Fosi Audio BT20A Pro Amplificatore Bluetooth 2.0 CH TPA3255 da 600W

  • Ingresso: Bluetooth + RCA; Uscita: Altoparlanti passivi + Pre-out
  • Chip amplificatore: TPA3255; Potenza massima in uscita: 300Wx2@4Ω
  • THD: ≤ 0,005%; SNR: ≥108dB; Gamma di risposta in frequenza: 20Hz-20kHz(±1,2dB)

Lato Anteriore

Parte Posteriore

Variabilità della Potenza

Dettagli del prodotto

Descrizione
  • 300 Watt x2 di potenza in uscita: fornita dal chip TI TPA3255 che presenta un design avanzato del feedback e una correzione proprietaria degli errori del driver gate ad alta velocità. Oltre all'eccellente performance audio, il TPA3255 raggiunge un'alta efficienza energetica e perdite in modalità inattiva molto basse, inferiori a 2,5W.

  • Alta efficienza: un significativo miglioramento rispetto all'amplificatore BT20A. Ci sono due Op-Amp NE5532 plug-in che possono essere sostituiti da SS3602, MUSES02,  OPA2134PA Op-Amp, ecc. Per creare una diversa qualità del suono. SNR≥108dB; THD≤0,005%.

  • Connettività Bluetooth 5.0 aggiornata: premendo e tenendo premuto il controllo del volume per cinque secondi, è possibile cancellare l'associazione Bluetooth. Inoltre, ha una funzione di memoria Bluetooth, quindi può essere facilmente associato la volta successiva. Riceve anche un tono di avviso.

  • Controllo del suono: con il suo design unico, l'amplificatore BT20A Pro per audio domestico ha un'ampia gamma di controlli di bassi e acuti. In alternativa, è possibile portare gli effetti degli acuti e dei bassi a un punto intermedio per ascoltare il suono originale senza effetti.

  • Cosa ottieni: Amplificatore di potenza BT20A Pro x1 (la spina dell'adattatore di alimentazione corrisponderà al paese del tuo indirizzo di consegna), Antenna Bluetooth x1, Adattatore di alimentazione 32V 5A x1, Cavo CA x1, Manuale utente x1, la nostra garanzia di 24 mesi senza preoccupazioni e un servizio clienti cordiale.

  • Consigli: se non hai molta necessità di un amplificatore Bluetooth, puoi considerare il TB10D. Ha lo stesso chip e potenza in uscita, ma a un prezzo più conveniente!
Specifiche tecniche
  • Potenza in uscita: 300Wx2 @4Ω
  • Impedenza di terminazione: 2-8Ω
  • Modalità di ingresso: Bluetooth + RCA
  • Modalità di uscita: Altoparlanti passivi + Pre-out
  • Gamma di frequenza: 20Hz-20kHz(±1.2dB)
  • THD: ≤0.005%
  • SNR: ≥108dB
  • Chip Set: TPA3255
  • Distanza di trasmissione Bluetooth: Fino a 15 metri
  • Formato di trasmissione Bluetooth: SBC/AAC
  • Dimensioni del dispositivo: 12.7 x 12.7 x 2.54 cm
  • Gamma di ingresso CC: 24-48V
  • Alimentazione: 32V 5A o 48V 5A
Cosa c'è nella scatola?
  • Amplificatore di potenza BT20A PRO x 1

  • Antenna Bluetooth x 1

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Fosi Audio BT20A Pro Amplificatore di Potenza Stereo Bluetooth
From €89.99

Fosi Audio BT20A Pro Amplificatore di Potenza Stereo Bluetooth

Tipo
Amplificatore 2.0 canali Bluetooth
Potenza massima in uscita
2x 300W@4Ω
Input
RCA/Bluetooth
Output
Uscita altoparlante, Pre-Out
Controllo Acuti e Bassi
Sì
Treble & Bass Control
≤ 0,005%
Rapporto segnale/rumore
≤ 0.005%
Impedenza di terminazione
≥108dB
Terminating Impedance
2-8Ω
Chip Amplificatore
TPA3255
Alimentazione
32V/5A, 48V/5A
Amplificatore stereo Bluetooth Fosi Audio BT20A
From €79.99

