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 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.

I wanted a replacement for the crap DI box that came with the meinl cocktail cajon kit, and this is INFINITELY better than the plastic crap that the meinl kit comes with. It's a sturdy metal box, it's extremely intuitive for where to plug inputs vs where to plug in the output, and it's super easy to use straight out of the box. There's no power on/off - plugging in the power will act as "on", and unplugging it acts as "off"For someone who does not know what I'm talking about, and just as an all around review: I'll say that I'm plugging in electronic drums that have their own independent inputs and volume knobs to this DI box. I'm getting the best sound output by turning all the volumes to max on this box, and then using the individual volume controls on the drums and amp. I would guess that this might be the best way to get optimized volume for other instruments - turn the volume to max on this box, and then control the volume as needed on the individual instruments and amp.Very pleased overall with the ease of usage straight out of the box. Very happy that this works on my drum kit

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 bought this 4-Channel Line Mixer, to mix a dry signal and the processed signal from an Acoustikar Acoustic Guitar Simulator Pedal. The Acoustikar pedal produced too strong of an effect. This little mixer allowed me to dial in the desirable amount of effect perfectly. Its size and quality are perfect for my needs since this is part of my pedal board setup. The mixer is quiet, and I have not heard any noise while adjusting the levels, perhaps they address that issue in the last few years.The only negative is that it runs off of 12 volts instead of 9 volts like the rest of my other petals. This requires me to use the supplied 12 volt power supply along with the 9 volt Power supply I use with my other petals.On the whole, this mixer does exactly what it's advertised to do, At an extremely affordable price.