--- product_id: 157629410 title: "Fosi Audio BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control" brand: "fosi audio" price: "1114.20 DT" currency: TND in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.tn/products/157629410-fosi-audio-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0 store_origin: TN region: Tunisia --- # Bluetooth 5.0 with 15m range 600W peak power (300Wx2) Customizable bass & treble control Fosi Audio BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control **Brand:** fosi audio **Price:** 1114.20 DT **Availability:** βœ… In Stock ## Summary > 🎧 Elevate your sound game with the Fosi BT20A Pro β€” small amp, massive impact! ## Quick Answers - **What is this?** Fosi Audio BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control by fosi audio - **How much does it cost?** 1114.20 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/157629410-fosi-audio-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0) ## 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 - β€’ **Tailor Your Sound:** Precision bass and treble controls let you craft the perfect audio vibeβ€”no presets, just pure you. - β€’ **Upgrade-Ready Op-Amps:** Swap out the plug-in Op-Amps to customize your sound signature and elevate your listening experience. - β€’ **Powerhouse Performance:** Dual 300W channels deliver room-filling, crystal-clear sound for your home setup. - β€’ **Compact & Energy Efficient:** Sleek metal design fits any space with low idle power consumption (<2.5W) for eco-conscious audiophiles. - β€’ **Seamless Wireless Connectivity:** Bluetooth 5.0 ensures stable streaming up to 15 meters with easy pairing and memory function. ## Overview The Fosi Audio BT20A Pro is a compact, high-efficiency Class D stereo amplifier featuring Texas Instruments' TPA3255 chip, delivering 300W per channel. It supports Bluetooth 5.0 for wireless streaming up to 15 meters, includes customizable bass and treble controls, and allows Op-Amp upgrades for personalized sound. Designed for small to medium rooms, it combines premium audio performance with energy-saving technology and a durable metal chassis, backed by a 2-year warranty. ## Description Product Description The upgraded version of Fosi Audio BT20A Fosi Audio BT20A Pro 600W TPA3255 Bluetooth 2.0 CH Amplifier Input: Bluetooth + RCA; Output: Passive Speakers + Pre-out Amp chip: TPA3255; MAX Output Power: 300Wx2@4Ξ© THD: ≀ 0.03%; SNR: β‰₯108dB; Frequency Response rRange: 20Hz-20kHz(Β±1.2dB) Bluetooth Distance: β‰₯15m; Bluetooth Transmission Format: SBC/AAC Bluetooth 5.0 Connectivity Allowing you to connect your devices such as mobile phones and tablets from a greater distance. Unique Design for Sound Control Experience the authentic sound without any added effects by adjusting them to their middle points. Full-range Pre-Out Output Easily connect to a powered subwoofer, speaker, or another amplifier for versatile audio options. Great for Small/Medium Sized Rooms Suitable for desktop, free your living room from CD suitcase around and also large amplifiers. Texas Instrument TPA3255 Chip Has a unique smart algorithm that optimizes the output stage for max efficiency and min distortion. Upgrade Audio Performance Achieve a Distinct and Exceptional Sound Quality The two plug-in NE5532 Op-Amps can be replaced by LME49720HA/MUSES02/OPA2134PA Op-Amps, etc. High Precision and Stability Inductance Values Low DC resistance and excellent frequency characteristics which improve performance Energy-efficient The 2-channel amplifier uses a low standby power feature that reduces the power consumption when the amplifier is not in use, contributing to energy savings. Stunning Bluetooth Design Clear the Bluetooth pairing by holding the volume control for five seconds. Benefit from easy pairing with the memory function and an alert tone. Fosi Audio Amplifiers Comparison BT20A PRO BT20A MAX BT20A BT30D PRO HT4S ZA3 Review: Perfect for what I need - Great quality amp for the price. Nice and small to keep a clean setup. Easy plug and play setup and Bluetooth connectivity. Works perfect with my speakers giving good volume. Review: Brilliant Budget Audio - Having had a few different hifi setups in my time, I am pleasantly surprised by this latest purchase. I'll list some pros and cons and then give a bit more information about this Fosi Audio amplifier. Pros: - Size: I have a Denon amplifier and Mission bookshelf speakers. The Denon amplifier is amazing, but it's large and I haven't had enough