![]() Some phones allow for multiple headphones to be connected at the same time.Īnother option would be to use an active splitter I don't even know if such a thing exists, but it would require an additional battery/power source. One alternative you can explore is to use bluetooth headphones. Again, this possiblity is extremely remote: the chip is most probably protected from short circuits, so it is impossible to damage it. This can potentially overheat the chip, drain the battery faster, or even damage the chip. ![]() The amplifier inside is designed to drive a certain load, and you are demanding more. the dB per watt they can output.ĭamaging the phone is a very remote and unlikely scenario. Whether this is acceptable or not depends entirely on the amplifier in the phone, and on the "efficiency" of your headphones, i.e. The maximum volume will be lowered because the amplifier inside the phone needs to drive 2x headphones, so they will need to share the power. The splitter only parallels the headphones, there is nothing fancy happening inside of it. Same goes for my English, since it's not my primary language.ĭepending on how much money and how portable the system can be, the splitter can be a very good solution. I have relatively limited knowledge of electronics, one that's mostly theoretical so I would warmly welcome any corrections you make regarding stuff that I said in the question. I would very much appreciate if you were to provide me with a suitable circuit diagram. I would like to know are those 3.5mm signal splitters reliable and safe for both phone and headphones, and if not, I would appreciate if someone could point me to the right direction regarding picking a custom circuit and assembling it. I did find this circuit which seems like it could be what I need, but I'm not sure about how portable it is, considering it would probably need a separate power supply or something, since it works at 20-35V. I've been unable to find any that suit this criteria. For this reason I've been looking for some low-power circuit that i could power with a smaller battery pack, probably with an amplifier with two outputs or something. I'm worried this could affect maximum volume, or damage the earphones, maybe even my phone's audio output, as it would put two inputs in parallel, thus making the current larger. ![]() Anyway, while looking for a solution, the only thing I could really find is DIY videos of people making a cable like this 3.5mm jack signal splitter. Using a speaker could be an option buy my girlfriend wants it this way. I need a solution for listening to music from 2 headphones/earphones on a single mobile phone.
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