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Reviewed in Japan on March 12, 2025
パワーは十分だし、音質は良いです。これ以上の音質を望む場合は、高価なオーディオシステムを構築することをお勧めします。(良い音を聞きたければ、サブウーファーが必須だと思いますので。)私は、ボーズの小型スピーカー(5.7cmコーン型フルレンジユニット)に箱を自作してテレビに設置し、このアンプを使用しました。低音はスピーカーが小型のため出ませんが、中高音域はユーチューブで音楽を楽しめるレベルです。(低音のテスト動画で100Hzは聞こえました。)テレビの下向きスピーカーの音は不快感があったので、気持ちよくテレビを見られるようになりました。
Biff
Reviewed in Canada on February 2, 2024
Been an avid home audio enthusiast since the early 90's and have two home theaters in my house, so I'm no stranger to amplifiers and sound quality. This little box is much beefier than its looks and small size (and price) let on. Extremely low noise, seems to have a flat response (no coloration or EQ of the input), and the class D pushes plenty of air from a set of quality bookshelf speakers. I was expecting this thing to be a rinky-dink little amplifier, but it punches a lot higher than its weight. Well worth it.
Fusion Head
Reviewed in Canada on April 5, 2024
Fosi seems to be getting good reviews these days by audio media folks. I've had a Fosi 50Wx2 amp for a while and it's worked with no problems, but I need another to drive a pair of Atmos height speakers with a potential max of 120W so this Fosi 160Wx2 amp seemed to fit the bill. As always, very affordable, well built, good RCA and speaker (banana plug post) connectors, and works fine. I can't say how 'good' the audio quality is relative to other choices, but it seems good, and the amp does not seem to have any noise floor (hiss) which is important.
D. Hughes
Reviewed in Canada on May 31, 2023
DOA so can’t speak to sound quality. Suffice it to say speaker connectors would accept max 18 gauge wire if you don’t use banana plugs, which is annoying.
Customer
Reviewed in Canada on April 7, 2023
Very pleased with this little amp. Sound quality is very good.
Old Sparky
Reviewed in Australia on July 18, 2022
I have had an old home theatre amp powering the speakers in my warehouse for years, when this amp died I found this unit to replace it, I wanted the 160 watt power to power some old 200w speakers. I am very impressed with this. Full sound with good bass and loud enough to wake the neighbours down the street.
E. Wong
Reviewed in Canada on February 20, 2022
Owned at least a dozen chip amps, all the way back to Tripath amps from Trends Audio, Panasonic receivers with chip amps, SMSL, Dayton Audio, etc. Currently using a bunch of small amps powering house speakers.The Fosi Audio amp are powering desktop speakers and another unit powering inefficient floor standing speakers. For desktop, it's overkill and you could blow out your bookshelf or computer speakers if you aren't careful. For my 83 db per 1 watt at 1 metre inefficient floor standing speakers, the LFT8s, these have plenty of juice for moderate listening levels.A true integrated amp with one set of inputs, no preamp out, no bridgeable channels to mono, no tone controls, no fixed volume to use with a preamp, just power and volume control. Simple and so far reliable.No hums, pops, interference noises. External power supply so the amp is tiny but the power supply is just as big. Nice anodized finish. Good value.
chris ball
Reviewed in Canada on November 8, 2022
hooked up to some big old Magnepan speakers for now and it's a thing of beauty, soon will be on some older Koss bookshelf speakers with upgraded woofers.
Carter K.
Reviewed in Canada on April 8, 2022
Been using it for awhile on 2 speakers that statistically should be pushing the limits of the amp and have had 0 issues actually seems to overpower my speakers, great audio, volume knob feels like nice quality. wish the on/off switch was a little more beefy feels pretty weak but still works as it should. love the screw downs for the power in/out to speakers makes life so much easier to put it together. Would Recommend
stephan
Reviewed in Canada on May 22, 2021
I use this amp to power 2 small 4inch 6 ohm speakers in my kitchen. I am in no way an audio expert but I find that it plays very well considering the price and footprint. I have played it for whole days at a time at mid level and I really can't complain. It lacks just a little bit of low end punch to be 5 stars.Very quiet noise floor and overall great experience.
