This is one of, if not THE best full coverage of an Amp I have ever seen. Literally walks you through and at a easy pace too. Well done and good job on the new mono amp too!

Well done, this is an absolute godsend to the community. I am very impressed with this implementation and the supplied measurements thus far. Next up; bigger boxes with reliable built in power supplies?

Finally, it arrives!

Just jumped on kickstarter and in for duals with dual 48v 10A ⚡️ 🔊🔊✅✅

@bstatmeister

Ай бұрын

I did too. I figured why not go overkill? You think 2 10 amps would be beneficial if one were to get 2 ohm speakers?

Excellent ! Awaiting for GaN based monoblocks :-)

@jayem1826

Ай бұрын

I've had 3 mini GaN amps die. I have no faith in that technology any longer

@johnnycashlesscomedy8616

Ай бұрын

Can you tell us which GAN Amps had trouble? I Use ClassDaudio for home theater but are about $700 per monoblock

Bravo, this must be the best promo clip for audio gear I have seen on KZread to date

You can buy a TPA3255 amp module within 20 dollars. The so-called Post-Filter Feedback (PFFB) are just a few capacitors and resistors.

@fosiaudio whom should I contact for reviewing your product for both written and video reviews?

If you are concerned with overheating, you might want to check or use the coolers used for laptops. You can put these amps over the laptop coolers to cool the amps. I bought a used laptop cooler at the thrift store for $5.00. The cooler I bought has two fans which is perfectly pointed to each of the amps on top. Although the amps do not get that hot, I still put them on top of the coolers just in case the amps need some cooling.

I see the Burson V7 in the recommended list. Conveniently, I already have a pair. Since they are pretty tall, will the case close with them installed?

What is this cool light-jumping device in the ending sequence?

Will the amps accommodate spade speaker plugs? Thanks.

Interesting. Which op amp(s) do you advise to add a little warmth/smoothness, improved soundstage, little bit more emphasis on reverb to the sound without losing clarity/fidelity/details?

Thank U for the video. One question : Is it OK to supply power from a single power supplyer?

@fosiaudio

Ай бұрын

Sure, you can choose the option of one psu+one amp.

amazing. now do a multichannel one 😁

In the Opamp Rolling segment, you don't mention the third slot near the input section. Is there no sonic advantage to rolling this third opamp?

kudos for saving the money on the pots - it's a job of the music source (read Walkman, iPhone, Android) , resistance steps volume controller or high-quality digital knobs controlled AVR preamp to adjust the milliWatt input to the V3. I strongly agree with the removal of the 'Potentiometer' for volume control, less parts to be worried about. Only dumb will request this in a 'mono' AMP!

How much does it cost for two of the amplifiers and to 48 volt 10 amp power supplies and when will it be available and where do I buy it ?

do these come only in 230 volts or are they also available also in 110-120 volts

There are 3 Op Amps in a monoblock, why swapping only two of them?

Can you make a matching preamp with 80hz high pass stereo out, and low pass stereo out?

@fosiaudio

Ай бұрын

Yes, we're actually making it. We invite you to join our community to get update about it. facebook.com/groups/fosiaudiocommunity

Low Budget AB amp VS this one?

Are your rated power figures for 1 power supply for 2 V3s? Do you recommend 1 or 2 power supply for a pair of V3s?

@fosiaudio

Ай бұрын

When we connect a 48V/5A psu to a v3 mono, we can get a rated power of 240W into a 4ohms load.

Dang! Love my V3, will have to snag a few of these for my next open baffle speaker rig!!!

@greggb681

Ай бұрын

300 watt amps for an open baffle?? 🤨

@jazzboy

Ай бұрын

@@greggb681 active crossover.

How can a 5.1 setup be achieved with monos ? What device will provide 5 channel preamp signal with DSP for surround setup? Is there a DAC with 5 channel output , eARC input and sub out ? Some help on the matter please 🙏🏻 Also can i use the Wiim Pro Plus with a set of those? Does the Wiim PP have volume control?

@itsratso.

Ай бұрын

the simplest way would be to use an avr that has 5.1 preamp outs.

@joshjames541

Ай бұрын

Schiit Audio Syn is a 5.1 surround DAC for $399, but looks like RCA or optical input only, no HDMI eARC. But as the other commentor said, you could use an AVR that has pre-outs, that just might set you back a bit for one with pre-outs for the 5 primary surround channels

Is it possible/safe to have one sub - but still in stereo - with these monos? If so, what would be the safest way to connect them to a single rel sub? 🙏🏼

@humanbass

Ай бұрын

The vast majority of subs use internal amplifiers.

@DavidYoungSpace

Ай бұрын

You could connect your REL to the V3 Mono's with an RCA splitter cable. But it's probably better to drive your powered sub directly from the preamp.

