Maker hart JUST Mixer S Portable 3 Channels Stereo IN Mini Audio Mixer/2 Stereo Output/Battery/USB Power/3C Device

The sound management quality was excellent... simple to operate... and, all controls (gain for each of the three channels and the master volume control) function with great smoothness and linearity! Two quality connecting cables are included— one for power access, the other for audio interconnection. The unit operates on a pair of AAA batteries (included), or via the use of the enclosed USB power cable. Additionally there are two front panel audio output jacks one for headphones, the other for direct connection to an external amplifying audio device. A 3-position slide switch provides a power-off option, an internal battery power source option, or a USB external power feed. A very bright colorful (2 colors) led illuminates to show which power source is in operation. Also, the packaging is first class and the large printed instruction sheet is among the best I’ve ever seen! I use it for my amateur radio station multi-devices audio integration control. It works very well and it is totally free of any 60 Hz hum. I would recognize that the most common use for this mixer is to provide merged audio mixing for up to three devices (I.e. tablets, I-pods, radios, etc.).

First off to start, I was looking for a small temporary mixer between a phone and a computer or 2 computers into headphones. This product was just the one that I found that would fit my temporary needs. There is problems that I ran into but since it was the only minor issues that you can avoid I kept it and just went around the issues. Pros: -mix up to 3 devices with 2 outputs -headphone output -speaker stereo output -4 knobs to control 3 inputs and master output -USB powered so its really portable -smol c: Cons: -slight static noise -after 50% there is distortion if there is a lot of bass coming from one of the inputs -anything past 75% knob turn it sounds just straight up bad -instant noise reduction that is about 25% -this will not drive high end headphones.... -really heavy bass will get it distorted instantly Workarounds: -put all input devices on max volume -at most keep any of the 3 inputs at 50% -have the master knob put up all the way at 100% -add a DAC after the output for headphones -use a clean power source that is not connected to audio usb port that would be on a motherboard (USB 2/0 or 3.0) -have good cables for the inputs/outputs What I wish was better or had: -be able to have any audio go past 50% without distortion -provide another cable Overall I like the device, it gets me around my issue but the device isn't perfect. I will be keeping it and be using it at for now until I move and get a bigger mixer like the GoXlr, Behringer 502, 802 or 1204.

You shouldnt expect too much from a mixer this small. The levels are a bit sensitive but it works perfectly for what I use mine for. I have a cheap video projector that my wife bought me. I keep it on my nightstand and project my nightly television time onto the ceiling. I use a small Bluetooth speaker for the sound and it's amazing. The problem with the speaker I'm using is this: There is a built-in noise filter or compression in the aux input. When certain movies grow quiet the sound cuts out. It's very annoying. SO, I take this little MIXER and use it to boost the horribly low audio signal from my projector and now I have no low audio cut offs. Also it has USB C power OR battery. Problem solved. So far 5 stars. In fact, I want another one.

I wanted to use my 2.1 desktop speakers for sounds from the PC, Phoenix Duet speakerphone (handphone output) and an Echo dot, and be able to hear them at the same time. While there are other line mixers I could use, I didn't want to bother with 3.5mm to 1/4 inch adapters so I chose the Maker hart Just Mixers. Initially there was a hum but I isolated the source as coming from the Phoenix Duet (USB powered). I added a ground loop noise isolator between the Duet and the mixer, and the noise is gone. I can now set the various input at the appropriate level and leave it as is, and I can also hear the speakerphone ring when Skype calls come in, then switch to headphones quickly and dial down the speakers with the control pod without having to plug/unplug the headphones. While this device works very well for my needs, other reviews were correct that the output is pretty weak. Since I put it through a Pyle headphone amp I already have, it's not a problem for me but if you don't have any way to amplify the output you may find the volume too low.

This is exactly what is written on the tin: a pocket-size mixer with three 3.5 mm inputs and a 3.5mm line output and a 3.5mm headphone output. It runs on USB power, no power (as a passive mixer), or battery power. It's fine operated at low levels, but noisy when used at high levels. It's a good lower-attenuation mixer for the money, i.e., better than a passive mixer. But if you want _no_ attenuation from the mixer, or any amplification, you should consider something more robust. Pros: - Nice design and operation. Very simple, with controls that are accessible as one would want, but not too easily jostled. - Inputs and outputs are where you want them. - Headphone output is convenient. - LED light is surprisingly useful for adjusting levels in low light. Cons: - Noisy above half power. It adds a lot of low-level hum, even when powered independently. I had it attached to a pair of always-on amplified speakers, and the speakers would have a quiet-but-persistent buzz. - Noisy when powered by battery. As one might expect, but still part of the tradeoff with any portable battery-capable mixer like this. - Noisy when powered by USB attached to one of the audio inputs. Again, to be expected to some degree, but it's particularly noisy here. Overall a solid product for convenience of mixing multiple inputs in quieter applications. Too noisy for loud environments. For example, fine for mixing a computer output with a cell phone output to be listened to on headphones. But too noisy to mix a CD player output and TV audio output into a set of speakers for a big room.

