Douk Audio Mini Stereo 4 Channel Line Mixer Headphone Monitoring Club Live Studio Recording

At the time of this review I've only been testing it for half an hour or so, but theoretically it does exactly what it should. For clarity this review is for the MX3 2-channel variant because I only needed to combine 2 channels.Using it to combine audio streams from the headphone port on a PC, and the aux out from my 32in monitor which is being fed by my HDMI matrix full of consoles. Role was previously filled by a cable that did something similar, but didn't have the dedicated volume controls or volume amp. In my use-case I have the headphones running through the back port to reduce cable clutter, I don't believe you can have BOTH the front and rear headphone ports at the same time, and if I needed 2 sets of headphones I imagine I could just use a splitter down the line. I'll update my review if something changes of course.Things to note; In my initial testing there was some garbled audio, but that can probably be attributed to the old "twist the cable until it cooperates" scenario. I have a limited number of M to M cables, so I can't definitively say the ports on the device aren't a little weird, but once I got all the cables properly routed for longer-term use it stopped acting up. I also have mine plugged into an old iPhone power brick on a power strip on a different wall than all my other devices to try and prevent a ground loop, so far it seems to be working fine.Volume control is smooth, no garble or static when adjusting the dials. Easily able to adjust game and PC volume on the fly, as well as the overall maximum volume independent of my headphones or PC volume. I suggest turning everything down to mid before you give it a listen, because this thing can get LOUD with Youtube/PC/Headphones all being at/near 100%, even with everything set to 75% it's plenty loud enough with room to bump it up if you really needed to. Old cable solution definitely didn't get as loud so this is a definite improvement. There's still some background hum, but if I turn my headset down and everything else up there's no issue.TL:DR it works exactly as advertised as of Day 1. Things get loud, and you can easily decide which input gets to be louder which is the whole point. I'll make an edit if it explodes after the review.

I wanted to listen to my own music while playing Gran Turismo 7 on the PS5 while using the PS5 3D audio headphones.I have a 3.5mm audio cable going from the controller to input 1 on the mixer.I have a 3.5mm audio cable going from my phone to input 4 on the mixer.I have a 3.5mm audio cable going from the mixer headphone monitor jack to the PS5 headphones.I have the mixer model with the additional USB power (important for this application).I turned off the music in the game and turned on my streaming music from my phone. It mixes right into the game sounds perfectly.The mixer is made of plastic but does not feel cheap. The sound has a little interference if my phone is too close to the mixer but that is easy to mitigate.If you don't mind 3 aux cables and 1 power cable around you while you play, this is a perfect device to listen to your own soundtrack while playing PS5 with the PS 3D headphones.

Necesitaba mezclar un instrumento midi con el sonido de la compu. Y esto cumple el objetivo. Es pequeño y a buen precio

I have 4 computers in my home office. I feed all of them through this mixer, and then from the mixer to the sound system. It works great, except when I use my headset, which is not amplified.I honestly didn't think a little thing like this would do a good job, but this dinky little 4-stereo-channel mixer kicks serious ass. My only complaint, and it is not really the mixer's fault, is there is a noticeable drop in volume. This is a passive mixer - it has no amplifier, so I am not surprised. There is no background noise, no hissing, no popping.Because of the signal drop when I use my headset, I purchased this tiny amplifier for $20:"eSynic Portable Headphone Amplifier Rechargeable Headphone Amp 3.5mm Audio HiFi Headphone Amplifier with Two-Stage Gain Switch Compatible with MP3 MP4 iPhones iPod Digital Players Computers with 1.2m USB Cable"Search for it on amazon.I plugged the output of the mixer into the input of the amplifier, and now I have an amplified mixer that fits in the palm of my hand and sounds like professional equipment.Happy customer :)

This is an excellent little mixer, I'm very happy with it. There is the big caveat mentioned in other reviews - the audio level output (a.k.a. volume) is quite low. This is a passive mixer, it does not and cannot boost the signal of your sound sources. If you are plugging this into speakers with their own power source (such as a battery powered speaker), you should be able to boost the signal enough for it to be usable. Likewise for plugging into an audio interface to record into a DAW. However, if you are plugging into passive speakers (such as the studio headphones in my photo), the volume will be very low. Everything is still audible, and at what I might consider to be a 'practice' volume, but you will be disappointed if you are trying to rock the house. There are two solutions to this - either the resistor mod explained in other comments, or you can add an amp to the output to boost the signal (typically this is called a 'headphone amp' and they can be expensive).With that out of the way, I love everything else about this mixer! The knobs feel good, with firm and smooth action, they aren't scratchy at all, and I've had no issue with using them to live mix my instruments. Audio quality sounds great to me. The mixer sits solidly enough on a table, and the included rubber feet help. Plenty of space between the 3.5mm ports to accommodate fatter plugs. The usable range of the knobs isn't huge, generally 12'o'clock to 5'o'clock (50% - 100%), at least for my various battery powered synths. That's plenty for my needs.If you plan to carry this around in a backpack or gig bag, I would recommend that you either build a small enclosure for it or at least wrap some tape around the sides to keep dust out. Or carry it in the small cardboard box it comes in. Dust and other stuff could mess with the circuitry and degrade the audio quality over time. In my project this will live inside a larger metal box, so I'm not worried about it. I also like that the bottom panel can be easily removed, so you could mount this onto a pedal board, synth face plate, or something else. I plan to use Velcro at first, then maybe something more permanent later.If you are searching for a mini-mixer that won't break the bank, this is it. Don't expect this little passive mixer to move mountains, you'll love it.