- it first came out of the left speaker then the right speaker, and over the past several hours of listening it has been getting louder

Tiny yet powerful amp to hook with medium-to-large sized passive speakers

Nice looking piece, works fine for my Micca speaker, had to remove one star because the first one I purchased had a weird issue where the speakers would sound great only at certain levels and for some reason in the middle of the sweep they would become muddy like you can't believe

Hooked it up to my TV, right speaker didn't work

The speakers sound smooth with great clarity

In fact, I'd get this amp (as my budget piece) and spend a bit more on good speakers and sound source (receiver or computer card).

My last application option is to power passive speakers being used as studio monitors from my recording interface (Focusrite Scarlett 2i4).Due to the lack of a proper adapter at this time, I have not been able to ops check that configuration.

A pair of inexpensive bookshelf speakers (look in the frequently bought links at the bottom, any of these are probably ok).

I tried it with a pair of inexpensive Micca MB42X speakers and a pair of not-so-inexpensive Phase Tech PC-60 bookshelf speakers.

 This is a video on the SA-50, which is a class D speaker amp from SMSL, having serve me extremely well the Aune x3 passive speakers.

I use this with a Casio PX-150 digital piano outputting to small good quality speakers

I only put that in there because it takes more power to drive speakers with emphasis on the bass as opposed to feeding it a flat signal... and this handles it beautifully

If I had more expensive speakers hooked up, I probably wouldn't be so happy.

Very quiet when there's no load, drive the 30W RMS speakers well

If you're just driving B652s or other really efficient speakers, there's really no need to get such a powerful amp, but if you're driving inefficient speakers like the Miccas, this amp will do you wonders

I am sending a strong source signal to the amp that's able to push a 4 ohm load with appropriate power levels through a decent speaker wire with good banana plugs into 2 Micca MB42 C speakers

If a person were not building it into something, e.g. making a passive speaker into a powered speaker, then would additionally need either a few small pieces of wood or a purchased enclosure.

I have ruled out the speakers being a problem, however since this pop is so infrequent, I have learned to live with it

It drives speakers just fine and it will get louder than I can stand to listen to

After using it with so many different speakers, I'd suggest models that emphasize highs, like cymbals, because the amp seems to roll off the highs a little too much and I try to never use EQ, brighter speakers will also solve this and would be my choice, if you have a choice

The amplifier uses a feedback signal that ensures that the amplifier's frequency response remains perfectly flat within the entire frequency range regardless of what strange speaker impedance you connect

Makes my fairly cheap speakers sing nice and loud.

Makes my fairly cheap speakers sing nice and loud.

I can get the volume up really high before hearing any sort of distortion, and, in fact, it hurt my ears way before it started to hurt the speakers

Will update as I try other speakers as well

so they are not going to damage the speaker

If you're just driving B652s or other really efficient speakers, there's really no need to get such a powerful amp, but if you're driving inefficient speakers like the Miccas, this amp will do you wonders

Despite lacking an optical input, this amp is perfectly suited to connect analog audio out from your computer to drive a stereo set of nice (traditional non-powered) speakers

A little lacking on the low end bass, (could be just my speakers) but it produces nice clean sound

Perfect to drive some nice bookshelf speakers right from my PC.

I blame the speakers more than the amp for that.. feels well made & the sound is clear

The device does not turn on or only powers the right speaker unless I bend some of the wires on the power brick left to right

This amp is more than adequate to drive a pair of modest bookshelf speakers

These will be used to power 4 KRK R6's on stands, which also make wonderful bookshelf speakers

Powers the speakers very well and sounds wonderful

There is no background hiss whatsoever even when driving sensitive speakers

This amp achieves a dynamic range of around 100 dB which should be enough if you don't have very sensitive speakers

This amp clearly has its limitations, so trying to pair it with some better speakers or comparing it to a big amp like my tube amps would be unfair and illogical.

Just make sure you have a decent sound source and speakers

I know there's better subs, speakers, amps, sound cards, etc

My main speakers are not the most efficient, so this couldn't drive them very loud without sounding strained

terrible amplifier one speaker sounds more than the other and above 30% of the volume a horrible distortion

With sensitive speakers, however, there is an ever present noise that doesn't go away

I replaced it with the SMSL Q5 Pro mini amp and it plays cleaner using the same speakers.

Hooked it up to my TV, right speaker didn't work

and I can easily discern the difference in quality from Spotify using this little amp and a set of nice bookshelf speakers

I bought this to power two nice bookshelf speakers

I bought this amp to power an old pair of cheap bookshelf speakers but after listening to it I almost wanted to replace my stereo system since I mostly only use the aux in

While other reviewers have noted some hissing with more sensitive speakers, I can't say I've had that problem at all

It does have significantly less power than the SMSL, so if you're looking to fill a large room or use it with inefficient speakers, then don't bother with the Topping or the Lepai

Portable bluetooth speakers can sound very good, but it is nice to have stereo separation again when listening at home.

But using it with some decent small bookshelf speakers with a PC/Laptop as the source and you will be surprised at what this can do!

But then keep in mind that neither of these amplifiers will be able to drive low-sensitive speakers to high volume given their limitations in output power

But if you want your computer to drive a pair of passive speakers competently, it would be hard to beat this little amplifier for the paltry financial investment

I have matched it with a pair of Pioneer SP-22-BS-LR speakers and the system has a nice synergy going for it,sounding much better than its inexpensive price would indicate

Simple, quiet and puts out plenty of power when used with efficient speakers

I have this powering my outside patio speakers and it works great

On my smaller, more efficient speakers, however, it sounds nice and clean.

Yes, theoretically it can do 50W with the right power supply, but in reality, run it more than a few watts & the distortion will make the music unrecognizable & rip apart your speakers

Still works as of now

works as in passing sound one channel has distortion the other is fine....sux