Last year I had bought a Tangent Ampster BT II amplifier, which had worked great, however it recently had an issue with the power switch, so had to be sent away for repair. As I used it in my office I needed a replacement and decided to order this amplifier. I thought the Tangent Ampster was small, but this BT20A amplifier is ridiculously small! This is mainly as the power supply is external to the amplifier, which itself is bigger than the amplifier. I have it connected to a pair of Mission LX-1 MKII speakers, and I am happy to say that this amplifier easily runs these speakers, with no sign of distortion. I appreciate the treble and bass controls, as by default the treble did sound lacking and a bit stifled. The dials are nice and smooth, and the power switch toggle works without issue. At this size and price you only get 1 set of RCA inputs and 1 set of speaker outputs, but for my use case this is fine. Bluetooth works seamlessly, and the audio quality is about on par with direct RCA connection. Be aware that if you connect via bluetooth it will override the RCA input, even with no music played over bluetooth. I will say, as others have, that being able to connect to the amplifier via bluetooth without being asked for a code is a potential issue, I live in a block of apartments, so anyone could connect to it if they tried. I don't hear any hissing when not playing music, so that is another plus. Overall a great little amplifier for the price, once my other amp is back from repair I will probably relegate that to the living room as it has a remote control that is more useful. ## Features - 【Bluetooth 5.0】Featuring an integrated Bluetooth ATS2853 chip, this bluetooth amplifier supports streaming up to 50ft (15m). Effortlessly connect via Bluetooth to enjoy high-quality music from MP3, Phone, Pad, PC, or Laptop, embracing the wireless era. - 【Compact Design】Our mini amplifier offers a sturdy, space-saving design for home, office, or outdoor use. Elevate your audio experience with bass and treble controls to tweak settings as needed. - 【Immersive Audio Quality】Elevate your audio environment with room-filling sound, driven by a total output of 100W x 2 at 4 ohms. Covering a wide frequency range of 20Hz - 20kHz with less than 0.04% THD, achieve the perfect balance of volume and detail for an unparalleled home entertainment experience. - 【Superior Sound】Utilizing 2 integrated Classic TI TPA3116D2 chips, this device provides crisp, clean sound with crystal-clear highs and smooth, pure bass. It enhances voice clarity and speaker performance while maintaining lower energy consumption. - 【 Exquisite Craftsmanship】This power amplifier comes nicely packaged with a solid feel to the case and the controls and connectors. The all-metal body ensures durability, and you can enjoy the peace of mind provided by Fosi Audio's 24-month warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07BQC7GNL | | Best Sellers Rank | 5,162 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 7 in Hi-Fi Amplifiers | | Brand Name | Fosi Audio | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 9,802 Reviews | | Item Weight | 1.5 Pounds | | Manufacturer | Fosi Audio | | Manufacturer Part Number | BT20A | | Model Number | BT20A | | Unit Count | 1.0 count | ## Product Details - **Item dimensions L x W x H:** 13.2 x 9 x 3.6 centimetres - **Manufacturer:** Fosi Audio - **Maximum supply voltage:** 24 Volts - **Minimum supply voltage:** 12 Volts - **Voltage:** 230 Volts ## Images ![BT20A Bluetooth Amplifier for Speakers, Mini Stereo 2 Channel Amp Class D, with TPA3116 Chips 100W x 2 and Bass Treble Controls, for Home Audio Outdoor Passive Desktop Bookshelf Speakers - Image 1](https://m.media-amazon.com/images/I/61+cd+AMZcL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Can these be connected to skytronic 125.061 100w 4ohm ceiling speakers?** A: not sure.i have them connected to jbl 100 w speakers. copes fine **Q: Can I use it for 2 Technics speakers, 3way, 6ohm, 100w each?** A: I've got it wired to my old Gale Gold Mark 2, rated 6-8 ohms 100w I think? Sounds great! **Q: I want to use a 12v adapter. What size adapter pin/head is required? I have tried a few spares that I had, but none of them fit.** A: OD: 5.5mm; ID: 2.5mm BT20A comes with a 24V adapter, you can find one like its size. **Q: Can a technics direct drive turntable work via the rca input or does the turntable need a preamp?** A: The input sensitivity is stated as less than or equal to 280mV. If your turntable outputs I similar voltage (I guess in the range of 150 to 280mV) then I would say you probably don't need a preamp. However, if it's output is a lot less, you will need a preamp. Fosi have a range of turntable preamps to choose from. Look up the specs of your turntable to find it's output voltage range. Hope that helps. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great little amp *by A***M on 11 February 2026* I had the non-Bluetooth version which unfortunately died a death during a house move. Loved the simplicity of the design so much I went for the bluetooth version. Fantastic, no issues whatsoever, easy setup, great sound quality and fantastic range on the bluetooth. I can go upstairs in our old victorian terrace with my phone and not interrupt the music playing downstairs. ### ⭐⭐⭐⭐⭐ Great compact amplifier *by J***H on 14 May 2024* Last year I had bought a Tangent Ampster BT II amplifier, which had worked great, however it recently had an issue with the power switch, so had to be sent away for repair. As I used it in my office I needed a replacement and decided to order this amplifier. I thought the Tangent Ampster was small, but this BT20A amplifier is ridiculously small! This is mainly as the power supply is external to the amplifier, which itself is bigger than the amplifier. I have it connected to a pair of Mission LX-1 MKII speakers, and I am happy to say that this amplifier easily runs these speakers, with no sign of distortion. I appreciate the treble and bass controls, as by default the treble did sound lacking and a bit stifled. The dials are nice and smooth, and the power switch toggle works without issue. At this size and price you only get 1 set of RCA inputs and 1 set of speaker outputs, but for my use case this is fine. Bluetooth works seamlessly, and the audio quality is about on par with direct RCA connection. Be aware that if you connect via bluetooth it will override the RCA input, even with no music played over bluetooth. I will say, as others have, that being able to connect to the amplifier via bluetooth without being asked for a code is a potential issue, I live in a block of apartments, so anyone could connect to it if they tried. I don't hear any hissing when not playing music, so that is another plus. Overall a great little amplifier for the price, once my other amp is back from repair I will probably relegate that to the living room as it has a remote control that is more useful. ### ⭐⭐⭐⭐ Great little unit with punchy audio and no background noise *by G***H on 4 January 2024* I used this unit to drive pair of floor-standing speakers which I use with my PC (I like decent sound quality). This unit delivers punchy bass with no background noise on either the aux input or via Bluetooth. I'd had background noise problems with the previous amplifier (a Tangent 50W per channel unit), probably due to a ground loop. The Fosi BT20A unit background noise is completely inaudible. The unit is also very small (about 1/10 the size of the amp it replaced) but with the same output power. This is probably due to the fact that it is a Class D amplifier which makes it very efficient. It is more than capable of filling the room with sound at concert hall levels. The only issue I've had is that occasionally the Bluetooth input will not reconnect after the PC has been asleep. This is easily solved by briefly cycling the BT20A power. In short, I'd happily buy another. ## 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.pl/products/68014327-bt20a-bluetooth-amplifier-for-speakers-mini-stereo-2-channel-amp](https://www.desertcart.pl/products/68014327-bt20a-bluetooth-amplifier-for-speakers-mini-stereo-2-channel-amp) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-17*