NobsoundNS-10G Bluetooth 5.0 2 Channel Power Amplifier HiFi Stereo Audio Mini Amp Wireless Receiver 50Wx2 for Home Speaker with USB & Bass Sound Effect (Black)

This is a great, very small, low cost, digital (class D) amp capable of driving regular speakers. You not only get the amp, you also get a separate power adapter (60W) and all of the interconnecting cables you might need. All of the components are very high quality. I use it to drive a couple of Tang Band 4" full range speakers in place of a sound bar for a UHD TV. In Bluetooth mode it is easy to connect to and sounds great. Just make sure you read the manual about using the two control buttons, it takes a long press of the power button to turn it on. The only change I would make is to have the bass boost feature work for the AUX line input mode, right now it is designed to only work with the Bluetooth mode.

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.

I got this guy powering 2 truck behind seat speakers with 10 inch woofers and 3 inch tweeters and they play loud. It’s hard to believe considering this thing is half the size of a pack of cigarettes. I doubt it puts out advertised watts but it works fine especially when considering price .

Nice sound fron a small inexpensive package. Beware though, their implementation of a USB sound device is incomplete. Although they rely on the Windows USB Audio driver, they ignore Volume control commands. So, when connected to a computer, you get a volume control and sound mixer by virtue of the Windows driver, and you can move the sliders up and down all you want, but it has no effect on the NS-10G. Likewise, the Volume up/down buttons on your keyboard have no effect.

This little amp was a nice addition to my audio setup - that is for the first week or so. Then it quit working. I did not change anything in the setup but it simply would not work anymore. If this had better longevity I would absolutely recommend this product.

Great quality audio and plenty of power (4ohm speakers) AND so inexpensive. Seriously…. How do they make it so compact and good looking. I would highly recommend these amps. Brilliant

Great little amp. I primarily use this for bass shakers for sim racing and the occasional movie so can't comment specifically on audio quality of the amp. For tactile transducers however, this little amp pumps out a strong and clean signal to drive the Dayton Audio BST-1 well. Very happy with its performance.

I bought an NS-10G in 2017 for occasional use. Due to a move in early 2020 it became my primary amplifier. I'm impressed. Speaking as an audio engineer I think this design beautifully balances the tradeoff between low cost and features/quality. Of course it's not super high fidelity or high power, and the Bluetooth reception range seems to be limited if there's anything in the way, even just a bookshelf. But the self-noise seems very quiet; it's not noticeable to me unless I listen very carefully for it. For background music using existing speakers, taking little space, and costing next to nothing (for audio gear), I think this tiny thing is amazing.I took off a star because the power button broke a couple of days ago, after four years of use, due to a design flaw (high-profile surface-mount momentary-contact button exposed to strong shear force when pressed). But after looking through dozens of replacement options, I decided to buy another NS-10G. I need both USB and Bluetooth input and I really want the USB in the back for cosmetic reasons. NOTHING I found balanced these features with quality and low cost as well as the NS-10G. I'll just push the power button as gently as I can.UPDATE: The replacement failed within a few minutes of power-up. "Infant mortality" we call it in the biz. Guess they don't do a lot of testing before they ship? If the next replacement also fails I'll have to change my glowing review :(