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Price: £109.99
(as of Oct 05, 2025 01:17:03 UTC – Details)
Fosi Audio BT20A Pro
Fosi Audio BT20A Pro Bluetooth Amplifier
The Fosi Audio BT20A Pro is a powerful and feature-rich Bluetooth amplifier designed to deliver exceptional sound quality and versatility for home audio enthusiasts. With its advanced TI TPA3255 amp chip and customizable sound options, this amplifier is perfect for those seeking an immersive audio experience.
Introduction
The Fosi Audio BT20A Pro is a 2×300 Watts mini stereo amplifier that offers unparalleled audio precision, tailored sound customization, and seamless Bluetooth connection. Whether you’re a music lover, a home theater enthusiast, or a professional audio engineer, this amplifier is sure to impress.
Features & Specifications
- Advanced TI TPA3255 amp chip for exceptional sound quality
- Customizable sound options with bass and treble control
- Interchangeable Op-Amps for unique sound signature
- Seamless Bluetooth 5.0 connection for high-quality audio streaming
- Comprehensive package includes power amplifier, Bluetooth antenna, power supply, AC cord, and user manual
- 24-month dedicated customer service for peace of mind
Pros and Cons
Pros:
- Exceptional sound quality with SNR ≥108dB and THD ≤0.005%
- Customizable sound options for tailored audio experience
- Interchangeable Op-Amps for unique sound signature
- Seamless Bluetooth connection for convenient audio streaming
- Comprehensive package with dedicated customer service
Cons:
- May require technical knowledge for optimal setup and customization
- Limited to 2×300 Watts power output, may not be suitable for large-scale audio applications
Review
The Fosi Audio BT20A Pro delivers outstanding performance, quality, and ease of use. The advanced TI TPA3255 amp chip provides exceptional sound quality, while the customizable sound options and interchangeable Op-Amps allow for tailored audio experiences. The seamless Bluetooth connection ensures convenient audio streaming, and the comprehensive package provides everything needed for a seamless setup. Overall, the Fosi Audio BT20A Pro offers excellent value for money, making it an ideal choice for home audio enthusiasts.
Who Should Buy This?
The Fosi Audio BT20A Pro is perfect for:
- Home audio enthusiasts seeking exceptional sound quality and customization options
- Music lovers who want to upgrade their audio experience with tailored sound profiles
- Home theater enthusiasts who require a reliable and high-quality amplifier for their setup
- Professional audio engineers who need a versatile and customizable amplifier for their work
Final Verdict
If you’re looking for a powerful, feature-rich, and customizable Bluetooth amplifier, the Fosi Audio BT20A Pro is an excellent choice. With its exceptional sound quality, tailored sound options, and seamless Bluetooth connection, this amplifier is sure to impress. Check it out on Amazon today and experience the ultimate in home audio entertainment!
Liam –
Incredible!
Incredible product, the sound quality is great over Bluetooth and the range is unbelievable. Thereâs also very little delay in the playback, so watching videos are no issue with the audio syncing nicely. The whole unit is so small which was very important for my space, yet performs well. Iâm not an audiophile but I can definitely say the average consumer would be thrilled by the output, and not to mention the value for money over the competition.
Mule –
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 £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.
Francisco –
Good Value
PROS- Drives my 100W speakers beautifully- A very discrete unit, fits in the palm of your hand- Easy to plug in and conceal if necessary- The case has a really good feel to it- Nice design and smooth corners- Has subwoofer connection to add bass should your speakers/setup require- Bluetooth connectivity excellent even when going downstairs with mobile in pocket (2-floor house)- Being able to disconnect the paired bluetooth device is a brilliant idea- Blue LED showing Bluetooth is paired- Red LED showing power on- Power adaptor has perfectly acceptable size- Midpoint knobs for treble and bass, allowing setting these at zero (brilliant feature)- Bass and treble controls produce excellent results in sound- Red volume knob of larger size- I’m sure there are many technical reasons why this is an excellent unitCONS- I do not have any issues with this product.SUGGESTIONS:- Provide rubber feet to install the unit vertically on its side (however anyone can get their own rubber feet or even velcro straps/adhesive velcro straps thereforeCONCLUSIONIt’s hard to think what else could be improved with this product (maybe create 10 or 15 case colours to suit the needs of customers whose audio setups need to sound as good as they look).I’ll get rid of my Cambridge Audio amplifier as soon as I can because it’s simply no longer necessary to have something of that size to drive my audio needs.
