Verdict
If you ’re set to turn your desktop into a germ of audio gratification , but are n’t prepared to give up much place or much money to do the task , the Fosi Audio V3 monoblocks could be just the ticket
Pros
Cons
Key Features
Introduction
Fosi Audio ’s commission to turn your background into a haven of audiophile profound caliber as well as a place of business continues unabated .
The troupe ’s late attempt to elevate your workstation is this – or , rather , these : the V3 monoblock Class D power amplifier(s ) . The price is right-hand , the specification is right , the dimensions are correct . Just the sound to go , then …
Design
Compact does n’t really get to cut across it . Each V3 monoblock is an extremely tidy 41 x 107 x 142 mm ( HWD ) and likewise realizable 750 g – so once a stereo pair is stacked one on top of the other , there ’s no danger of their dominate even a smaller desk . The fact that the major power brick each amplifier needs in society to do its matter is well larger than the V3 itself should be neither here nor there , given that they ’re potential to be on the floor and out of the way .
As with every Fosi Audio product I ’ve come across , the V3 monoblock is by rights constructed and like an expert end . The build is made whole of CMC - machine aluminium , which help it see and feel rather more upmarket than the asking price propose , and the aim turns the amplifier into a whole - soundbox heatsink . This arrangement , in alignment with dust filter - covered ventilation circle along each side of the chassis , means the V3 die hard reasonably cool – certainly there ’s no issue with heap them , as heat - soakage is not an consequence .
As is predictable when the strictly defined functionality of the V3 monoblock is taken into history , the dashboard is not overburdened with control . There are two little toggle transposition , both very plus in their legal action – one is for power ( on , off or auto ) and the other is to select between the line - grade stimulus ( RCA or XLR / TRS ) .
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Specification
On the stern of the V3 monoblock you ’ll discover three line - level parallel inputs . There ’s an unbalanced RCA socket and a intercrossed balanced XLR/6.3 mm TRS option – the RCA socket is accompanied by a amplification switch , with 25dB or 31dB setting available . output consist of confident and negative verbalizer line connexion – banana plugs and bare wire connexion are both supported .
Amplification come via the well - regard Texas Instruments TPA3255 Class D chip that I ’ve recently heard power the novel WiiM Amp Pro . It ’s accompany by some equally believable hardware , including Sumida audio inductors , WIMA capacitors and Nichicon filter capacitance . The Texas Instruments NE5532 op - amps can be swapped by the end drug user in favour of alternatives from , say , the like of Burson or Sparkos – which will please inveterate tweakers no oddment , I ’d have think .
A four - level PCB is designed to put up optimal signaling stability and pureness . And in an effort to overcome the usual load - dependency issue inbuilt in Class D amps , Fosi Audio has developed something it ’s shout PFFB ( ‘ post - filter feedback ’ ) – it intends to cut output impedance and output filter impact on frequency reception . In fact , the company is claiming a frequency reaction of 10Hz – 30kHz for the V3 monoblock .
Performance
In spacious term , Fosi Audio has struck quite a skillful balance with the V3 monoblocks . They may not be capable to describe big dynamic variations with all that much conviction , and they could do with a bit more body at the top of the frequency range , but in every other respectfulness they ’re likeable and easy to listen to – as long as they form part of an appropriate and proportionate system , of trend .
A 24 - bit/44.1kHz FLAC file of Aw , Shoot ! by CMAT via TIDAL enjoys nice detail levels at every breaker point , and the midrange resolution is such that some of the details of her proficiency ( as well as the localisation of her regional accent ) are made plain .
There ’s a respectable amount of punch and variation at the bottom of the frequency range , as well as a bonnie amount of extension . Frequency reaction is helpfully even , and with the elision of the treble reproduction ( which is thin and just fractionally hard ) the tonic residue is moderately convincing too .
The soundstage the gain generates is sensibly big and defined effectively – the spread is much more left - to - right than it is top - to - bottom , which grant every element of a recording a bit of ventilation place . Control of low - relative frequency activity is quite accomplished , which intend rhythm are expressed with a average amount of confidence , and the same is on-key of tempo .
The V3 monoblocks ’ overall mental attitude is quite energetic and upfront , and while this suit up - pace cloth rather more readily than it does the down - pace stuff , it means the Fosi Audio is never less than an engaged and piquant listen .
No , the elaboration does n’t really have the lung content to give full expression to the biggest shifts in volume or intensity . No , it ’s not an especially three - dimensional listen – the soundstage is coherently laid out but there ’s not much sensory faculty of a front and back to the presentation . And no , the in high spirits - end response is n’t the most substantial you ever heard . But if you balance these negative against the V3 monoblocks ’ positive degree , they in spades emerge in credit .
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Should you buy it?
You take screen background listening very seriously and have some appropriately talented ( and appropriately compact ) passive talker to drive
You think to partner the Fosi Audio pair with speaker unit with any sort of issues where treble response is have-to doe with
Final Thoughts
I ca n’t lie – I am quite well inclined towards Fosi Audio , even though this is just the second of the troupe ’s Cartesian product I ’ve prove .
Are they the last countersign in anything ? Of course not . But where time value for money is concerned – and that is made up of a compounding of performance , specification , build up calibre , pride of possession , user interface ( such as it is where a Cartesian product like the V3 monoblock is concerned ) – the party seems to hit the nail on the head .
A brace of tiny monoblock amplifiers is a fairly niche ware , it ’s true , but for those masses who may be connive I do n’t have too many qualms in paint a picture an audition is in rescript .
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How we test
I tested a pair of Fosi Audio V3 monoblocks for well over a workweek in my listening way ( positioned on a Blok Stax 2 G equipment wrack ) and on my desk . In the listening room they were connected to a Naim Uniti Star act as a connection streamer and preamp ( with a preamplified Cambridge Audio turntable and a Rega compact disc player as additional sources ) , and power a span of Bowers & Wilkins 705 S3 theme song loudspeaker . Yes , I know this is overkill – and so on my desk they were connect to an Apple MacBook Pro loaded with TIDAL app and Colibri computer software , and they power a brace of Q Acoustics 3010i standmounters . Which is a bit more realistic .
FAQs
Of course – you need one V3 per channel , and each V3 demand a main socket , and then you ’re proficient to go
By attaching the inner heatsink to the physical body , Fosi Audio has turned the intact V3 into one big heatsink . So ‘ affectionate ’ never becomes ‘ hot ’ , even if you stack them
Do you stand for to say you ’re not a devotee of Serious Grey with Orange Accents ? There ’s bad news if you ’re not , because it ’s the only available finishing
Full Specs
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