Price: ₹11,999.00
(as of May 09, 2025 23:42:56 UTC – Details)
Product Description
Designed with Audiophiles in Mind Fosi Audio V3 Mini Stereo Power Amplifier
Integrated quality components and groundbreaking heat dissipation design enable high and stable performance catering to audiophiles’ demand.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Born for HiFi Enthusiasts
Using a minimalist design language, focusing more on enhancing the sound quality and performance of the product, making it the best-sounding power amplifier of Fosi Audio to date.
Max Power Output: 300Wx2@4ΩSINAD: 88dB | SNR: ≥110dBTHD: ≤0.003% | Noise Floor: 140uFFrequency Response: 20Hz-20kHz
TI TPA3255 Integrated
Enabling superior audio quality & ultra-low distortion across the audio band with Class-D efficiency
Swappable Op-Amps
Compatible with 8-pin dual op-amps. Roll them to get your preferred sound signature
Audiophile-Grade Capacitors
Built-in quality Japanese NCC, ELNA, and German WIMA capacitors for outstanding performance
Japanese SUMIDA Inductors
Professional audio inductors which have lower impedance and enable support for larger currents
Logarithmic Potentiometer
Manage the volume of sound in a much finer way suitable for the human ear
1 Amp Chip
2 Op-Amps
3 Capacitors
4 Inductors
5 Taper A Pot
Groundbreaking Heat Dissipation
Vents on the top and bottom, and whole-body heatsink design enhance air circulation and cooling
1 Heat Dissipation
2 Vents on Top
3 Vents on Bottom
4 Nano-Coated Heatsink
About the “Pre-out”
The “Pre-out” level is NOT controlled by the volume control.
1 Front Panel
2 Rear Panel
3 Power Rating
1 Bookshelf Scene
2 Home Theater
3 Desktop Scene
V3
Comparison Chart
2.0 CH Amp
Type
2.0 CH Amp
300W x 2
MAX Power Output
300W x 2
RCA
Input
RCA
Passive SPK +Pre-out
Output
Passive Speakers
Treble&Bass Control
<0.003%
THD
≤ 0.3%
≥110dB
SNR
≥ 90dB
2.0 CH Amp
Type
2.0 CH Amp
300W x 2
MAX Power Output
160W x 2
RCA
Input
RCA
Passive SPK +Pre-out
Output
Passive Speakers
Treble&Bass Control
<0.003%
THD
≤ 0.04%
≥110dB
SNR
≥ 98dB
2.0 CH Amp
Type
2.0 CH Amp
300W x 2
MAX Power Output
100W x 2
RCA
Input
RCA
Passive SPK +Pre-out
Output
Passive Speakers
Treble&Bass Control
<0.003%
THD
≤ 0.04%
≥110dB
SNR
≥ 98dB
2.0 CH Amp
Type
48V Power Supply
300W x 2
MAX Power Output
240W
RCA
Input
–
Passive SPK +Pre-out
Output
–
Treble&Bass Control
<0.003%
THD
–
≥110dB
SNR
–
TB10D 
TDA7498E 
TB10A 
48V 
Compact Yet Powerful: The V3 mini power amplifier combines a minimalist design with exceptional performance. With a power output of up to 600W, it can effortlessly drive 2-8Ω speakers, delivering impressive sound quality. Its compact size makes it suitable for various applications, from bookshelves and desktop setups to home theaters.
Audiophile-Grade Components: It features the TPA3255 high-end digital class D amp chip and utilizes premium Japanese NCC, ELNA, and German WIMA capacitors, and Japanese Sumida inductors for exceptional audio quality. With a SINAD rating of up to 88dB, an SNR of up to 110dB, and a low noise floor of only 140uF, it delivers exceptional clarity and low distortion.
Innovative Cooling: The V3 stands out with its groundbreaking heat dissipation design. Equipped with vents on the casing’s top and bottom, and a whole-body heatsink design, it efficiently dissipates heat, preventing damage to components and ensuring optimal performance.
Scalable and Fun: Tailor your sound experience by swapping the stock NE5532 op-amps. V3 is compatible with a variety of 8-pin dual op-amps like Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4559, LM4562, LME49720HA, etc.
