Fosi Audio V3 Mono Amplifier Review

[Deleted member 72219]

Is it helpful to use 1 of these amps for the Left and another amp for the Right? Maybe more power?

This is precisely the point of these. One per channel.

-Ed

 

[staticV3]

Is it helpful to use 1 of these amps for the Left and another amp for the Right? Maybe more power?

More power, no crosstalk between Amps, can place the Amps right next to each speaker for minimal speaker wire length.

 

[MCH]

More power, no crosstalk between Amps, can place the Amps right next to each speaker for minimal speaker wire length.

+ Half current per amp = favourable thermals

 

[Cgs0409]

I need opinions for a system upgrade. I’ve been reading and reading and reading. Unfortunately there is no place near me that handles the components I’ve chosen so I’m at the mercy of reviews. So here is my list…
Fosi V3 mono (2)
Schiit Kara preamp
Elac DBR62 speakers

I tried to attach a photo of my setup I have now but the file is too large…rats.
So any thoughts or suggestions would be greatly appreciated. Don’t be shy I can take the heat. Thanks in advance.

 

[antcollinet]

I need opinions for a system upgrade. I’ve been reading and reading and reading. Unfortunately there is no place near me that handles the components I’ve chosen so I’m at the mercy of reviews. So here is my list…
Fosi V3 mono (2)
Schiit Kara preamp
Elac DBR62 speakers

I tried to attach a photo of my setup I have now but the file is too large…rats.
So any thoughts or suggestions would be greatly appreciated. Don’t be shy I can take the heat. Thanks in advance.

Sounds like a really nice little setup.

What is your source?

Speakers don't go super low so you may want to be budgeting/saving for a sub in the future.

 

[Cgs0409]

What is your source?

Several different YouTube videos, reviewers, this site (Amira), and others.

 

[Deleted member 72219]

Sounds like a really nice little setup.

What is your source?

Speakers don't go super low so you may want to be budgeting/saving for a sub in the future.

@Cgs0409 i concur with the above assessment. That’s a pretty solid setup, and a subwoofer would pair extremely well. I personally recommend an SVS subwoofer because the Bluetooth-linked DSP makes setup/tuning an absolute breeze (WAY better than listen, run over, adjust, run back, do it again and again and again, not to mention the awesome integrated 3-band PEQ which makes room integration an absolute breeze). I run one of their SB-3000 subwoofers to bolster the bottom end of my KEF LS50 Meta loudspeakers, and I use a Schiit Freya+ preamp, so my setup is very similar to what you have in mind (have a pair of V3 Monos on order, but am already running a pair of ZA3s as mono blocs in stereo mode with 48V/10A power supplies).

-Ed

 

[Deleted member 72219]

Several different YouTube videos, reviewers, this site (Amira), and others.

I think he’s asking what source as in is it a computer, is it a network streamer, is it something else?

I use a HiBy R6 Pro II DAP fed to a Musician Draco DAC as my source. The R6 Pro II is great because it has a global parametric EQ as well as global plugin for L/R balance, both things critical to me for room correction, and when I commute by train, I can take the whole thing with me for music on the go, and I use the global PEQ to match my IEMs’ frequency response curve to a neutral target. Also, when I’m home, I use the HiBy Cast app on my tablet to remote control the DAP.

-Ed

 

[Cgs0409]

Sounds like a really nice little setup.

What is your source?

Speakers don't go super low so you may want to be budgeting/saving for a sub in the future.

Thank you for your input. My room is 10 x 24…wood walls and ceiling with tile floor. I have Klipsch RP-160M and Klipsch kg4.2 speakers now and their bass is not bad in this environment. I have a sub but it is too boomy so I don’t use it. My power comes from a Sansui 5000A and 2000X receivers both have been completely rebuilt.

 

[Deleted member 72219]

Thank you for your input. My room is 10 x 24…wood walls and ceiling with tile floor. I have Klipsch RP-160M and Klipsch kg4.2 speakers now and their bass is not bad in this environment. I have a sub but it is too boomy so I don’t use it. My power comes from a Sansui 5000A and 2000X receivers both have been completely rebuilt.

The boomy sub is a common issue, and the reason why I recommend a subwoofer with better control for room correction, like an SVS with its full DSP.

An alternative to use the subwoofer you already have would be something like a MiniDSP—this can take the place of the preamp in your suggested setup, but you might need a digital audio output depending on which MiniDSP configuration you get.

-Ed

 

[Cgs0409]

I think he’s asking what source as in is it a computer, is it a network streamer, is it something else?

I use a HiBy R6 Pro II DAP fed to a Musician Draco DAC as my source. The R6 Pro II is great because it has a global parametric EQ as well as global plugin for L/R balance, both things critical to me for room correction, and when I commute by train, I can take the whole thing with me for music on the go, and I use the global PEQ to match my IEMs’ frequency response curve to a neutral target. When I’m home, I use the HiBy Cast app on my tablet to remote control the DAP.

-Ed

Thank you for your input. See my post describing what I have now. I have a XM radio receiver hooked up to my system and a Bluetooth receiver so I can stream from phone. Not the ideal setup but it fits my budget right now.