Florian
Reviewed in Germany on December 15, 2021
Der Verstärker ist wirklich kompakt und sollte eigentlich auf jedem Schreibtisch einen Platz finden, wenn man ihn, so wie ich, als Verstärker für Lautsprecher am PC verwendet.Das Signal für den Verstärker kommt von einer ASUS Xonar Essence STX und der Klang ist richtig gut. Betrieben werden ein Paar Teufel Theater 500S und Leistung ist ausreichend vorhanden für die beiden.Wenn kein Tonsignal anliegt und man den Lautstärkeregler voll aufdreht, hört man ein Rauschen, aber in normaler Zimmerlautstärke ist ohne Signal kein Ton hörbar.Ein Kritikpunkt ist der Lautstärkeregler. Weder am Drehknopf noch am Gehäuse ist irgendeine Art von Markierung um die ungefähre Stellung zu erkennen. Das wäre verbesserungsfähig. Habe bei mir ein Stück buntes Klebeband drangeklebt, sieht nicht schön aus, erfüllt aber den Zweck. Ansonsten für den Preis von 70-80€, je nach Angebot, ein guter Verstärker.
Freddy
Reviewed in the Netherlands on January 28, 2021
Ik ben geen hifi-deskundige, ik gebruik de versterker vooral om geluid vanaf mijn computer af te spelen. Daarvoor vind ik deze versterker perfect. Tenminste, zolang ik hem verbind met mijn vloer-luidsprekers van 20-150 Watt / 8 Ohm. Ik heb het volume eventjes vrij ver geopend en het geluid bleef duidelijk.Ik heb hem ook, met een CD speler, gekoppeld aan twee zeer goede jaren-70 luidsprekers van maximaal 20/30 Watt / 4 Ohm, maar daar vond ik het geluid niet goed klinken, het miste warmte. Vervolgens nog aan een set slechte Sony luidsprekers uit de jaren '90 van max 70 Watt / 6 Ohm, en ook daarbij was ik niet tevreden. Bij de Sony luidsprekers viel me ook op dat er gekraak was als je aan de volumeknop draait. Dat gekraak is er niet bij de andere luidsprekers. Geen idee waarom dat er bij de ene luidspreker wel is en bij de andere niet.De enige andere kritiekpunten: het volume is lastig af te stellen als je de versterker maar nauwelijks open hebt, maar het lukt wel. En de transformator: die is net zo groot als de versterker zelf. De ruimtewinst van zo'n kleine versterker gaat dus een beetje verloren doordat er een baksteen van een transformator aan hangt.Ik had de andere recensies al gelezen, dus ik wist dat ik de spanning eerst op de versterker moest aansluiten en dan pas op het lichtnet.Dat de transformator permanent een lichtje heeft branden, ook als de versterker uit is, is misschien vanwege Engelse wetgeving. Het stoorde mij, dus ik heb hem nu in een schakelstopcontact gestoken, zodat ik ook de transformator kan uitschakelen zonder steeds de stekker uit het stopcontact te moeten trekken.Alles bij elkaar vind ik het een prima ding voor het geld.Ik heb een andere Fosi versterker, met buizen en lager wattage, gekocht voor de zwakkere luidsprekers. En die gaat niet goed samen met de zware vloerluidsprekers.Zelfs al hebben alle Fosi luidsprekers dezelfde transformator en zouden ze dus hetzelfde eindwattage moeten leveren, er is een duidelijk verschil in kracht tussen hun versterkers met hoog en met laag wattage.
