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)

Like it's compact size, and its sound punches above it's price. Easily connects to bluetooth and I stream music via my phone. I have this one in my workshop connected to a pair of car speakers with resistors to make them 8 ohm and they sound GREAT with more than adequate bass. Also used another one in a project to make an antique German radio working again...As long as you don't think this is a high end audio solution, you should be pleasantly surprised...

I’ve got three different amps on my sim rig running various bass shakers, and this one’s been a pleasant surprise. It’s powering two BST-2s and while it doesn’t hit as hard as some of my other amps, it delivers enough punch to feel immersive without being overwhelming.Setup was quick and easy—it even comes with an AUX cable, RCA cables, and a power supply, so you’re ready to go right out of the box.A few design notes:• The green front LED is very bright—noticeable in a dark room.• The front is white which doesn't really 'go' with most audio gear.• AUX input is on the front, which makes clean cable routing tricky.• The volume knob is oversized and has very little resistance—it works fine but feels a bit excessive.Still, performance is solid and reliable. Great value and a clean, simple option for tactile feedback in a sim setup.

I am somewhat of an audio enthusiast and let me start by saying that this is one incredible and powerful little amp. I've recently completed a rebuild of some Polk Audio 6.5" outdoor speakers and bought this amplifier to power them. Let me tell you, the sound level is truly amazing. This amp really has some muscle and the sound quality is quite good. I did, however, have a slight issue and need to apologize to Douk Audio. I had a replacement unit sent to me due to Bluetooth audio dropouts and severe distortion. I thought I had a defective unit, but the replacement had the same problem. Come to find out, the problem is with my iphone 6. The iOS was recently updated to 10.3.2 and it ruined the phone's Bluetooth connectivity when connected via wifi. All of my Bluetooth devices now have audio playback issues. The Nobsound's Bluetooth function does work perfectly with my other tablets and wife's iphone 6 which has iOS 10.2.The build quality seems pretty solid and I do like the fact that it accepts banana plugs. So far, the longest continuous playback has been about 1.5 hours and the amp only has gotten moderately warm playing at mid to low volume. I will be putting it through the paces soon. I plan on taking it to the beach along with my outdoor Polks that I previously mentioned. I'll be using a 12ah SLA battery with a 150W inverter for power. I've tested the set up and it works pretty well. I estimate the battery should last about 6hours using the supplied 5A power pack and pushing the amp below 50% volume. The beach will definitely be rockin' when I show up....ha!. Seriously though, in my opinion, having a set up like this makes a portable Bluetooth speaker obsolete. This is like having your home stereo with you anywhere you go, EXTREMELY loud with clear quality sound. I don't normally write reviews, but after seeing the other lack luster and not so good reviews, I had to chime in. I am thoroughly impressed and will highly recommend this Nobsound to anyone looking to power an extra set of speakers. I will definitely purchase another whenever this one goes out.

Nobsound Mini Bluetooth 5.0 Power AmpGreat value and performs pretty darn well. It seems to give a nice neutral sound profile, which is what I was looking for in attaching my monitor speakers.Every now and then it seems to drop its connection, as others have pointed out. You have to unplug/replug the USB and/or the power to get it. to reconnect. Flipping the on/off switch won't do it - in fact, not entirely sure what, if anything, that switch does!Also, the 'PC Mode' announcement is makes when you connect to your laptop is a bit annoying and unnecessary, as others have pointed out.