Topping PA5 II Speaker Amplifier Compact Desktop Amplifier Fully Balanced AMP (PA5 II, Black)

Using this amp with an Echo Dot so that we can listen to Amazon music on our Klipsch speakers. It works great for this use case. Just leave it on all the time / the Class D amplifier uses very little electricity in idle. Use our voice to adjust volume as necessary. It works great. Haven't had any problem with it yet. :)

Okay, here's my little test that I do. A test that might be crude, but it serves as a quick INDICATOR of amplifier quality: Okay? Ready? Here's what I do; play a music track with no sound on it, turn the amp up all the way the MAXIMUM volume, while very SENSITIVE speakers are connected, and I put my ear right next to the Tweeter and I try and hear ANY hint of hiss, Buzz or hum. Needless to say this thing passed. ZERO audible hiss at all, and I tend to be very sensitive to these kinds of higher frequencies too. It's incredibly capable, very low noise, very low distortion, several YouTube reviewers have touted it's clean, rich, precise sound without sounding tinny or like a traditional class D in the slightest. In a blind test, I personally would venture that nobody could tell the difference between this amp and one that is 10 times its price. It's incredible. The fact that this quality and kind of performance is available for under $1,000 is incredible. The fact that this thing is under $250 is a miracle. Very, very, very satisfied with this.

At low volumes, I could not ask for more. Perfectly accurate. However, it has no balls. Don't expect this to replace a 200W old-school Krell. Or even a 50W class A amp. I know, measurements do not lie, and I know it measures well, but to me, it only shines as a mids and highs amp.

This is an amazing bargain - plenty powerful to drive my large bookshelf speakers, well-built small package. Excellent sound quality.

Simple, eficiente, potente. Una muy buena calidad de construcción y un resultado de sonido muy bueno por su precio.

Play incredible sound with a pair of Polk Audio Monitor XT15 bookshelf speakers. Neutral, clean, open soundstage.

It is very well reviewed product, distortion and power measurements are available on internet. Sounds very clean, does the job very well. Note the power rating before deciding, if you don’t need much power then this is a great buy for you. Highly Recommended

La calidad de sonido es suprema, para completar el par te recomiendo usarlo con el Topping E50, combinación brutal. 👌😎

PFFB機能のあるパワーアンプという事で購入しました。 しばらく聞いていると、これまでのPFFB機能なしのアンプと比べて狂いのない？訛りのない音？で聞きやすいと思いました。 機能なしのアンプと比べると少し高価ですが購入する価値はあると思います。

Ottimo prodotto, na reso perché non ha soddisfatto ke mie aspettative "Troppo dettaglio"

C etait bien parti ( tres bon son et chauffe pas trop) mais une sortie est deja en panne. Vous qui voyez.

Compared with Fosi Stereo V3, Fosi ZA3, Aiyima A70. Used with a Wiim Ultra pre/dac. I liked the V3 the most, followed by the A70, then the ZA3, which Is felt was quite a letdown. Actually the V3 came very close or just as much fun as my Audiolab 6000A, which says something. Then this one came in. And I'm still awaiting the 2x Fosi V3 mono's. First impression, quite a wow! I expected them to be quite similar to the A70's or V3's, looking at the specs, but they have something extra. It's the combination of clarity, but also the warmth It still manages to give. A very pleasant treble. Quite heavy on the bass, which is pleasant with rock / pop. On higher volumed however It loses some control, especially the high frequencies become a bit harsh. With electronic music, ambient style, there's a really nice sense of space. And I kind of expected It to go overboard with bass in this genre, as the other amps are somewhat lighter on the low-end with pop/rock. But somehow they handle this very well too. Even though they're present, and not as airy and detailed as the Audiolab's or V3''s, they do have a nice punch and roundness to them, that doesn't make It sound boomy. The power is a bit lower than the others though. They don't have the same power, but what they drive (and which is more than enough for my Dali Spektor 2's) they do with optimal control, better than the Fosi's and Aiyama's. But the watts mentioned are peak-watts (If real at all), not RMS. So take this into account with harder to drive speakers. I reallly enjoy this Topping. But, I also really like the Fosi V3's. Both for different reasons. The V3 is more airy and detailed in the low frequencies and a generally very pleasant to listen to treble. This Topping has a bit more depth dynamics, things moving back and forward more and blackness in the background. Especially with older (rock/pop) music I really like the low-end of the Topping. I'm quite allround in my taste, so that's never easy for finding the perfect sound. The Topping also has a trigger input, which is kind of a must have, combined with the Wiim Ultra as pre/dac. Which the V3 stereo is lacking. This Topping however is 3 times the price of the V3's ... they're not really worth that price difference. Unless running them in are going to make the difference, we'll see. The V3's also cool better. The Topping can get quite warm. If you're on a budget It would be no-brainer. Topping doesn't have a good sheet looking at realiability however. And I'm still waiting for the V3 mono's to test out, which comes with auto on function. I'll update the review If I learn more.

It plays very nice, low noise level, a lot of details. But the power is not 140W or even 100W, more like 35W-40W. I don't know how they measure that power rating but it's very exaggerated.