2 Way Audio mixer 3.5mm Un-powered mixer, 2 to 1 Stereo aux 3.5mm line levels control Box mini passive mixer X21

Works great thanks

Great little audio mixer. Able to control audio from PC and Mini disc player into audio setup.

Works exactly as described. I used this to combine a drum trigger module with my iPhone and it works perfectly well. However, the attenuation of the signal is very, very high and therefore too quiet to use with earphones or headphones. Rather than spend additional money an a headphone amp, I decided to return this and buy a battery powered mixer which does exactly the same thing, albeit for twice the price; but still significantly cheaper than buying a headphone amp in addition to this.

It significantly lowers the volume even with the max volume. For some audio and devices it is simply not audible. But most mp3 and other devices works okay with max volume.

It only works with the ground loop isolator plugged into the output and it weakens the audio signals but apart from that i can not fault it

The unit arrived and operates as described. Love the simplistic look and controls. My application: two computer audio to one monitor speaker. For customers considering this mixer: This is a passive line level analog bidirectional mixer/splitter. There is no amp. Any low sound levels when the dials are max need to be adjusted at the source or your equipment needing a preamp (ie:microphone). I did experience hum and static that was quickly corrected with a ground loop isolator. This was acknowledged in the product description. There is always a possibility of interference of an analogue signal on any mixer and thus not reflective on my rating. I have not tried the one source input to two outputs but is confident it too would work as described. Great value, even having to buy a $15 dollar ground loop isolator. I would buy again.

Sto imparando il pianoforte su una tastiera digitale, e ho necessità di usare le cuffie perché mi cimento di notte. Siccome seguo un corso video scaricato da YouTube, ho necessità di suonare contemporaneamente al maestro, per verificare la corretta scelta delle note e soprattutto la correttezza e regolarità del tempo. Avevo quindi necessità di portare in cuffia non solo il suono della tastiera ma anche quello del maestro. Questo mixer mi va benissimo: sia l'uscita audio del tablet col video sia quello della tastiera sono sufficientemente potenti da pilotare, una volta mixati. le mie cuffie monitor professionali Sony MDR-7560. Il mixer è passivo, cioè non ha amplificazione, anzi ha alcune resistenze (e forse condensatori, non l'ho aperto) per cui per mixare segnali di basso livello, come quelli provenienti da due microfoni, potrebbe non andare bene anche se devo apertamente dire che non ho provato. Confermo che il mixer è stereo, una cosa che mi pare non risulti dalla descrizione. Nel mio esemplare la regolazione del volume è perfettamente separata per i due canali, a differenza da quanto riportato da altri utenti: probabilmente il circuito è stato modificato dopo quelle recensioni. Perché metto 4 stelle e non 5? Per il prezzo! Un mixer passivo è di una straordinaria banalità circuitale, di costo veramente infimo. Però la "carrozzeria" è davvero deliziosa, in alluminio satinato, e quindi 15 euro li avrei pagati volentieri. La differenza tra 15 e quanto pagato secondo me vale una stella.

Neat and functional no noncence little mixer. Some issues with the delivery but the dealer was very service minded and solved the problem quickly. Top notch!

Weak headphones require an amplifier, bit apart from that works well

This was the only small, portable device like this that I could find so I bought it to combine the output from my iPad and my laptop so I can be viewing instructional videos on the iPad while doing the work they're talking about on my computer and can work right next to someone and they don't hear a thing. BUT (and it's a huge BUT) the sound is greatly diminished because it's a passive mixer (i.e. it doesn't have any power). The way the wiring has to be done to prevent the signal from one device from feeding into the other device requires resisters and capacitors which all contribute to reducing the volume. I solved that problem by purchasing a very small portable headphone amplifier with rechargeable batteries, the NeoTeck Headphone Amplifier. I take the combined output from this mixer and run it into the headphone amplifier and plug my earbuds into the headphone amplifier's output and I get great volume. The documentation for this headphone mixer does very clearly state that the signal is "attenuated" -- many people won't know that means "weakened" -- why they couldn't just say the output is very quiet is beyond me. But as they say, forewarned is forearmed. I am giving this 5 starts because it is very small, very convenient to move around and it does the job with a clean output signal that combines both inputs. And it has a level control for each input so that I can balance them to get the sound I want before it makes it to the headphone amp.