Amplificatore stereo Bluetooth Fosi Audio BT20A

Tipo
Amplificatore Bluetooth 2.0 canali
Potenza massima in uscita
100W x2
Input
RCA/Bluetooth
Output
Altoparlanti passivi
Controllo Acuti e Bassi
Sì
Treble & Bass Control
≤ 0,5%
Rapporto segnale/rumore
≥98 dB
Impedenza di terminazione
≥98dB
Terminating Impedance
2-8Ω
Chip Amplificatore
TPA3116 x2
Alimentazione
24V/4.5A
Fosi Audio BT20A MAX Amplificatore di Potenza Stereo Bluetooth
From €239.99

Fosi Audio BT20A MAX Amplificatore di Potenza Stereo Bluetooth

Tipo
Amplificatore 2.0 canali
Potenza massima in uscita
2x 300W@4Ω
Input
RCA1/RCA2/Bluetooth
Output
Uscita altoparlante, Uscita pre-out
Controllo Acuti e Bassi
SBC/AAC/aptX/aptX HD/aptX Adaptive/aptX Lossless/LDAC
Treble & Bass Control
<0,003%
Rapporto segnale/rumore
≤0.003%
Impedenza di terminazione
≥112dB
Terminating Impedance
2-8Ω
Chip Amplificatore
TPA3255/Qualcomm QCC3095
Alimentazione
48V/5A,48V/10A

As Seen On

“This is what happens when a company is laser focused on customer needs and excellence in engineering.”

"If you want a small, simple, affordable integrated amp with lots of power, the Fosi Audio BT20A Pro is your best choice."

“Are they the last word in anything? Of course not. But where value for money is concerned – and that is made up of a combination of performance, specification, build quality, pride of ownership, user interface (such as it is where a product like the V3 monoblock is concerned) – the company seems to hit the nail on the head.”

“Team Fosi does clear, controlled, clean-as-a-whistle ‘hi-fi’ like a dream”

"Long story short, the Fosi V3 Mono Amp is one of the best power amplifiers I have ever reviewed to this day."

"It may not look like it, but the Fosi Audio BT20A Pro is a powerful amplifier in a small package. It may be barebones, but it sounds bigger than the price tag would have you expecting."

"You don’t need to spend thousands or even hundreds to gain entry into Audiophile Land. Fosi Audio’s DS2 2024 is proof of that!"

"What I have learned for sure, though, is that Fosi Audio goes about things the right way and is far more sincere than it is cynical in its efforts to part you from your hard-earned."

"The affordable Fosi Audio DS1 is our favorite headphone amp/DAC because it has the needed connections and power output to suit most headphones."

  • 5 stars: 239 (83%)
  • 4 stars: 49 (17%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
O
OCTAVIAN DUMITRESCU

The Fosi Audio BT20A Pro with the 2x MUSES02 op-amp upgrade is an outstanding budget audiophile combination that transforms a punchy Class-D amp into a warm, smooth, and highly musical performer.
Here is the quick breakdown:
• The Sound: It significantly reduces digital harshness, offering richer vocals, smoother highs, and a wider soundstage compared to the stock chips.
• The Bass: The low-end becomes more textured and natural, rather than just aggressively punchy.

The Verdict: It makes a budget amplifier sound like a much more expensive, premium analog system, especially when using the RCA input

G
Gavin
Punchy Performance and Serious Engineering in a Compact Footprint

If you appreciate clever engineering and equipment that packs an unexpected punch without taking up half your desk space, the Fosi Audio BT20A Pro is a masterclass in modern budget amplification.
?Right out of the box, the build quality stands out. That sleek, all-metal chassis with the brushed aluminum finish and that signature copper volume knob gives it a sharp, tactile industrial look. It feels solid in the hand, not like cheap plastic toy gear.
?Under the hood, pairing the TPA3255 chip architecture with a robust power supply gives this compact unit an astonishing amount of clean drive. It delivers impressive headroom and crisp channel separation that brings music and movies to life with surprising depth. The inclusion of dedicated, responsive bass and treble tone controls on the front face��complete with a true mechanical midpoint detent��gives you real-time command over your soundstage without needing to mess with software equalizers.
?Whether you're streaming via reliable Bluetooth 5.0 or running a wired line-in from your workspace setup, it operates with minimal noise floor and handles dynamic passages effortlessly.
?Overall, it��s a brilliant piece of audio gear. If you love clean design, smart layout choices, and high performance that doesn't require a massive footprint or budget, the BT20A Pro is an absolute winner.

