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Price: £129.99
(as of Nov 04, 2025 09:54:36 UTC – Details)
Fosi Audio V3 Amplifier
Boost Your Sound Experience
The Fosi Audio V3 300W Class D Stereo Power Amplifier is designed to elevate your home audio experience, offering crystal-clear sound and robust performance. With its advanced heat dissipation system and high-quality components, this amplifier is perfect for music enthusiasts and professionals alike.
Features & Specifications
- Max Power Output: 300Wx2@4Ω
- SINAD: 88dB | SNR: ≥110dB
- THD: ≤0.003% | Noise Floor: 140uV
- Frequency Response: 20Hz-20kHz
- TI TPA3255 Integrated for superior audio quality
- Swappable Op-Amps for customizable sound
- Audiophile-Grade Capacitors for outstanding performance
- Japanese SUMIDA Inductors for professional audio quality
- Logarithmic Potentiometer for precise volume control
- Groundbreaking Heat Dissipation system for stable operation
Pros and Cons
Pros:
- High-quality sound with detailed dynamics
- Customizable op-amp design for personalization
- Advanced heat dissipation for stable performance
- Compact and modern design
- Versatile for various settings
Cons:
- Does not support bridge mode
- Limited to 2.0 CH Amp configuration
Review
The Fosi Audio V3 amplifier delivers exceptional sound quality, making it perfect for home theaters, bookshelf speakers, and music enthusiasts. Its customizable op-amp design allows users to personalize their sound experience. The advanced heat dissipation system ensures stable operation, even during extended use. The amplifier’s compact design and modern look make it a great addition to any room. While it may not support bridge mode, its 2.0 CH Amp configuration is suitable for most home audio setups.
Who Should Buy This?
The Fosi Audio V3 amplifier is ideal for:
- Music enthusiasts looking for high-quality sound
- Home theater owners seeking to enhance their audio experience
- Professionals requiring reliable and customizable audio equipment
- Anyone looking for a compact and modern amplifier design
Final Verdict
The Fosi Audio V3 300W Class D Stereo Power Amplifier is a top-notch choice for anyone seeking exceptional sound quality and customizable audio performance. With its advanced features, compact design, and affordable price, it’s an excellent value for money. Check out the Fosi Audio V3 on Amazon today and elevate your home audio experience!
C.G. Gardiner –
Excellent Amplifer! Very musical results far beyond its price
An amazing amplifier given its size and price point.Properly set up, run in for 24 hours and with a decent Hi-Res Audio signal input, decent cables and suitable speakers and it makes music.The sound is very clean and detailed with no harshness or sibilance. The flat signal response reveals a lot of detail in the music. Not weighted to either end of the frequency range. Very dynamic, good fast attack on solo piano – always a difficult one to project realistically. Not a sound that is aggressive or wearing to listen to.Choosing matching components to provide a balanced system is important, so give it an MP3 input signal you get what you get – medium results, not Hi-Fi.As always one is listening to the system, not individual components. System matching very much matters to the tonal colour especially with cables and speakers. Certainly changing the speakers to +£1000 Spendor, Monitor Audio, Mission etc would unbalance the system and reveal some short-comings – but that would be to use this amplifier far outside its scope of system.One comment I see on several other reviews is the volume control level position … In my opinion, this knob should be pulled off and set to the 6 o’clock position with the amplifier off (a bit like some older Naim units). Them when the unit is turned on, the volume control rate and progression are correct, in comparison with most expectations with minimum volume around 7 and 10 – 11 being a fair listening level.The 48v PSU now supplied with the unit is capable of providing the dynamic transient peaks without strain, providing adequate reserves and control to avoid ‘smearing’ of fast pieces and allow quiet passages to feel realistically contrasted with a wide dynamic range.The simplicity of single input and dispensing with tone controls means fewer sound compromises, and gives a superb perfomance far above the expected quality at this price. Enabling you to stop spending more cash on Hi-Fi and spend more on the music itself.Very enjoyable music-making and Very Recommended!