First off, I have many years of experience in pro audio. I ran a DJ / mobile audio company for some time in my younger years so I have plenty of experience and exposure to audio devices and their use. I wasn't expecting much from this mixer, my use case is extremely simple. I have two computers on the same desk, and I wanted to use a single set of speakers for both computers, rather than having to switch back and forth. Very simple. I didn't want to invest in a small desktop studio mixer, so I thought I'd give this a try, but it was a complete failure even for this simple use. After wiring both computer line out to the mixer, and setting the gain to about 25-30% on all inputs and output, and connecting the USB power, I couldn't hear anything. I reconnected my speakers directly to the mac, and could clearly hear the music playing at normal volume. Mac volume was 100%, and spotify was 100% volume, speakers were at maybe 15% volume, which is comfortable level. Plugged back in to the mixer and again couldn't hear anything. I turned up the speakers and could finally hear music at a VERY low level. Again, double the original speaker volume from when the speaker was directly connected to the source. I was hesitant to increase gain on the mixer as I knew the quality would suffer, and I was right. As soon as I increased gain, audio quality tanked, and noise increased dramatically. Increasing input and output gain to what I would consider original input volume levels was unlistenable quality-wise. I gave up and returned the unit because it is worse than useless. Not only does it not work, it also LOWERS input volume to unusable levels, and when you increase gain to attempt to hear your source audio, the quality is so low it is unlistenable!

I really get frustrated with products that do NOT do what they're advertised to do. So yea, no frustration here! This little thing is exactly what the description says it is, and it does it simply and well. If I were to come up with something to complain about it would be that the individual volume controls are subtle, there's not a lot of range. I got this to be able to mix two computers audio when I game, so I can also stream videos on the other. I simply used two 3.5mm male-to-male cords to go from the front headphone jack to the input ports on this mixer, plugged in a set of headphones, and I was off and running - easy-peasy! I was surprised to see there was an additional output jack (didn't notice it in the description), and I just plugged in an old set of desktop speakers - now I have the ability to go without headphones during the day when I'm the only one in the home office, and switch to 'silent mode' with headphones when folks start coming home. Thanks for a solid product at a reasonable price point!

I use this small mixer daily for my instrument practice, so I can play against a song. It works fine. If you plug the USB into a power outlet or computer, you will likely get some noise, but it is nice and quiet if you use batteries or, connect the USB to a portable battery. I was using batteries most of the time, and switched to USB on portable battery a few months ago. Recently it was shutting down on USB after a minute or so, but still works on battery. I bought a new one and it works fine on USB, so the old unit is probably just hitting some issue on USB power circuits. The old unit lasted less than 24 months. Still, it's a good small inexpensive device that does its job, it just doesn't last forever.

L'ho acquistato per fare RSI (remote simultaneous interpreting) perché consigliato da una brava collega e l'ho usato per un po'. Non so perché, ma a un certo punto sentivo un brutto rumore di fondo. Non avendo tempo di approfondire, sono passata a un mixer più professionale. Lo tengo ancora perché è piccolo e molto leggero, sperando di risolvere magari un giorno il problema. Ma forse è proprio la leggerezza e scarsa solidità a renderlo meno affidabile.

Ich nutze es mit mehreren Bluetooth Transmittern um mehrere Geräte mit Ausgabe an einen Bluetooth Kopfhörer zu senden. Das klappt soweit gut, allerdings gibt es manchmal leichte Störgeräusche, liegt aber an den Adaptern. Bin zufrieden.

Ik heb hem in een hoekje van mijn (oude maar uitstekende) Yamaha klavinova staan waardoor ik een aantal extra bronnen door de speakers van de klavinova kan laten klinken: - muziek uit mijn ipad om mee mee te spelen - mijn elektrische Roland sax - geluid van de klavinova zelf via midi en een Hammond emulator in een iPhone of iPad Signaal/ruis verhouding lijkt goed in orde

Exactly what I needed to be able to use my work laptop, while listening to music from another source. No fumbling with a screen and an interface to mute the music: just turn down the volume. Sound distorsion at high volume levels though.

Works well enough on battery power but as soon as you plug it into a USB lead to power it, there is a very noticeable 60 buzz. Very disappointing considering it wasn't priced like a toy that it turned out to be.