Introduction of Good Hifi Earphones

Introduction of Good Hifi Earphones

Good Hifi earphones，the frequency response is not less than 50Hz to 12500Hz; the allowable error of the typical frequency response is ±3dB; the slope of the frequency response curve does not exceed 9dB per octave; the difference between the average sound pressure level of the left and right units in the same octave bandwidth within 250Hz-800Hz No more than 2dB; in the range of 100Hz-5000Hz, when the sound pressure level is 94dB, the harmonic distortion does not exceed 1%, and when 100db does not exceed 3%.

(1) Can choose open and not closed.
(2) Can choose high impedance (100Ω-300Ω) but not low impedance.
(3) Extensive research before purchasing, it is best to listen in person.
(4) Headphones are personal items, pay attention to hygiene, and choose second-hand headphones to consider.

It is best not to wear headphones while sleeping. It is absolutely impossible for ordinary people to stay still overnight. After a long time, the headphone cable is either wrapped around the neck or the two wires are twisted together like a twist. Some large headphones even have their shells crushed.