Edward Holmes –
A great little, powerful, Hi-Fi quality amp, that really packs a punch!
I bought this class-D amplifier, mainly as a backup for my 340W per channel power amp. Needless to say, conventional amplifiers of this type are very heavy and designed for rack mounting, whereas this little Fosi Audio amp, fits in the palm of your hand, and is as light as a feather, by comparison.It came with a 5A, 48V, power supply, however, if you want to get the full output (300W into 4 ohms), then you should consider purchasing the amplifier and a 10A, 48V power supply separately.But donât worry, even with the 5A power supply, it still chucks out around 200W, with a good frequency response and some gut-thumping bass. And, as you probably know, sound is logarithmic⦠i.e. for a noticeable increase in volume you need to double the output, so this is still a good deal, and the quality of sound is pretty darn good.This is a very portable, no-frills power amp, that you can either use in conjunction with a mixer, as a PA, or simply connect it to your phone or laptop and enjoy the music! ð Highly recommended.
Raymond Reeves –
Amazing sound but lacks an important feature
I can’t compare this amp with any other products in the same class D amp category, there might be a better performing amp for this price. I first tried it with my big Tannoy Cheviots but this was obviously asking too much for the little V3 to bare. However when I hooked it up to my Tannoy Revoutions, the full potential was immediate. As a nearfield amp, it works perfectly well. The makers have not correctly labeled the pre-out socket. This is in fact, a fixed line level out. This is only useful for connecting to a recording device or maybe to another amp that has its own volume control. So if you want to use this unit to power a subwoofer, you will always be adjusting the volumes to match each other. Just as a stand alone amp, paired with the right speakers I doubt if anything beats the price
Amazon Customer –
Small but mighty D-class amplifier
Well built. High quality components. Easily drives a pair of 8 Ohm tower speakers to loud levels without perceptible distortion. Volume control is tapered (logarithmic), not linear, so if you want to crank up the sound you should not be afraid to turn it up close to maximum. That is how it is designed (to give you most precise control over the lower to mid range volumes) but needs getting used to. Overall this is the best value amplifier I have ever bought. If you need more inputs/outputs, a remote control and tone controls, this is not for you but if you simply want to amplify a single signal source, with high fidelity and no appreciable distortion, to listen with passive speakers then this is the one to buy!
Tim Millar –
Remarkable little amp
Bought this for my study, with a 32V power supply, to drive a couple of small, 6 Ohm, Quad desktop speakers. The foot print is perfect for a desktop (it has replaced a full size integrated amp and leaves me a lot more space). Seems very well put together, suitably weighty, nice heavy case. I like the logarithmic volume pot, it works very well in this application, although I see that some other people don’t. The power LED is bright enough to see, but not distracting. I find it is very nice to listen to, good detail, pleasantly lively. I’m quite fussy about audio gear and wasn’t sure whether I’d like this, but I am impressed. Sound quality is remarkable, given the small size and the very reasonable price. I might even treat myself to an orange volume knob for it.
Jam Fish –
Great amp
I neeeded an amp to use for extra speaker sin my system and laso one for dual transducers for bass rumbles. I got 2 Fosi ampsfor each task. Botht he amps have worked well adn are really affordable. The power rating needs a bit of reseach though but I didn’t have to be too critcal for the aplications I was using.The sound clarity on the amps are pretty reasonable and give good sound reproduction.I did find that I need to source the larger power packs though to get the most out of these amps adn so eoither buy witht 48 volt pack or factor as a likely extra dependant on your needs.
nodyah –
Great Amp
Very pleased with this amp. Sounds really nice, well made, small. Does exactly what I want with no unnecessary extras
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
Ãtimo ð –
Barato e eficaz muito bom
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.
Jun3rd –
I’m a music lover and this makes one of my favorite music devices. Delivers the best sound quality for me. Recommended.