DIY47 headphone amp problem, 47 headphone amp two op amp, one is very hot, the other is not very hot

No, it's to avoid the interaction between the two channels. There is nothing wrong with two op amps working at different voltages, but it is not recommended to do this, because the front and rear voltages are different, so it is troublesome to have two sets of different voltages. The NE5534N single op amp can replace the NE5532N, and the performance is better.

A small suggestion, if you use dual power supplies (dual power supplies are recommended) to make the positive voltage of NE5534N higher than the negative voltage, the sound quality will be better, the way is to string a diode at the negative voltage power supply end, 1N4007 is OK, so that when the positive is 15V, the negative is. I wish you success!

Check whether the circuit wires on the side of the heat are connected in series to cause heat.

That might be disconnected.

Do you want to use a car CD player with headphones to listen**? If so, you need to add a 12V power supply and change the power input, add a current limiting resistor to change the audio output (sound output) to protect the headphones, and finally add the headphone socket, if you don't have professional technology, it is difficult to succeed.

This driving force is enough to drive 250 euros of large headphones, and the thrust of the E3 and Lyman second rooms of Beyer Power is not much greater than this.

That is to say, when connecting the 32ohm load headphones, the output of two 150MW power, the thrust is quite large. In addition, there is an implicit message that it is suitable for pushing 32ohm headphones.

If your headphones can be replaced with a balance cable, you can use the balance cable, and of course the headphones with non-balance ports can also be used.

The so-called balanced interface is to change the conventional common ground wire design to two independent channels of left and right channel signals, which can significantly improve the thrust.

The headphone amplifier is something that only professional enthusiasts will match, and they are used to help push high-end headphones with high impedance.

After all, it's the icing on the cake.,And it's much better than putting it with you.,It's really better to put it with you than directly C4,Hifiman came to give it a lot of power.。

The streets are full of ordinary sound sources, and burners don't choose to bring their own treasures when they go out on the street, and the street is so loud that you can hear any good effect.

It still depends on what sound source you have, such as Marantz CD17, you can't do it without a headphone amplifier.

It still depends on what kind of headphones you have, and the headphones with a few hundred ohms impedance will have no sound if you don't put it on.

As long as you are a burner, you must have played or played more or less, but now more and more people are switching to C4, and there is no need to put it on the table if you don't have enough money.

But for ordinary ** enthusiasts who are not burners, the sound source and headphones will not be played, and there is no difference between them, how expensive.

If you are happy and do not affect others, there is no problem.

Count pretending, there are ready-made. Private is now taking the train, and there is a man wearing a Senhai HD650 in front of him, with an ear amplifier in his arms, walking around leisurely. It was as if he was the best in the whole soft-seat carriage.

If you can carry your clothes in your pockets and trouser pockets, you can count it as "pretending to be forced".

If you appreciate it yourself, why care about the eyes of others?