Nobsound Mini Bluetooth 5.0 Power Amplifier, Stereo Hi-Fi Digital Amp 2.0 Channel 50W×2 with AUX/USB/Bluetooth Input, Wireless Audio Receiver, PC Sound Card with Power Supply (Black)

My application of this little guy is probably an end case... I have a big piece of property and my wifi will not reach certain areas... so I bought this guy and tied it into outdoor speakers and connect through a USBc cable... it does the job... no listener fatigue... the speakers help... I'm also an audiophile... Krell... Audio Research... magneplanar... this ain't it... but if you want a little simple device under 30 bucks that would tie into a WiiM endpoint or a single source like an iphone and have nice sound... this is an easy choice...

The reviews that claim this is "unbelievable for the size and cost" are rather... apocryphal.That said for a USB DAC, I would definitely say it's fairly decent, and overall does a good job.I use this to drive some 160W Pioneer reflex loudspeakers and it does a good job; I have this amp at 1/4 on the volume dial and that's plenty enough for room easy listening, with little noticeable distortion and no obvious clipping. The connectors on the back work with both spliced cables or banana plugs; I did reuse some existing decent audio cables and it's comical how they drag the small lightweight amp down.I do have some cons though:- By default the unit seems to enter Bluetooth mode (blue status led) and I need to unplug/replug the USB cable for it to switch back to USB (green status led).- Mode changes are accompanied by an absolutely unnecessary "USB mode" or "Bluetooth mode" announcement via the speakers. I wish this could be turned off as it's wholly unnecessary to hear when I power up my system.- When the USB plug is connected and the laptop source is not issuing any sound, there's a clear white noise hiss coming out of the speakers. It is _very_ noticeable. That does not happen in BT mode. So let that sink a bit: in USB mode, there's a clear *analog* white noise hiss when there's no USB signal... That leads me to believe they don't turn the amp off even though the USB is not providing any data. That white noise is present in the "quiet" sections of music too.- I tried to use it in BT mode and there's a clear noticeable delay, at least 250 ms or more. It's significant enough that I can't watch a movie with that in BT mode.- The power supply is fairly light and never seems to get too hot. Probably the typical buck converter design. It would not be a bad idea to put these behind a power strip and cut power completely when you're done.Bottom line : The sound is acceptable for what costs a fraction of a proper USB DAC. However the BT/USB switch and the mode announcements are real turns off.

This Nobsound Mini Bluetooth 5.0 Power Amplifier works for what we needed - which was a way to transmit signals to our outdoor speakers. Previously, the unpowered outdoor speakers had been connected to a head unit in the house and was able to be controlled via a remote.Alas, that head unit bit the dust and technology has moved on so most music is now digital (as opposed to the CD's we were using). The amplifier from the speaker manufacturer was exceeding expensive, even with a discount, so I found this unit.The item comes well packaged and has the appropriate connectors for whichever input you would like to use. This unit works and is able to accept bluetooth music from my phone (and, presumably, a tablet) as well as my PC (where most music resides). I saw no reason to test the other inputs, but I'm sure they are fine. This amplifier will return music to our spring evenings outdoors.There are a few annoyances, however. I think most have been addressed by others, but here is my take. First, the instructions are just not very good. When I opened the package and saw no markings or instructions about the bluetooth, I thought it wasn't included. Fortunately, I re-read the description and verified that it was. Checking my phone, I saw the device and all was good from there. Secondly, the volume control is odd; it can be adjusted in two places, either the source (phone/PC) or at the amp via the knob. I think I'll be selecting a set volume on the amp and let the source determine the volume level (usually the phone, because the PC and amp are located upstairs). Finally, and I don't know if this is something that can be controlled, but I left the amp connected to the PC and all sounds were transmitted - even though the music player was closed. So, various beeps and tones were broadcast to my neighborhood. I solved that by turning the amp off.Summary - good value amp that accepts bluetooth signals for my outdoor speakers. Has a few quirks, but I'd recommend it to others.

