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I was skeptical about this putting out that much power. My old school amp was 100 watts weighed about 80 pounds because it was full of copper wire. The one I currently have is a Onkio with built in tuner and it weighs about 15 pounds at 125 watts. This little thing fits in the palm of your hand! I used it to power some Sony speakers from a dead surround sound and an extra FM tuner . I tried just the 4 little book shelf speakers then realizing it easily over powered them added the wolfer and the mid range. I can get about half volume before they distort. I think it could handle larger speakers. The blue tooth works good if your phone is near it. The hardest part of this little thing is that it is so little! Hooking up wires is easy but a little larger unit with all the jacks in the back would be nice.

Still running strong after half a year. At sane playing levels there is little to no distortion. However it's not perfect, there is some floor noise. But at this price, it's hard to knock off a star with something imperceivable by the mainstream ear.

Amplifier became defective 2 days after the (short) return window closed. It must be known to the manufacturer that the lifespan of this device is ultra short, and with a short return window they try to stick their faulty product, as quickly as they can, to their customers. I do not recommend Nobsound NS-10G Mini Bluetooth 4.0 Digital Amplifier to anyone. No customer service. Pump and dump.

I'd recommend this. It performs as well, if not even above my expectations.
However, there are a few things to note:
>The green led is always on, even after I power down the adapter. I suppose the voltage is coming from the USB input.
>The bluetooth audio isn't as good as a direct connection or even the built-DAC thru the USB.
>The volumes do differ between the inputs.
But overall, I'd recommend it to drive efficient smaller bookshelf speakers. I've not tried it on floor standers as yet, but I suspect it may challenged to drive much bigger drivers.
I'm currently using it to drive about 20 year old KEF coda 10s; which aren't very efficient, but the little amp really does the job well.

For its size, this thing sure can get loud. Sound quality is okay. Not great, but also not terrible. Higher frequencies tend to distort and make my songs sound like they have a lower bitrate. But, honestly, what can you expect from a cheaper class-D amp. Love the Bluetooth and USB options. Makes it very easy to switch between my phone and PC.

Man has audio changed since the last time I was in the market. This little guy is driving 6 speakers in the house we just bought. Maybe not a setup for Audiophiles, but works great for streaming Spotify from my phone.
Plenty of power (note that there is a exponential relationship between power and volume; to get 2x volume you need 10x power.). The downside to any Bluetooth streaming is range and interruptions from other apps, phone calls or txts).

I like that this was small and inexpensive. I used it for my outdoor surround sound and didn't want a bulky amp. I plugged it into the headphone jack on the tv with the included cords. Works great and has been able to withstand the extreme cold weather of Michigan. I have it installed inside a protective box to keep it away from snow and rain.

This little thing has good sound! I like the buttons on the front. A nice feature about this unit is that it has a button marked bass/m but I think this actually means blue tooth enable or aux. It pretty nifty how the unit speaks to which mode you are in. Overall a nice and heavy little unit.
The only con is that I wish the speaker connections on the back were a different type of connection perhaps RCA jacks? They mount the bare wires extremely close to the frame.

This amp is amazingly small and yet sounds very good. Obviously the sound will depend on your speakers and the quality of the signal input, but with my set up it works well. Be prepared to fiddle with it however, as the instructions are poor. An in-line search for more information is not that helpful.
Things to know : the blue light behind the buttons flashes when in aux mode. This is annoying and there seems nothing you do will stop it flashing; when switching it on in either aux or Bluetooth mode the amp has a voice that announces the mode - this cannot be switched off and if your volume is turned up much, it is a very, very loud voice; the aux input is on the front, so while the unit looks good the cable mars the otherwise sleek appearance.

I was surprised by the build quality (aluminum frame) and the ease of setup with via bluetooth. I use it to power two small bose speakers and have an active sub. The Nobsound NS-10G doesn't have a subwoofer out, but my active subwoofer has L/R inputs and L/R outputs, so basically you wire the subwoofer in series between the amp and the bose speakers, and the subwoofer automatically decides what frequencies to use.
The extra bass button is really just a gimmick, in my opinion it makes the speakers sound more tinny.

I was sceptical buying such a small/inexpensive amp but it was for my father's bbq area and he LOVES it. Good sound for the price, and it's so small the plug pack is bigger than the unit!

Such a great little amp. Did the job perfectly. The power supply (plug-pack) is as big as the amp. But happy with the purchase. Matched to a couple of brick speakers did great.

This is not what I thought it would be and I haven’t tried it yet

Fabulous value for money and great sound from such a convenient small device. Excellent...get one!

very nice. works perfectly

Tarda mucho en llegar pero nada que no sepa

The item is good however the delivery was slow