Ads skipped

LOW Cost HIGH PERFORMANCE Amplifiers? Fosi V3 Mono

19K views · Dec 17, 2025 · Entertainment

Comments · 146

  • @PursuitPerfectSystem · 9 months ago · pinned

    Thanks for watching the video, I realised I probably should have explained what a monoblock amplifier is for new people.  Its just an amplifier for one channel hence the reason you need two of them one for each speaker 😎

    8

  • @maxrider2887 · 9 months ago

    It replaced my 33kg power amp its a real gem when you use it in Xlr input

    5

  • @AndysRecRoom · 9 months ago

    Nice vid. One recommendation would be to try the V3 monos with Sparkos op amps and individual power supplies. My fully active rig kicks like an ornery mule.

    5

  • @matthewhoult1350 · 9 months ago

    Great video Terry I run these with 2 x 48 volt power suppies to keep them true mono so you are providing the maximum current delivery for each amplifier and no cross talk between a single power supply much better. Also I use BFA (British Federation of Audio) speaker connectors not spades or bananas as the BFA connectors provide the best connection between amplifier and speaker 🙂

    8

  • @ericlo6370 · 9 months ago

    These amps can run out of steam and also not preferring larger rooms where in HK, we usually don&apos;t have large rooms so most music lovers will not reach the threshhold sound level. So I think these amps&apos; limitation is to find the sweet spot and stay there, unlike more expensive amps that sounds phenominal from low to high volume levels, a trade off but if tuned carefully, can be rewarding.<br><br>I had borrowed a pair of these V3 for trial sharing single PS but it &nbsp;does not ring a bell to me and I switched back to my old Aiyima stereo amp and it sounds more engaging and musical. Later I also find out that using the conventional heavier PS &nbsp;brick is much preferred over the lighter GaN brick. So it&apos;s a trial and error and I always think these affordable tiny Class D amps do sound different from model to model. &nbsp;<br><br>cheers and Merry Christmas!

    4

  • @KajottR · 9 months ago

    I love my V3 Monos 😍

    16

  • @jakal1591 · 9 months ago (edited)

    You can buy seperate power supplies, it&apos;s basically a mix and match option to suit your wallet.The led sometimes won&apos;t be seated correctly in the groove for it especially if you&apos;ve opened them once. This gives an impression of brightness imbalance

    2

  • @IceMuppet · 9 months ago

    Great review, having used a pair of ZA3s for the last year which are newer units of similar design and costs to the ones here, I would agree with your experience, the use of two feeds from one PSU is probably the biggest handicap, it kind of negates the monobloc concept when the channels can cross modulate each other not unlike a stereo amplifier with a common power supply. However, one can easily buy another PSU making them into a true monobloc setup for a little extra money and when I did this with the ZA3s, with dual 48V 10A PSUs, it transformed the sound completely, driving my B&amp;W 802s to sound incredible, it may be interesting to see if it does the same for this system?

    6

  • @Brunodc4694 · 9 months ago

    I lost it with your size comparison.😂 I spent most of my life in Rome and I&apos;m way too familiar with Nastro Azzuro. Cheers Mate.

    2

  • @oscargonzales7948 · 2 months ago

    I bought two ZA3 and have them running as monoblocks with Indiana Line Utah 5 and they proved to be quite up to the work. Hiding the two powerplants away and they are really good for smaller rooms. They also have a 12Vdc Trigger function for shutting them down. I like very much your reviews and it is a great thing that you try out and present also products for the lesser well endowed pockets. Thank you for it.

  • @MrWslindsay · 9 months ago

    They are definitely fun to play around with. Once I hook up an older class AB amp I always get the impression of &quot;ahh...that&quot;s what I&apos;ve been missing.&quot; Just my opinion. They&apos;&apos;re still fun. These get just as hot as my old Adcom GFA 5802 which is never good 😄

    1

  • @mfr58 · 9 months ago

    One of the big choke points in my mind with these kind of modules is the long thin dc supply cables and puny power input jacks.

    8

Up next

LIVE

Fosi Audio V3 Mono vs ZA3 - which is better as a MONOBLOC AMP?

Normcore Greg · 29K views

LIVE

Fosi V3 Mono. A remarkable little powerhouse of an Amp. I really liked it. Sounds very good.

Old Guy Hifi · 11K views

LIVE

China's New $69 Invention Is Destroying the $42 Billion Hi-Fi Empire - Here's How

Hi-Fi 2050 and Everything Audio · 7.9K views

LIVE

Fosi V3 Mono Review. I Fried One! 🔥🤣

Erin's Audio Corner · 49K views

LIVE

E209: The Fosi V3/SparkoS SS3602 Full Monty

the audio analyst · 24K views

LIVE

Yamaha A-S801 - Six Years Later

Lucid Listening · 18K views

LIVE

Be a REAL audiophile with MONOBLOCS - Twin Fosi V3 Mono

Audio Masterclass · 70K views

LIVE

SUPERTEST - NEW FOSI V3 MONO vs V3 & ZA3 & 5000$ & 9000$ Amps

VirtualHiFi · 98K views

LIVE

A GENUINE BARGAIN? Fosi Audio V3 Amplifier Review

A British Audiophile · 274K views

LIVE

NEW Fosi V4 & V5 Mono Explained | The Design Story Behind Them

Audiophilesdoteu · 18K views

LIVE

Best Audiophile DACS from Cheap to Expensive 2026

Honest HiFi · 62K views

LIVE

I Found out HOW They can make SUPER AFFORDABLE Audiophile Amplifiers!

Jay's iyagi · 106K views

LIVE

Fosi V3 Mono MAXimum Cooling - COOL YOUR AMP

Consumer Tech Check · 29K views

LIVE

Fosi Audio V3 Mono TPA3255 Based Mini Mono Amplifier

Williston Audio Labs · 108K views

LIVE

Fosi Audio V3 Mono Amplifier. Are Monoblocks the way to go

Gabster · 17K views

LIVE

10 of BEST HiFi SPEAKERS COMPARED! Costing Under £1300

Pursuit Perfect System · 345K views

LIVE

The Best Cable - Wire For Audio? Let's Look Closer!

Mr Carlson's Lab · 442K views

LIVE

Fosi V3 Mono vs ZA3 Mono: SOUND DEMO & Key Differences!

Late Night Unboxing · 18K views

LIVE

MONOBLOCKS UNDER £300 | Fosi Audio ZD3 & V3 Mono Review

A British Audiophile · 76K views

LIVE

Fosi Audio V3 Mono Review - Mini HIFI Monoblock Amplifiers

Audiophile Heaven · 6.5K views

LIVE

Never Do THESE 5 Things With Your Hi-Fi Amplifier (#1 Can instantly IMPROVE your sound.)

Honest HiFi · 9.1K views

LIVE

Fosi ZA3 Amplifier Deep Dive Review (with Data)

Erin's Audio Corner · 92K views

LIVE

The Fosi V3 Mono Amps are AWESOME (just make sure you buy them correctly)...

Forever Analog · 90K views

LIVE

Fosi Audio V3 Mono TPA Class D Power Amp Review

Tharbamar · 49K views

LIVE

A Budget Amp That Fixed Class D's Problems... Then Added One More -Fosi BT20Aa Max

Matt Coykendall · 28K views

LIVE

5 CHEAP Hi-Fi CD Players EVERYONE IGNORES (But Audiophiles Secretly Love)

Honest HiFi · 102K views

YouTube, with the door locked.

Aegis plays a clean stream instead of YouTube's player, so pre-roll ads, trackers, and fingerprinting never ride along. Drop Shields any time if you want the official player back.