Fosi Audio-MC351
Introduction
• Finaly I received my new HIFI Stereo amplifier FOSI MC351.
It´s a 2.1 chanell integrated amplifier with a built-in DAC.
The aluminium box of realy small dimensions, with VU meter in bright orange, blue light on mode selection, Input mode selection button and two black knobs for trebbles, and basses and main swich on/of/volume knob in metal orange colour. So „do not you like it?“. I do like it.
Can you see that small little brother of FOSI group? Phono preamp Phonobox X2 with 3,5mm input on front panel. I changed the tubes to SIEMENS 5654W/EF95/6AK5 - www.langrex.co.uk uk Thanks to James Rhodes.
Features and Specifications, all you can find on web site www.fosiaudio.com , all those chip specifications, insides built quality and many other you can easy find on social media as FOSI GLOBAL COMUNITY https://www.facebook.com/groups/fosiaudiocommunity/?ref=share
https://www.instagram.com/fosiaudioglobal?igsh=NnplMWNobzBoemQ5
So I am not audiophile and in field of the electronics know just a few technical terms. I can say and describe my feelings. On the other hand I am music lover and also I am amateur musician playing on drums, so I mostly focuse on the low bass , exact midlles and clear trebbles which I do need to hear in music. I am fasinated of the real sound so If I do have a chance to listen vinyl in quality of real space , makes me happy.
So as most of us , I am daily listen the music depedns on the situation.
In the work I am using my inear Samsung Buds II by AKG, which are fair enough for me even I do play on drums. In my home office I do listen the music from netebook by the 3,5 mm jack using the old LTC stereo amp and my HECO surrond speakers with the active HECO sub. Fair enough.
And finaly my loving livingroom audio setup which I will compare in my todays test rewiev for FOSI MC351:
3-way speakers: Dynavoice DF-5
AMP: Natural sound YAMAHA RX-V450
Turntable: REGA Plannar P3
Phono Preamp: FOSI PHONO MM PREAMP PHONOBOX X2
Google TV : TLC 65C645
So as you can see the setup, and the place, I am mostly listening the music through the TV using built in SPOTIFY app and it is possible to use mobil or notebook for application control.
So the connection of the MC351 is realy easy. For TV I used the opticla directly from TV to amp and the RCA from preamp to MC351.
So in my standar setup with Yamaha , I am realy happy and stisfied with the sound and I am using for the output direct stereo so it means natural sound.
The Yamaha amp I am conetcted biwiring, because the speaker are. But sure the amp is not biampling but I do use the sockets A + B so the trebbles in A and the bass in B and I am realy satisfied in that price level of those components. Cables I am using sonner cable.
For FOSI MC351 I had to use the 2,5 mm copper cable to connetc to speakers , and found out the terminals of the MC351 are quite small but finaly I conected. Sure I had to contect the terminals of speakers with gold plated plates.
So I was in my expectations realy positive orientated. And , I found the sound of the FOSI Is quite different.
So at first I put both trebble and bass knobs in middle so zero ponit, to be objective to my direct stereo nartural sound of Yamaha.
Than I played the TV news, to compare the voice as first:
- I found less bass and a bit softer at all , but clear
Than I played the movie from the TV station , where can I found my setup with Yamaha realy specific and deep.
- I found the sound a bit more middle tones , less dynamic but still deep and specific.
Than I used the Netflix, which is in movies full of the effects in scenes and some of the deep low effets are realy as in cinema feeling.
- I found the sound a bit warmer, not so strong effects but steel deep enough and also dynamic was a bit less than in Yamaha setup.
Also I connected my Samsung Galaxy A52s 5G to BT of MC351 and play the Spotify.
- I found the sound was smaller in the space, not enough of bass and trebbles, too middles. On the other side it is enough for common listen as backround music during work etc.
My last connection and most important was turntable conected trhough RCA from FOSI phono box X2.I choosed wide variety of the music styles, some of them on photo.
It is important to say, that I left the MC351 for about 4 days swtched ON and during day was the all the time under some music ot TV, just during the night was without signal , but switched on , so would say in „ burning mode“.
After all those different music styles and the different qualities of vinyl, even classic from 1972 by SUPRAPHON, ap to ADELE 30 new release.
I was trying to find identical sound as my setup with the Yamaha. Sure, it is not possible.
Generaly I found the sound in middle „zero point“ of trebbles and bass , as pretty middle range orientated, too clear and with smaller space sound.
UNTILL I changed my position of the listening. So my listening position is triangle.
With the Yamaha setup it is working perfectly, with the MC351 I found that the ideal listnening position is behind the point so aprox one meter further, it was quite strange for me, but finaly after all tryings , I put all trebbles and basses in zero ponit and found the music accureate.
It tooks to me 2 – 3 days to get used to it.
Yes sound is softer a bit less dynamic and less basses, but still very good and may be a bit clearer.
What to say in final evaluation.
As a common user in field of the HiFi products for common users, MC531 by FOSI AUDIO makes me happy, and satisfied.
As the music lover , specialy vinyl listener I can imagin the pair of V3 mono´s.