space to put the amp and speakers together on a surface. It's probably the main reason I bought this product. It means I can still use my lovely mission speakers, and the speakers and Fosi amp all fit on a surface I have free. - Sound: If you are getting this, having never had a proper amp+speakers hifi setup, it's probably going to blow you away. The sound quality is very impressive for such a small unit. Having the treble and bass controls are a nice touch. Pair this little amp with some decent speakers and you'll be happy. For the price and considering the size, it's wonderful. - Bluetooth: Nowadays, for the sake of convenience, I use Bluetooth for my music often. Music does sound very good simply streamed from my phone through Bluetooth to the Fosi unit. There is an RCA out for any peripherals (such as a turntable or cd player etc). I haven't had any issues using the Bluetooth. -Build: The unit is made of metal. I've read some reviews mentioning the switches felt cheap or loose....maybe I'm lucky, but mine is fine. Great build quality and sturdy controls and ports. Cons: I can't really think of any. My Denon amp is a fair bit better than this unit in terms of sound and power output, but buying a new amp similar to my Denon unit would cost in excess of Β£300. And there isn't exactly a huge difference between them. This amplifier got my wonderful Mission speakers back into action and since I've had the amplifier, it's made listening to music really exciting again. I'd say it's good enough for bedrooms or small living rooms. If the room you have it in is particularly big, you may need something a little more powerful. Having a remote control would have been a nice addition. Ultimately, im really impressed with this. It's a quality audio product for not much money. Pair it with some quality speakers and you won't be disappointed. ## Features - TI TPA3255 Chip Amplifier with 300 Watts x 2 Power Output: Advanced feedback design and high-speed gate driver error correction for efficient and high-quality audio performance, with low idle losses of <2.5W. - Upgraded High-Efficiency: A significant upgrade from the BT20A amplifier with replaceable Op-Amps for customized. You can replace the two plug-in NE5532 Op-Amps with LME49720HA/MUSES02/OPA2604AP/OPA2134PA/LM4562/NJM4556AD Op-Amps to achieve a unique sound quality. With SNRβ‰₯108dB and THD≀0.005%. - Enhanced Bluetooth 5.0 Connectivity: The Bluetooth pair can be cleared by pressing and holding the volume control for five seconds. In addition, it has a memory Function for Easy Pairing and Alert Tone. - Customizable Sound with a Wide Range of Bass and Treble Controls: The BT20A Pro home audio amplifier offers a unique design for sound control. Enjoy original sound without effects by setting treble and bass effects to the middle point. - What you Get: BT20A Pro Power Amplifier x1, Bluetooth Antenna x1, 32V 5A Power Adapter x1, AC Cord x1, User Manual x1, our worry-free 24-month warranty, and friendly customer service. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JVFY27T | | Best Sellers Rank | 1,720 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2 in Hi-Fi Amplifiers | | Box Contents | Bluetooth Antenna x1, 32V 5A Power Supply x1 | | Brand Name | Fosi Audio | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 2,838 Reviews | | Item Weight | 567 Grams | | Manufacturer | Fosi Audio | | Manufacturer Part Number | BT20A Pro | | Model Number | BT20A PRO | | Product Warranty | 2 years | | Unit Count | 1.0 count | ## Product Details - **Item dimensions L x W x H:** 14.2 x 10.7 x 0.4 centimetres - **Manufacturer:** Fosi Audio - **Maximum supply voltage:** 32 Volts (DC) - **Minimum supply voltage:** 32 Volts - **Voltage:** 32 Volts ## Images ![Fosi Audio BT20A Pro 300W x2 TPA3255 Bluetooth 5.0 Home Audio Stereo 2 Channel Amplifier Receiver Mini Hi-Fi Class D Upgraded Integrated Amp for Speakers with Bass Treble Control - Image 1](https://m.media-amazon.com/images/I/61ne1lo34ML.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Will you be making the bt20a pro available on amazon with the 48v power supply?** A: Hi, BT20A Pro is available with the 48v power supply. **Q: Is amp a similar quality to the tangent ampster btii?** A: Yes,or better,think this is the best sub Β£100 BY amplifier on the market,has input for cd or turntable and a sub woofer out,great item **Q: How do you switch between bluetooth and RCA inputs if there's no selector switch?