Discman ❤

price? v3 monoblock

Cool I think these will be good for the community but also just can’t take the plunge I’ll stick to outlaw monoblocks proven and powerful

what is the 8Ohms output?

@junsun95

29 күн бұрын

98W

Should an audio source really be connected directly to a power amplifier?

@azar3006

Ай бұрын

If it has volume control, sure !

@fosiaudio

Ай бұрын

In the video we used a Sony D99 discman as the audio source which has a volume control.😃

@Hirnlego999

Ай бұрын

MUST have volume controller. Start by using the lowest volume before powering on ANY power amps.

I would love a 32 Ohm (mono mode) : 33.5W RMS per channel, 300 Ohm (mono mode) : 6.4W RMS per channel 600 Ohm (mono mode) : 3.5W RMS per channel mono headphone Amplifier stack from fosi for $500 or less for for things like the modhouse tungsten double-sided☺☺☺️

If I already have 2 48v 5 amp Power supplies from the VA3 can I just order the mono blocks alone ?

@bjmarchives

Ай бұрын

Yes

@DavidYoungSpace

Ай бұрын

You can order one unit without power supply on Kickstarter. But all the Two-unit options include power supply - either the 5A or the big 10A.

@robertpannullo5687

Ай бұрын

Thanks for all the replies.. I have 2 VA-3’ s running in mono already so I guess another dumb question … will these amps sound better being that they are specifically designed for mono ?

The problem with these mini components is that they cannot supply floor speakers with sound, only bookshelf speakers.

Why does this need a kickstarter ?

@steven2809

Ай бұрын

Exactly! Waiting until they appear on Amazon......

@fosiaudio

Ай бұрын

The v3 mono is in the mass production stage now. You'll be the first to receive it if you order via kickstarter.

I would have 4 so I could quad amp my speakers.

Won't power 20.7s 😮 Coda Ts v3 800w@4ohm

Waiting for no waiting 😂

The Chinese power amps need to specify RMS power ratings instead of peak power!

@crazyprayingmantis5596

Ай бұрын

Why? They have more than enough power

@junsun95

29 күн бұрын

@@crazyprayingmantis5596 You must be a marketing person or get sponsored from Fosi.

@junsun95

29 күн бұрын

This amp is not using a bulk heatsink for the amplifier chip. You will have the answer if you look at the spec from TI TPA3255.

Thank you for the video. I noticed there are three swappable opamps. What is the function of the third one?

@fosiaudio

Ай бұрын

The one near the RCA input is used to convert RCA signal to balanced signal.

@hafid4319

Ай бұрын

@@fosiaudio thank you

@rccabraljr

Ай бұрын

i have za3 and i think it has 5 op amps. I replaced 2 for the left and right channel. Why do V3 mono has 3? What are the two op amps for as you said the third one is for the conversion of RCA to balanced.

@DavidYoungSpace

Ай бұрын

​@@rccabraljrI wondered about this, too. If these are true mono amps, what is the purpose of the second opamp?

"...optimizes handling???" 🤣🤣🤣 I was going to watch the rest of the "commercial", but the BS meter on my phone just blew up. 😂

These are just gateway drugs before you know it you’ll be buying a 1k price amp and some Lintons 😂

China sound😅

If you are serious enough to use monoblocks are you seriously going to be using these?

@crazyprayingmantis5596

Ай бұрын

Yes, yes you are, unless you want to pay 10x more for the same thing in a fancy case with a fancy name badge on it.

@Bob-hq5lj

Ай бұрын

@@crazyprayingmantis5596 2 Schitt audio Vidars would be more than comparable and cost $1600. So are you saying the Fosi's will retail at $160 for a pair?

@Hirnlego999

Ай бұрын

The loudspeakers (and room, and recording quality) should have a lot more to say about the final sound quality than almost any amplifier. This gives a lot of power for not so much money.

@ricochet243

Ай бұрын

Get with it, Bob, this ain’t 1996 no more

@Bob-hq5lj

Ай бұрын

@@crazyprayingmantis5596 A pair of new Schiit Audio Vidars would cost $1600 are you contending that the cost Fosi pair will be 10 times less?

No balanced information ? That design should be balanced by default . And the RCAs are added for consumer gear and voltage. XLR s are higher , and more robust signal ! By design... the whole home theater thing that was described should have covered this ? I'm not a home theater fan, but running in XLR mode you would run long interconnects and short speakers cables ! That's one of the benefits of balance XLR . Hooking up a portable device is not a demonstration of the so called capabilities of such a unit? The word Audiophile is used many times in this video ,but this is not an audiophile demonstration! Start with your best application then work your way down? Starting with portable devices is not Audiophile?

Missing the point as usual!