C
CARLOS FDZ
GRACIAS ESTOY MUY CONTENTO CON MI AMPLIFIVADOR ES

GRACIAS ESTOY MUY CONTENTO CON MI AMPLIFIVADOR ES GENIAL CUMPLE AL 100

G
Gavin
Denon DRA 800H w/ Bose Acoustimass 5 V5 vs BT20A PRO w/ Bose Acoustimass 5 V5

BT20A Pro Performance w
Hi Fosi Audio Team,
Happy to share my experience with the BT20A Pro and how it��s performing in my setup with the Bose Acoustimass 5 Series V system.
1. Why I chose the BT20A Pro for the Bose Acoustimass 5 Series V
Compact Footprint & Direct Drive: The Acoustimass 5 Series V system requires clean, robust current to properly drive the passive bass module and dual-cube satellite arrays. I wanted a dedicated, high-efficiency Class-D mini amp that could deliver serious power without taking up a massive footprint in the room.
TPA3255 Chipset Capabilities: Knowing the BT20A Pro utilizes the Texas Instruments TPA3255 chip with high headroom and ultra-low distortion (0.005% THD), I knew it had the clean output power required to drive the 4�C8 ohm load of the Acoustimass module effortlessly.
2. Why the Denon DRA-800H didn't deliver the expected results
Overly Complex Signal Path: While the Denon DRA-800H is a solid full-sized receiver, its heavy processing, feature-dense AV routing, and softer Class-AB tuning felt overly warm and "polite" driving the Acoustimass system.
Lack of Dynamic Punch: The Bose passive Acoustimass module needs raw, fast transient power to deliver tight, punchy low-end response. The Denon sounded slightly muffled and soft in the mid-bass/lower frequencies, requiring too much volume tweaking and EQ manipulation just to get a lively, balanced soundstage.
3. How the BT20A Pro meets or exceeds my expectations
Immediate Clarity & Attack: The short, direct signal path of the BT20A Pro brought the Acoustimass 5 Series V to life immediately. Transient response is drastically improved��snare hits, basslines, and vocals are crisp, tight, and well-defined without any distortion.
Effortless Headroom: The power delivery from the TPA3255 provides instantaneous current. The system sounds fast, open, and effortless even at higher volumes, with zero thermal issues or background noise.
Simplicity & Tone Control: The dedicated physical bass and treble controls (with center detents) allow for quick, precise tuning without diving into complex digital menus. It delivers pure, uncolored Hi-Fi performance in a solid micro-chassis.
Overall, the BT20A Pro completely outclassed a standard full-size receiver for this specific application, delivering the dynamic attack and punch the Acoustimass system was designed for.
Best regards,
Gavin

A
ALEXANDRU CHISCAN

The BT and DAC are not so great but pairing it with a ZD3 DAC makes a difference.

A
ACA
Great Power Amp

I would give a 5 stars to this amp. I bought the 48v options PSU to move the Kanto YU6 Passive speakers. I love the way the speakers have power and doesn't sound bad or with fatigue. Is a small component with a minimalist style. Some people say is a Scam, I ordered this amp, a phono preamp & a RCA cable without problem. I have other problem with their speakers that I have to pay more money for the shipping, but I talked with Linda of support and they refunded me the money of the speakers. I'm happy with my other products and I would recommend to buy with them.

D
DougB
Fantastic compact amp

The Fosi Ausio BT20A is a great little amp. The only thing little is the physical size. This little amp puts out a lot of clean power. I have the 48V PS to ensure I get the max power and have plenty of headroom for my setup. It��s very easy to use. I mainly use it for Bluetooth streaming from my phone but also have a turntable connected to it. Both inputs work great and sound fantastic. My only gripes are the lack of a trigger so it��s always on and drawing some power, and the inability to turn off Bluetooth completely. For the price though these missing features are not worth overlooking this amp. It runs warm when pushed hard for a long time but not so hot it will burn to the touch. I have yet to hit its thermal cutoff. I was using the amp solo but I recently paired the amp with a WiiM Ultra and together they sound even more amazing.

V
Vasilis S.
Excellent

Does the job good. Drives two bookshelf speakers loudly.

M
Michael Collins
Great Amp for its price point.

I recently installed six Klipsch CDT-5800-CII ceiling speakers and needed an amp to drive them.
I bought the FOSI BT20A PRO. It is configured to drive three speakers in parallel for each channel.
My Wife plays her favorite tunes from her cell phone using Bluetooth. The sound is amazing.
My entire system uses Dual Banana plugs for easy connection. The only negative I can say about this amp is the speaker out is not of the proper spacing to fit the easy connect Dual Banana plug.