** A: Push the volume knob, however this amp auto defaults to Bluetooth if you have the source bluetooth switched on. So to select RCA connection turn Bluetooth off on the source. **Q: Does it come with a power supply?** A: Yes, almost half of the size of the amp itself ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect for what I need *by J***S on 29 May 2026* Great quality amp for the price. Nice and small to keep a clean setup. Easy plug and play setup and Bluetooth connectivity. Works perfect with my speakers giving good volume. ### ⭐⭐⭐⭐⭐ Brilliant Budget Audio *by M***E on 1 December 2024* Having had a few different hifi setups in my time, I am pleasantly surprised by this latest purchase. I'll list some pros and cons and then give a bit more information about this Fosi Audio amplifier. Pros: - Size: I have a Denon amplifier and Mission bookshelf speakers. The Denon amplifier is amazing, but it's large and I haven't had enough space to put the amp and speakers together on a surface. It's probably the main reason I bought this product. It means I can still use my lovely mission speakers, and the speakers and Fosi amp all fit on a surface I have free. - Sound: If you are getting this, having never had a proper amp+speakers hifi setup, it's probably going to blow you away. The sound quality is very impressive for such a small unit. Having the treble and bass controls are a nice touch. Pair this little amp with some decent speakers and you'll be happy. For the price and considering the size, it's wonderful. - Bluetooth: Nowadays, for the sake of convenience, I use Bluetooth for my music often. Music does sound very good simply streamed from my phone through Bluetooth to the Fosi unit. There is an RCA out for any peripherals (such as a turntable or cd player etc). I haven't had any issues using the Bluetooth. -Build: The unit is made of metal. I've read some reviews mentioning the switches felt cheap or loose....maybe I'm lucky, but mine is fine. Great build quality and sturdy controls and ports. Cons: I can't really think of any. My Denon amp is a fair bit better than this unit in terms of sound and power output, but buying a new amp similar to my Denon unit would cost in excess of Β£300. And there isn't exactly a huge difference between them. This amplifier got my wonderful Mission speakers back into action and since I've had the amplifier, it's made listening to music really exciting again. I'd say it's good enough for bedrooms or small living rooms. If the room you have it in is particularly big, you may need something a little more powerful. Having a remote control would have been a nice addition. Ultimately, im really impressed with this. It's a quality audio product for not much money. Pair it with some quality speakers and you won't be disappointed. ### ⭐⭐⭐⭐⭐ Great power, lovely device *by R***K on 5 October 2025* I love this thing, and can't believe how loud it is! So one thing to mention is that you can't get the full 300w of power with the supplied power supply (32v) - they sell a 48v one I think on Amazon if you need that. Yet, the room I am in is 5m by 3.5m, and I don't think I'll ever push the thing past 1/2 way. Most of the time, considerably less than that. So the above does not bother me. It is powering some Cambridge Audio SX-50, and collectively they sound amazing! I briefly had some Edifier active speakers before this (cheaper, but not by that much), but sound comparison wise, there's no contest. So this is a pretty simple device - no remote, and not a lot going on controls wise, but having the two inputs (one physical, and the other bluetooth) is perfect for my needs. And the manual treble and bass are useful at times too. I've not got a sub plugged into this - for my needs, I don't think I need it (the speakers are pretty good without), so can't comment on that, but may add something in the future, so good to have the option. I'm using this for armature music production, and also for listening to music as I work, and its great for both! ## Frequently Bought Together - Fosi Audio BT20A Pro Bluetooth 5.0 Amplifier, 300W x2 Wireless Amp, TPA3255 2 Channel Mini Class D Integrated Home Audio Outdoor Stereo Receiver with Bass Treble Control for Passive Speakers - 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/157629410-fosi-audio-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0](https://www.desertcart.tn/products/157629410-fosi-audio-bt20a-pro-300w-x2-tpa3255-bluetooth-5-0) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-09*