Will work with 12V car/boat/golf cart setups. Just cut the AC plug off and connect the red and black wires to the appropriate wires on the 12V DC system. So far works as advertised providing power to speakers on golf cart.

I have this powering some old speakers from a home entertainment system and spliced the wires off to a set of old computer speakers. This little sucker is powering all 4 and no issues, sounds great

Don't buy this for bass shakers. No idea why idiots always recommend it.Have it running 2x Dayton BST-1 bass shakers on iracing with in game LFE enabled and the amp overheats after about 5 minutes at 100% output, 15 minutes at 80%, 30 minutes at 50% where you can barely feel the shaking.The included power supply is 19v 3.42a which can only provide peak output of around 65w, so about 32W per channel, probably close to 20w RMS per channel. Not sufficient for BST-1 bass shakers which are rated 50w RMS. If you're looking for a bass shaker amplifier, these chinese brands are all about the same, spend the little extra and get one that does 100w x2 and includes a stronger power supply.Contacted support and they suggested using a stronger power supply. So I can overheat it even faster? They finally offered a 5% off coupon on another product instead of a return or refund. I would have preferred to swap it out for one of their stronger offerings, but bought a different brand instead because of that insult of an offer. The products are cheaper on amazon than their own website even with 25% off.Some advice if you primarily play iracing, the in game LFE is single channel, so just get a BST-300EX and a single good mono amplifier that can handle 300w RMS, don't bother with the dual BST-1. You can't really feel much difference between front and rear, let alone side to side on a multi channel setup.TLDR bad buy

This was offered to me as a discounted item with a pair of Douk bass transducers. The price point was already pretty appealing before that.So far, it’s working pretty well but I had to buy a separate 100W power supply to get the most oomph out of my setup.My main gripe is the bluetooth functionality. Every now and then, whatever I’m doing gets interrupted with a voiceover that I can only assume is part of the bluetooth pairing process, it only plays through the connected transducers and is unintelligible.Totally breaks the immersion of whatever I’m in the middle of, I’m likely going to take it apart and modify it to outright disable bluetooth.

sounds good for patio speakers, mine has lived outside for 2 years, bought this one as a spare.

A joke amp. It is a fraction of the power advertised

Tenía guardadas unas bocinas de un teatro en casa Logitech Z906 que se me dañó y que me daba mucho pesar deshacerme de ellas porque me parecen muy buenas, investigando di con este pequeño aparato y después de leer y ver videos en YouTube decidí comprarlo, la verdad me impresionó por varias razones, lo mas obvio es su tamaño (en general casi todos los amplificadores de este tipo son grandes y feos) lo tenía pensado como sistema de sonido para mi sala y es muuuy discreto, la segunda razón es la facilidad y sencillez para conectarlo y configurarlo, lo haces literalmente en 3 min y por ultimo su potencia es muy buena tal vez le hace falta un poco de bajos pero por el precio tan bajo tengo un sistema de sonido bluetooth e inteligente (ahorita explico esta parte) decente y puedo seguir utilizando mis bocinas.Bueno ahora esta la parte de hacerlas inteligentes, me gusto tanto el sistema que quise ir un poco mas alla y sacarle mas jugo, pues descubrí como conectarlas a un chrome nest y ahora las instrucciones de reproducción que le doy a mi asistente personal se reproduce en mis bocinas a través de bluetooth, simplemente increíble para unas bocinas que estuve a punto de tirar literalmente hablando, así que ahora tengo un sistema de sonido de buena calidad y es smart, no puedo pedir masCompraré otro para las otras bocinas que tengo del mismo teatro en casa y las pondré en mi oficina, me tiene encantado.

Not working and not powering on at all

Cumple su función, lo recomiendo

Buena conexión bluethoot sin embargo debería venir un par de cables para conectar a las armellas solo vienen cables macho hembra y para PlugIn