What Are High Fidelity Headphones
Dec 04, 2022| The main performances of the high fidelity earphones recommended in the IEC 581-10 document of the International Electrotechnical Commission are:
1. The frequency range is not less than 50Hz - 12500Hz, and the optimal frequency response of the dynamic earphone is about 5-45000Hz.
2. The allowable error of typical frequency response is plus or minus 3dB; The slope of frequency response curve shall not exceed 9dB per octave.
3. The difference between the average sound pressure levels of the left and right units in the same octave bandwidth within 250Hz-800Hz shall not exceed 2dB.
4. Within the range of 100Hz to 5000Hz, the harmonic distortion shall not exceed 1% when the sound pressure level is 94dB, and shall not exceed 3% when the sound pressure level is 100db.
The biggest advantage of earphones over speakers is in details. In fact, an excellent earphone should have good sound analysis, rich details and no audible distortion; Low frequency is powerful and clear, and can be effectively controlled; The whole frequency band should be smooth and flat, with low frequency but warm and high frequency but cold. For any pair of headphones, the smooth and natural connection between them is the most important.