Moukey Audio Mixer, DC 5V, 8 Stereo Ultra, Low Noise 8 Channel Line Mixer for Sub-Mixing, for Small Clubs or Bars, As Guitars, Bass, Keyboards Mixer, MAMX3

Excellent build - solid metal, smooth knobs, mono and stereo inputs/outputs. Simple to use and excellent volume control.

It's incredible how good this unit is, especially in light of the low price. I received it today, it took me about two minutes to hook it up, it produces zero noice and it works perfectly. There's no point in spending more money on something that's much more expensive.

It doesn't seem to work well when powered -IDK if it;s something with my rig or a grounding problem but it's of no matter to me coz for my purposes (mixing three signal level inputs) it works great!It also works well as a splitter - just turn it around and hook it up in reverse and you can have all your little amps looped together into a big-ol' neighborhood-clearing setup.The unit itself does not seem particularly noisy, even when the amp(s) are cranked but I haven't played it in a club or anything... any noise I've heard in my applications with this is seems to be latent from my cables, pedals and amps.I'm only knocking it down a star coz it seems to not work well when powered... My guess is it has something to do with the signal level(s) coming into the unit when powered; Unfortunately there wasn't a manual and Moukey is notorious for not having online PDF manuals so... IDK...

Awesome little mixer. I use it for model railroad audio patches and I can adjust volumes from my cab‘s position.

This little mixer works beautifully and excellent quality and construction

excellent!!

I love this gizmo. I can create a jam track, play it into the mixer from my iPhone, along with my lap steel guitar through an effects box (Zoom G1 X-Four), and headphones, and practice leads at max volume without driving the neighbors crazy. Being able to precisely balance the Zoom, jam track, and headphone levels is priceless.The key condition on all this is that everything you plug in needs to be at line level. That means if you want to add a mic to the mix, it needs to first go through a pre-amp. Luckily I have a dual-channel AudioBuddy direct input/mic pre-amp with XLR and phone jacks. With a DI/pre-amp you can do pretty much whatever you want.

UPDATE: I accidentally dropped something really heavy on it and broke my old mixer. Needless to say I was not happy about that. So I ordered a replacement. The old one had been really good to me, so I put in an order for the exact same thing. Unfortunately they seem to have redesigned this model. The new design seems better in theory -- the mono/stereo buttons are labeled correctly and now it has a extra grounding screw you can utilize. Unfortunately, the new design seems to be a lot worse in a lot of ways -- most particularly, it now is ultra-high noise instead of low. If I have more than one input plugged in -- or even just one input from some devices -- it produces a really annoying relatively high pitched noise (I'm guessing around 3KHz or so maybe, so not a ground loop.) The old one did not do this and I don't have any major sources of noise, so whatever it's picking up can't even be a very strong signal. Unfortunately, the noise is extremely annoying and of course defeats the purpose of a "ultra low-noise mixer."Unfortunately, due to COVID-19 concerns I tossed the packaging rather than saving it because I had just assumed this would be as reliable as its predecessor was, so I can't even RMA it. Hopefully they'll fix this with another revision soon, but at this point I'd just rather buy a different one entirely than to risk it.Old review:While my actual need for a mixer is fairly minimal, when I need one I really need one. Up to now I've mostly just been soldering multiple wires to resistors, which is a real PITA and not very adaptable. Needless to say, this is many times more effective. I do feel like the sound is very slightly different, but it's too subtle for me to exactly say how and, as others have said, it does seem to not add any significant noise to the line which is great.One nice plus for me is the power. While it's relatively easy to deal with relatively standard DC requirements like 9V or 12V, I have to say that supporting USB as a power source is really convenient. Not only is it generally easier to deal with the power supply, but if I need to run it on battery power there are probably more USB power banks everywhere these days than there are leaves on the ground in fall. It seems to have good filtering on the input since the noise level seems to be quite low, so all in all I'd say the USB power worked out well.One thing that did really annoy me though is that it's actually labeled wrong on the buttons to switch between TS and TRS (stereo and mono) modes. It specifically says right on the unit itself that down is stereo and up is mono. This is false. After I finished building cables and started testing it I spent probably about an hour testing with my multimeter and then even pulling the cables apart and redoing them assuming somehow something was wrong anyway despite the multimeter showing what it was supposed to. I don't even know why it finally eventually occurred to me to actually try pushing the button, but the moment I did I found out immediately the seeming short in the cable was actually an intentional short due to it being set to mono mode when pushed down as the label on the device shows. Really weird that someone messed that up, but now that I know it's simple enough just to leave the buttons the other way.BTW, it probably doesn't have to be particularly noted, but just to be clear, mono mode is not a downmix. Which is what most people using this for instruments/etc would expect. I actually got it to use in stereo only, so this doesn't particularly matter to me, but if anyone did expect to use this for downmixing along the way it won't work for that.