Worry-Free: Enjoy peace of mind with the V3 stereo amplifier. It comes with a 24-month warranty, ensuring reliable performance and customer satisfaction. Note: The “Pre-out” level is NOT controlled by the volume control as the V3 is not an integrated amplifier, so the sound is NOT adjustable when you are connected to the “Pre-out”.
Friendly customer service: support@fosiaudio.com.
Customers say
Customers find the amplifier well-built and powerful, with one mentioning it works superbly with the Fosi audio P3 tube pre amp. The sound quality and value for money receive mixed feedback – while some say the sound is very good, others find it not great, and while some consider it worth the price, others say it feels expensive.
AI-generated from the text of customer reviews
Prabhat Rizal –
This is essential if you want to increase power or connect additional speakers.
This amplifier is a must-have if you’re connecting multiple speakers, as I have, or simply setting up a stereo system. Iâve been using it as a power amplifier for my Atmos speakers in my dedicated home theater. My AVR has pre-outs, so I connected the Fossi amp to the AVR and then to the speakers. Itâs doing an excellent job. Iâve been using it for over 7 or 8 months, and I haven’t experienced any issues. As a driver for Atmos speakers, it easily handles both heavy bass and high frequencies. I have not tested it for stereo listening. Overall, it is great value for the money.
Sanath Kumar –
Most useful with P3 preamp
Works superbly with Fosi audio P3 tube pre amp. I wanted to reuse Sony hi-fi systems speakers and it serves the purpose. Now audiio output and quality is better than original Sony system
reghu –
NOT AUDIOPHILE, BUT GOOD VALUE
Well built.I bought it as a second amp for a new setup . Can deliver adequate power to my ELAC 50 W speakers without any issues. Lacks warmth or fullness. If you are used to hearing on good quality amps, you will certainly feel the difference. But for the price it packs enough punch for a basic setup. No noises.
Placeholder –
Fosi V3 power amp Superb alternative to conventional AB amplifier
This is fosi V3 plain stereo power amp.I didn’t go for other BT model from Fosi, because I got blueme HD as a BT receiver..I m a musician and also sound recordist, always given preference to analog audio equipment including Vinyl and Magnetic tapes, until recently shifted apple music..I owned Rotel, Yamaha, Denon,Pioneer almost since 40 years with speaker choices to Jbl, Bose,KEF (VINTAGE), Elac ect….I don’t know how will I react to fosi a Chinese company with Japan, Japan, Japan and German Components inside..I tried only this Power amplifier..At 32v DC I don’t know if it can deliver truly 100 w pc RMS…I DON’T CARE…This is most beautiful sounding amp I HV ever thought for its price to satisfaction ratio..Trust me and go for it keeping your mind and eyes closed..No second thought…Thanks Fosi…Keep it..Today Nov. 2 2024I recently added Fosi Preamp P3 (as P2 not available)This has made it even better sounding system with KEF Cresta 1Paisa Vasool!!!Sunil
Vasanth Kumar –
Good Amplifier, value for money.
Fantastic small amplifier, Value for money. It requires turning the volume button to high to get reasonable sound, but it is not an issue. I am using it for amplifying the back surround speakers in Dolby Atmos system pairing this with large 9.2 amplifier. Worth the price. I would recommend it.
Sivakumar Periasamy –
Nice and clean stereo amplifier
Bought this amp a week before. Buildwise it’s solid and soundwise Very neutral Amplifier. I’m using it with Aiyima DAC A2 and surprised how good the songs are played. One thing I noticed is we need to keep the amp volume knob almost to the end of dial to get the good volume.Noticed today that BT20A Pro version released with additional features. Cost wise both are same and I think BT20A Pro is VFM amplifier among the two.