 

[Negatywny]

Fosi V3 mono (2)
Schiit Kara preamp
Elac DBR62 speakers

Basically it's an end game setup

Personally i'd go for floorstanders, or if you can't, i'd try wharfedale aura 2.

Or alternatively you can save money on schiit kara.
Connect v3 monos by xlr directly to DAC with preamp, and for secondary analogue sources use schiit sys or some vintage preamp (by RCA). You have 500$ for speakers.

 

[HoweSound]

I need opinions for a system upgrade. I’ve been reading and reading and reading. Unfortunately there is no place near me that handles the components I’ve chosen so I’m at the mercy of reviews. So here is my list…
Fosi V3 mono (2)
Schiit Kara preamp
Elac DBR62 speakers

I tried to attach a photo of my setup I have now but the file is too large…rats.
So any thoughts or suggestions would be greatly appreciated. Don’t be shy I can take the heat. Thanks in advance.

I'm going to use these with my Schiit Freya S, so pretty much the same setup. Seems like a natural fit. Just wish the Freya had a trigger output.

 

[musicforcities]

I'm going to use these with my Schiit Freya S, so pretty much the same setup. Seems like a natural fit. Just wish the Freya had a trigger output

I hear you. Preamps without triggers (or power amps) such a pain if one wants to turn amps off when not using them.

My only suggestion is a smart power switch that allows one device to operate as a master, they sense by load the master is on (even from standby) and turn on controlled devices, usually after a second or two delay. I have used a Belkin surge like that for years and it’s been great.

I have also used a power switch with remote turn on…they do exist but one has to be careful about the wattage/amp rating because most are designed for lamps as such.

I suppose you could wire a 12v trigger into your freya…i have done that before with old out of warranty gear. Usually there is enough extra wattage in standby control circuits that one can tap it and add a relay for a trigger out, or just tap the standby power relay itself if it is 12v. If there is not a standby then one has to tap the line voltage and convert it to 12vdc (easier to do in the age of switching power supplies) or if one is lucky.

 

[Cgs0409]

The boomy sub is a common issue, and the reason why I recommend a subwoofer with better control for room correction, like an SVS with its full DSP.

An alternative to use the subwoofer you already have would be something like a MiniDSP—this can take the place of the preamp in your suggested setup, but you might need a digital audio output depending on which MiniDSP configuration you get.

-Ed

Would a DAC like the Schiit Modius work with the system I referenced?

 

[Deleted member 72219]

Would a DAC like the Schiit Modius work with the system I referenced?

Seems fine if you are into Schiit gear. Amir’s own test of this DAC has decent results. It is a straight DAC, so does not do volume control (preamp) and does not have DSP (no room correction).

-Ed

 

[Cgs0409]

Seems fine if you are into Schiit gear. Amir’s own test of this DAC has decent results. It is a straight DAC, so does not do volume control (preamp) and does not have DSP (no room correction).

-Ed

What would you recommend?

 

[Deleted member 72219]

What would you recommend?

Amir got good test results from SMSL’s C200, and SMSL’s DL200 has a huge feature set for the money (although ASR has not yet tested it). So for similar money as the Schiit Modius, you get more functionality. They are both DAC and headphone amplifiers with balanced (TRS) pre outs (you just need TRS-XLR cables), and on top of that the DL200 has a Bluetooth receiver and a remote control, so it will also act as preamp with remote volume control.

CAVEAT: I do not have first-hand experience with either unit. I only have previously owned an SMSL DO100 DAC which sounded fine as a DAC but the integrated volume control was useless in practice due to noise when changing sampling rates. I would hope SMSL has resolved these issues with newer units, but I don’t know this for a fact due to lack of hands-on experience.

-Ed

 

[Kayshot]

Likely a rookie question, but would I be able to use my subwoofer with two of these mono amps given my current gear?

Currently I have a Wiim Pro feeding optical into a Topping DX3 Pro+ DAC, which runs RCA into my Loxjie A40. My sub is fed with the sub-out RCA on the Loxjie.

By the time my two Fosi monos arrive, I'll have a Speedwoofer 10S MKII. The answer here is probably simple, but I can't figure out how to keep the sub in the picture unless I keep the Loxjie in the mix. Also important that I be able to keep the volume the same between the speakers and sub without having to match different volume controls for my bookshelves and sub.

 

[Cgs0409]

Amir got good test results from SMSL’s C200, and SMSL’s DL200 has a huge feature set for the money (although ASR has not yet tested it). So for similar money as the Schiit Modius, you get more functionality. They are both DAC and headphone amplifiers with balanced (TRS) pre outs (you just need TRS-XLR cables), and on top of that the DL200 has a Bluetooth receiver and a remote control, so it will also act as preamp with remote volume control.

CAVEAT: I do not have first-hand experience with either unit. I only have previously owned an SMSL DO100 DAC which sounded fine as a DAC but the integrated volume control was useless in practice due to noise when changing sampling rates. I would hope SMSL has resolved these issues with newer units, but I don’t know this for a fact due to lack of hands-on experience.

-Ex

My CD player…Yamaha CD-S303 has a built in DAC and turntable…Miracord 770H doesn’t need one…so would I even need one. I’m an old vintage guy and still wrapping my head around all this new black magic…lol.