Pig Puf –
Give it time to burn in then its 5 stars
Used as a desktop system with Mp3 player (wired) and a soundblaster dongle from my laptop. I have a set of vintage Canton 4 ohm speakers that are efficient connected with banana plugs and pure copper wire. I am using the 32v supplied power supply.I almost returned this as when I first started using it the treble range sounded distorted and overall the amp sounded thin. Fast forward to around 20 hours use and the little Fosi is revealing itself to be a very capable unit. The separation, clarity and reserves of power are now all evident. The control through the range is now very good , excellent bass and clear treble. The tone controls work well allowing acurate amounts of adjustment if needed.Connection: Sorry I don’t use bluetooth but I expect it works well. The 2 phono sockets are fine to use with whatever you plug in.The 3.5mm pre out: Disappointed with this it would not send anything to my powered sub, not a deal breaker but research on the net shows this is a common complaint. Fosi should have put a dedicated sub out for this.The build quality is fine and with the 32v supply only ever gets slightly warm. I have also read that the alternative 48v supply causes the amp to run quite hot. The output for me is enough and I can listen clearly in the room away from my desk.Apart from the issue with the pre-out I can still give 5 stars due to the overal qualities of this little amp.
Lothar Bongartz –
The device sounds great and is easy to install.An additional digital USB input would be helpful for PC output.The knobs are too close together for comfort.I bought my second device now. It’s the perfect solution for computer output or streaming to your loudspeakers.However, there is room for improvement:1) There is enough space on the front plate to have more distance between the knobs. It’s easier to turn the knobs if your fingers fit between the knobs.2) I have to bend to see what the bass and treble knob are. The description would be more convenient on top of the knobs instead of being hidden beneath them.3) The analogue-to-digital converter in your PC might be of low quality. A digital USB-C input could improve the quality and would be very convenient.4) Earphones can skip forward and backward through your music list. You could add this functionality by pressing the bass and treble knobs respectively.
Nic –
Der Fosi Audio BT20A Pro liefert richtig guten Klang und überzeugt mit einfacher Bedienung. Besonders praktisch finde ich den Pre-Out-Ausgang für den Anschluss eines Subwoofers oder weiterer Geräte. Bluetooth funktioniert einwandfrei, Bass und Höhen lassen sich nach Geschmack regeln. Top Preis-Leistungs-Verhältnis!
Uncino –
Il miglior abbinamento al mio WiiM Pro testato fino a questo punto, solo un po’ meno “caldo” del valvolare (ma sarebbe strano il contrario visto che quello ha un costo dieci volte maggiore e più di 20kg), ma incredibilmente buono per il suo prezzo.Comparato sia con il V3 della stessa Casa che con A07 di Aiyima esce vittorioso grazie alla presenza del controllo di tono.Non di tanto eh, anche quelli suonano molto bene (vedi mia recensione), ma la presenza del controllo di tono evita di dover impiegare l’equalizzatore digitale del WiiM Pro. Non è che questo non vada bene, soprattutto il parametrico, ma sporca un pelino il suono.Proprio sul controllo di tono occorre spendere due parole: è molto efficace, correttamente posizionato come frequenza di intervento, sia per gli alti che per i bassi, e non introduce il minimo rumore.Un po’ peggio va per la parte Bluetooth, obiettivamente non all’altezza del resto.Il confronto è stato condotto usando come sorgente sia Amazon Music Unlimited che Radio Paradise (ovviamente steam FLAC).Questo all’hardware, oltre al già citato WiiM Pro, un paio di diffusori Chario Hiper 1000 (mi piace molto quel tipo di sonorità ).Ultima nota: a meno che non abbiate un ambiente molto grande anche su diffusori da 8Ω (che consiglio) l’alimentatore standard da 32V è più che adeguato, e questo vale per tutti gli amplificatori basati su TPA3255.L’alimentazione 48V offre certamente qualcosa in più sia sotto il profilo della potenza massima che nel dettaglio, ma tutto sommato non al punto di giustificare l’acquisto di un alimentatore che da solo costa più della metà dell’intero amplificatore.Acquisto raccomandato?Ma certo che sì, senza sé e senza ma, lo ricomprerei domani mattina!Aggiornamento: come si vede dalla nuova fotografia, ho completato il nuovo impianto con DAC SMSL Sanskrit 10th MKIII (perso “usato come nuovo” all’incredibile prezzo di 67â¬).Adesso il suono di questo piccolo impianto è letteralmente imbattibile.
Sanjeev pogi –
Iâm running this amp with four Yamaha outdoor speakers, and it sounds pretty good. Donât expect it to be super loud like a big home theater system, but it has plenty of power for hanging out on the patio or in the backyard.What I really like is having full control over the bass and trebleâmakes it easy to tune the sound just the way I want it. The Bluetooth setup was super quick and simple, paired right away and hasnât given me any issues.Overall, itâs a solid little amp. Simple, reliable, and the music comes through clear. Perfect for casual listening outdoors.
Murat GörentaÅ –
Ãrünü fiyatına göre deÄerlendirmenin daha doÄru olacaÄı kanısındayım. Dali Oberon 3 ile kullanıyorum. Boyutuna göre, gerek detay, gerek bas ve tiz performansı olarak memnunum. Hızlı ve sorunsuz teslimat için Amazon’a teÅekkürler.