SP –
Sound quality
Very balanced sound without preamp , very crisp and clean sound
cranky –
Nice sound, but betrays its Chinese origins
The Blue light is eye-piercingly bright. The kind that burns your retina.The space between the output connectors is laughably small, as are the connectors themselves.The RCA sockets are out of spec – all plugs are an extremely tight fit.There is no pre out in spite of the label. It’s basically connected to the RCA sockets.There is some residual voltage on the ungrounded power supply if you use a mains tester on it, but it is below 15VAC and this is not a concern.Other than these niggles, it’s sort of usable. I would have preferred a little more thought being put into the feature set, but I guess there’s a limit to the thoroughness of the design .The sound is very good. I would rate it as a good Class D implementation, very rare in and of itself. For casual video use it is adequate, for stereo music it does the job with some lack of refinement. I connect this to a pair of Usher S-520 and it’s fed from a few different sources, the best being a Benchmark DAC-2. I’m using a 48V Meanwell 200W power supply, opting to not limit the amp with the included brick. The Meanwell also has extremely low measured noise and it’s grounded, so that’s a bonus.For comparison, I was using the Aiyima A08 Pro in this setup (and earlier the A07) and while that had more gain (along with a bunch of other less useful bling), this is definitely a better sounding amplifier. At the ~8k price point, it is worth spending money on. The ZA3 offers very little meaningful uplift and the step down to the Aiyima A07 is not worth the savings (if there are any).
REFRANK –
Ho acquistato il Fosi Audio V3 con molta curiosità dopo aver provato diversi amplificatori di classe D (tra cui Aijima) sono rimasto colpito sin dal dal primo ascolto. Sono un appassionato hifi da circa 35 anni, utilizzo anche amplificatori Mc Hintosh, ma ero davvero curioso di provare un oggetto così piccolo ed economico un grado di mettere in discussione le convinzioni dell’audiofilo più conservatore. Stiamo parlando infatti di un amplificatore senza fronzoli e colorazioni, con la sola manopola del volume, ma che assolve egregiamente al suo compito: SUONARE BENE! Naturalmente il tutto va inserito in un contesto adeguato che ritengo sia essere un ambiente di piccole o medie dimensioni oppure, come nel mio caso, un sistema audio da PC con monitor. Ho realizzato un impianto con il DAC Topping E50, Fosi Audio V3 e le ottime Cabasse Surf (piccole ma testarde con un efficenza di 85 Db su 8 Ohm) devo dire che sono più chesoddisfatto del risultato ottenuto, testato con diversi generi musicali il suono risulta abbastanza lineare ma non privo di dettagli e dinamica; bassi rotondi e mai invadenti, alti molto dettagliati e puliti, le voci che spiccano per naturalezza. Insomma un piccolo gioiello che sicuramente vale molto più di quello che costa e che ti lascerà a bocca aperta !Riguardo la potenza dichiarata di 300 W per canale va considerata con un alimentatore da 48V 10A per un impedenza di 4 Ohm, nella maggior parte dei casi invece, ovvero con l’alimentatore di serie da 32V 5A, tiriamo fuori una potenza di circa 50-65 W rms per canale su 8 Ohm, una potenza di tutto rispetto soprattutto perchè priva di distorsioni al massimo volume. La manopola del volume ha un controllo di tipo logaritmico, per cui bisogna girare parecchio prima di avere un buon volume di ascolto ma non abbiate paura di farlo; il grosso della potenza è nascosto nella parte finale.Sulla componentistica interna vi rimando ad altre recensioni più dettagliate, ma sicuramente l’ottimo TPA3255 (già presente su Aijima A07 e Fosi Audio BT20A) assieme ai celeberrimi Op amp NE5532 costituiscono ormai un abbinamento collaudato, ma il Fosi Audio V3 si differenza dai suoi rivali per l’utilizzo di una componentistica interna di alta qualità , in particolare condensatori ed induttori Giapponesi e Tedeschi.(potete trovare ulteriori dettagli sul sito ufficiale) e vi assicuro che la differenza con gli altri amplificatori si sente, e si sente davvero bene:)Degno di nota anche l’originale sistema di dissipazione del calore posto al di sotto del chip e collegato a tutto lo chassis; un sistema davvero molto efficiente che difficilmente manderà l’amplificatore in protezione.Molto interessante inoltre la possibilità di sostituire gli Op amp con un altro modello, sul sito Fosi Audio potete trovare alcuni consigli tra cui gli Sparkos SS3602, MUSES02, OPA2604AP, OPA2134PA ecc… (la lista è davvero lunga) facilmente sostituibili perchè gli NE5532 sono montati ad incastro su un adattatore DIP8. Personalmente, preso dall’entusiasmo del nuovo prodotto, sto testando il Fosi AUdio V3 con i nuovi Op amp ORACLE II-02, il risultato è davvero entusiasmante, ne scaturisce un suono non migliore di quello prodotto dagli NE5532, ma sicuramente diverso, più caldo, molto più simile agli amplificatori tradizionali o, se preferite, ad un valvolare. Insomma il Fosi Audio V3 rappresenta davvero un grande balzo in avanti per l’azienza sperando che continui su questa strada; un prodotto chenon ha paragoni nella sua fascia di prezzo e che per come suona vale almeno 5 volte di più.STRACONSIGLIATO !!!