N
Nikolai Lyraan
I love the sound

My friend gave me this amplifier recently and it works good with my bookshelf speakers, would recommend

A
Argie Guiling
Superb

Really really good...

A
AlexP
Great purchase, cool and powerfull amp.

I bought Fosi BT20A PRO as a step into small class D amps world (and I wasnt worried about class D vs class AB war over SQ for the reason I used class D amps in car audio like Hertz HDP4 and HDP1 and bennefits of class D are for me more grater then eventual loss in terms of SQ).
I chose it because its an amp and bluetooth reciver (after reading detail review on ASR forum and of course comments ) and it has volume dependant sub or aux out which is important to me because I will connect Polk Audio HTS 10 active sub to it to help little Denon SCM41 bookshelf speakers.For now I am happy because the sound is good, amp is powerfull, bluetooth connection is good and quality is ok, knobs are solid and nice to turn, and after reading that amp becomes warm even when not in use but powerd on I was little affraid of overheating, but when amp arrived I didnt experience such thing, i paired it with 48V 5A Fosi GAN power adapter. Amp doesnt get hot after few hours of listinening over BT on moderate volume and power adapter stays cool. Now next problem for me is to buy solid floorstanders to pair with the Fosi BT20A PRO and use it in the living room, and after that we will see and maybe try V3 monos with ZD3, but first I will enjoy in Fosi BT20A Pro and my little Denon speakers, especialy in combo with POLK HTS10 to help with low frequencies.

D
Dorothea Singer
BT20A with 48V power supply is a very good choice

I��m using the BT 20A Pro for amplification, and the Fosi P4 preamplifier, in my multiroom Wi-Fi Streaming scheme which drive some vintage Paradigm Titans. It is a potent combination, they get an A+ grade!

S
Sal Patel
Sick as amp

Tiny unit but sure plays hard, runs 2 orb audio speakers and a mini 8inch subbie from orb as well and no trouble playing crystal clear, - this review is on the 20A pro but I actually ended up with the 30d Pro as the sub is passive but it is awesome would highly recommend

L
Logan
Fantastic Amp

The BT20A Pro with the 48V power supply drives a pair of 8 Ohm Kenwood LSK-704s with ease. Fills my lab with plenty of clean sound. Will be coming back for more products

D
Daniel Sniper
The little Amplifier with the big sound.

I own this Fosi BT2.0 Pro for over a couple weeks now. It's connected to a pair of 80W/Ch 4 Ohms Bose Speakers. Amazing sound by the Fosi amp can drives the speakers. Very loud and also very clear crisp sound. I can turn the volume all the way to the max without breaking speakers but only beautiful sound with the adjustable treble and base. I like the feature where I can disconnect the bluetooth by pressing and hold the volume control since it is priortised the bluetooth connection. The price is very good for very well made amp. Excellent Tech Support team that answered all my questions and help me within a day or so. It took a long time to arrive when ordering from the Fosi website, perhaps because I was impatient but it was a lot faster when I purchased it from Amazon. Another good thing when ordering from Fosi website that I can ordered it with 48V power supply. It is amazing little amp.

J
Jerry Jaz
Didn’t know it was on until the crystal-clear music started to play.

It’s such a low price and compact build. I must admit I had very low expectations. I hooked it up to my JBL 100s and linked it to my iPhone, and the sound was amazing. I honestly thought it wasn’t working until the music started to play. There was absolutely no background hiss, distortion, or noise of any discernible kind. Color me impressed!

J
Jim
Power and Beauty

I love this amp. Beautiful and sophisticated design and plenty of power to deliver the sound. IMHO the BT20A Pro is the best value in HiFi amplifiers available today. Get you some of this!

L
Luis Caprile
Excellent quality at a very good price

I was looking for an amplifier to install an audio system in my office, and a friend recommended Fosi Audio. I ordered the BT20A PRO 300W x2 TPA3255 2-Channel Bluetooth 5.0 Power Amplifier and was delighted. I was truly surprised by the sound quality and its aesthetic appeal. 100% recommended.

D
Donnie L
BT20A Pro FTW!

Bedroom system with BT20A Pro and KEF Q series speakers. Great setup, streams flawlessly, wonderful sound. My go-to for sleepytime.