Joshua G. Feldman
Reviewed in the United States on June 8, 2020
The Fosi TDA7498E is an improvement on previous Tripath-chip-style amps. It outputs more power, sounds cleaner, and has excellent clarity and rhythm - if you respect its limitations and use it with the right ancillary gear - by which I mean very sensitive speakers. This is my 4th Class-D "tripath-style" amp and each one has been better than the last. The whole concept is that a Texas instrument chip converts the signal to a gain stage directly on the silicone and the chip itself drives your speakers. There is very little additional circuitry and that's the key to its great sound, and also it's limited power.As others here have rightly pointed out, this ships with a 24 volt switching style power supply. The amp itself has what looks like 20-25 watts worth of capacitance. This isn't a 160 wpc amplifier. Fosi doesn't support that specification and it's probably derived from some kind of BS "instantanous" (i.e. transient) power delivery stat based on something theoretical. The real usable power - in my experience in room - is about 20-25 wpc with a 1% thd ceiling (guestimated using listening). I'm a 55 year old long time audiophile and I know what distoration sounds like. The Fosi TDA7498E is a tiny amp. Its binding posts can only handle slender flexible speaker cable. It has limitations driving speakers with sensitivies lower than 87-88 db/watt to satisfying volume levels and I'll describe exactly how I found that out - but the TLDR is that used with a high quality source and with efficient speakers I'm able to get really satisfying audiophile sound of them which makes them a stone cold audiophile bargain.I'm using the Fosi TDA7498E in a near field application with Athena AS-B1.2 speakers (which have a 90db/watt sensitivity). My source is generally a Windows10 pc running Qobuz and local FLAC rips feeding an ancient PS Audio Ultralink or Muse Model 2 DAC via a Musical Fidelity V-Link. I've used it with a Topping D70 (which is slightly less musical, but can play high-res). I initially used Straghtwire Maestro speaker cable, but was so inflexible that it damaged the binding posts on my first TDA7498E. Since then I've used used thin flexible wire (Audioquest type 2.1).When my new, unbroken second Fosi TDA7498E arrived, I had just received a pair of KEF LS-50s and was trying to drive them with an old AudioResearch tube amplifier and was having trouble getting good sound. I was awaiting delivery of used 50 wpc audiophile amp (the overlooked and thus low-priced April Audio Stello S100) - but it was delayed in delivery. I plugged the Fosi TDA7498E into the LS-50s in the living room and they meaningfully improved the sound on the ailing tube amp. But their grip on the LS-50s wasn't musically satisfying ultimately. The LS-50s are inefficient (85 db/watt) and low impedance (dips to 3.8 ohm) speakers and they ran the little Fosi TDA7498E into distortion before satisfying living-room listening levels were achieved. This doesn't jibe at all with the Fosi's claimed 160wpc 2-8ohm specs. More confirmation came a week later when the April Audio Stello S100 came and, despite it's modest 50wpc power rating, blew the doors off the little Fosi TDA7498E with the LS50s. It's a $1200 amp ($400 used), so it's not surprising that it handily beat a $75 integrated amp. But the reason it beat the Fosi was power. The TDA7498E ran out of gas and began distorting well before the Stello with the LS50. If you attempt to treat the Fosi TDA7498E like an ordinary amp with the specs it claims you will be disappointed.I also used the TDA7498E with Creek Audio Epos and ProAc Response 2.2s speakers and it lacks adequate power to drive any of them to really satisfying levels either. But, I cannot emphasize this enough - used with the 90db/watt high efficiency speakers it DOES have enough power to fill the room and do it with brilliant clarity, great bass, and excellent musicality. They are dead quiet in operation. With the source muted you can turn the volume all the way up and no audible hiss is detected at the sensitive speakers within 6 inches. You can hear that as a dead black background. The dominant sonic attribute I treasure with the Fosi TDA7498E is speed. Really good startle or "jump" factor. Not only is this amazing at the price - it's also performance that's clearly superior to earlier, lower powered, d-class tripath-style chip amps. This level of performance is incredible, IMHO and makes it a natural for shoe-string audiophiles.To sum up:1) Buy the Fosi TDA7498E if you have a small room or a nearfield application and speaker with efficiency of 88db/watt or more. I'm guessing that 88db/watt is ok. I was only ever satisfied with 90db/watt speakers (the super cheap Athena SB-1.2 which were $150/pair back in the early 2000s).2) Make sure you use slender and flexible speaker cable.They are so good for the price I am thinking of buying a second one and using them with RCA cable y-adapater splitters to try running them as bridged monoblocks (not a supported configuration and could well blow them up). If that doubles the effective 20wpc to 40wpc it might be enough to drive the LS50s, barely. In the meantime, it's the heart of my computer workstation nearfield listening which is, truth be told, my primary listening venue. This tiny integrated amp is excellent in that context.
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