MARTIN JEAN-MARIE –
super
iboarmutlu –
Ãrün harika,ancak aras kargo çınarcık Åubesi ürünü 5 gün Åubede bekletti. Ãrünü iÅleme bile almadılar.Bursa Åubesinden çıkıŠyaptı çınarcık Åübesi iÅlem yapma zahmetine bile girmiyor.Ãrün teslimat Åubesinde ama nerde olduÄu belli deÄil.ürünü 5 gün sonra telefonla teyid edip ürünü kendim almak zorunda kaldım 60km yol yaptım.
Jon96789 –
Don’t believe the 300 watt claims of the manufacturer. (I don’t know why they just don’t rate the amp with RMS real world specs). Still the Fosi Audio V3 is an excellent amplifier when paired with the optional 48V power supply, although it increases the cost. With the supplied stock power supply, the amp can deliver about 30 watts of real power and with the 48V power supply it can deliver about 80 watts of unadulterated bliss. The sound is clean with absolutely no hiss. You can tailor the sound by easily replacing the socketed OpAmps inside the amp, just make sure you insert them with the proper polarity. OpAmps can range from several to over a hundred dollars for a set. Better OpAMps can give you better depth and a wider sound stage as well as a mellower sound.Remember this is a no frills amplifier with only pair of inputs, it is basically a volume knob and nothing else. But this is perfect when used as a desktop amplifier to drive a pair of desktop speakers. In this mode of operation, you do not need the optional power supply since most desktop speakers are quite efficient and do not need much power.The 48V provides a more heft to the sound with the added power. It can easily deliver enough power to drive most speakers. With either power supply, the amp seems capable of driving even 4-ohm loads without distortion which most modern amps fail to do.Some Pros:* Cheap but great value* Compact size* Very efficient* Swappable OpAmps* High quality components: Elna capacitors, WIMA Output capacitors, Sumida inductors and NCC CapacitorsSome cons:* Fosi used to supply the amp with the copper volume knob as well as the black one but it is now an added option.* The amp goes to sleep rather quickly after the input signal is cut. It takes about six seconds for it to come alive when signal is restored.* There is only one pair of RCA inputs* No Bluetooth capability* No subwoofer output
Arno –
I tried the ZA3 first. But I was quite disappointed. It lacked detail, control, dynamics and the bass was a bit boomy. I almost send the V3 back without even trying. I’m happy I took the effort to hook them up, because wow! Big difference in my opinion. So much more control, calmness and detail. More composed. I’ve played them with Dali Spektor 2’s and Mission LX-2’s. The Spektors match better with their more clear and less warm nature. Very good match.I’ve also tried the Aiyima A70, Topping PA5 II, Fosi V3 mono. I like the Fosi Mono the most. It has more control and space vs these Stereo V3, but I liked these better than the other ones. The mono’s also come with auto triggers. So I you have the budget and space (the mono has big power supplies with them), the mono’s are a step up. But at this price this amp is just excellent!I also compared them to an Audiolab 6000A and even though the Audiolab has more finesse, especially in the lows, I really liked the somewhat more punchy character of these Fosi’s with a really pleasant intimate treble the Audiolab’s lack a bit. They offer a great sense of space and black background. And waaaaay smaller and cheaper. Sure, the Audiolab comes with more options, but If you don’t need those …. I think It’s a hard bargain to justify the Audiolab, which is a very acclaimed A/B integrated amplifier at 5x the price.Some negatives too though. No 12V trigger. No auto-on/off. It’s always on, unless you manually turn It off by rotating the knob all the way back. It consumes 3W continuously. It’s not that bad, but still, for me a big reason to go for a different amp. I always forget to turn It off.