FIFINE Ultra Low-Noise 4-Channel Line Mixer for Sub-Mixing,4 Stereo Channel Mini Audio Mixer with AC adapter.Ideal for Small Club or Bar. As Microphones,Guitars,Bass,Keyboards or Stage Sub Mixer-N5

I bought 2 of these little line mixers because they solved some difficult audio interface mixing issues. I use one between my PC and my USB mixer interface to route audio from a 2nd audio interface for OBS recordings instead of using Voicemeeter mixing software. If you have issues splitting the mic signal and your DAW or a guitar signal, this line meter can help you. It's tricky but it is easier than using Voicemeeter.This line mixer is also very quiet without hiss so it is worth its low cost definitely.

As the description says I am a drummer. This little thing is great. I can take the mix from front of house (minus me), any samples, band click-track, my electronics and then run them through this little thing to my in-ears. The mixer is powered so it will boost the volume over what the original device is delivering. I tested this with a direct line from my boss metronome to my in-ears vs going through this mixer. The sound out of the mixer was several times what the direct feed was. Same for the laptop, and Roland drum brain.I like that I can set the individual volumes as I go along. Other have said that the pots were noisy but I do not find that. Every so often I get a little fuzz when turning the knobs but that's it.I originally bought this just to use in the practice room but it is now in my bag when we gig. There is no eq (just line volume) so if you want to tweak the mix you will have to condition the signal through before this. I still use a small monitor behind me for feeling the bass.Overall I think this is a great buy for the casual musician who needs a basic mix in the ears while practicing/playing. Are there better systems out there, sure, but for $22 this thing is a steal.

I picked this up a while back to combine audio from a gaming console and laptop. It functions well, build quality is solid and it has plenty of headroom for volume. I used this unit for over a year before I noticed that the bass was attenuated. I noticed this after I purchased a decent set of headphones and was going direct into a DAC—and then when I switched back to the mixer the drop in bass was very obvious. I think for the price and functionality this is a good value , but I ended up switching to a different (and more expensive) solution that maintains a strong bass signal. If bass isn’t much of a factor for someone, this is an easy unit to recommend.

I have been thoroughly amazed by the quality of this mixer.This mixer takes 4 sources and combines them into one. But it doesnt just combine them, it runs each source through its own mini amp. This allows for good volume control of the sources, along with preventing any sort of feedback or noise traveling back up the wrong way. It keeps each source completely separate.This separation keeps the noise incredibly low. On top of that, each little mini amp is incredibly clean. In most situations, I might as well be running my DACs straight to my proper headphone amp or speakers.If you have any trouble with static or noise, check the wires you used. Any sort of noise introduced from a bad wire or adapter will be very audible. With one cable, I could hear when I moved my mouse or dragged an element in a work space. I couldnt tell you how the wire was picking it up, but swapping it and the 1/4inch adapter for that input fixed the issue. If you have noise, its likely not because of the mixer.In the end, I love this mixer more than any regular receiver. No input switching, just listen. I originally got this so I could listen to my records without having to stop watching streams or working on my computer. I didnt want to have to get a separate sound system just for the record player. I also didnt want to have to switch between the 2 because i needed the audio from my computer as well. Combining the signals with a regular splitter was a big no no. Any time the record player wasnt running, it would distort the combined signal. Now i can listen to records, play/work on my computer, with an additional source for my robot voice assistant to also crank out when i ask it to. Just for me, its simple and easy.Im sure that any Pro user, actually using this mixer for a professional, more intended purpose, will find this little mixer to be absolutely perfect for most applications.fifine have really proven themselves to be an amazing company that cares about audio.

Great value and performer. Potentiometers are smooth and feel reasonably solid. Nice compact metal case. No real perceivable noise, though I didn't hook up an oscilloscope to be sure. Just know that you will be connecting up to five devices (4 in, 1 out), and so there is a big potential for ground loops. I was disappointed at first when after setting it all up, the noise level was far too high. But I installed a ground-loop isolator between this device and the output of one of my noisier devices (see other review), and the problem was immediately solved. My only wish would for it to be a little more portable - as a passive device (no power required) or one that can be powered my a now-common USB battery pack.

It does what I need it to do, but there is a noticeable hiss through the unit, and a slight drop in bass frequencies. It is fine for daily use, but avoid for critical listening or sources with a lot of quiet passages.

According to Mandolin Secrets (Magnus) I need a $700 mixer to blend my K&K mini piezo pickup with my Myers clamp on microphone. I took a leap of faith and bought this device, crossed my fingers, and just plugged them both in. It works like a dream, fits neatly on my pedal board, and makes a clear strong signal.My only complaint is that the12V socket on my Solutek battery is NOT strong enough to power it. Fifine does not publish the power requirement anywhere. All I know is that they support a 120VAC transformer at 12V and 2A. That's all true, so no points deducted. However I wish I was not stuck in the position of having to get a second 12V battery in the 2A range. I guess I've saved about $600 so far, so I'll deal with it.