what is a high fidelity headphones?

- Sep 11, 2015-

The main properties of the International Electrotechnical Commission Standard iec581-10 high fidelity HEADPHONE: sonorant frequency less than 50Hz to 12500Hz; typical frequency response allowable error of plus or minus 3dB; frequency response curve, the slope of no more than no octave 9dB in 250Hz-800Hz around inside unit within the same octave bandwidth average sound pressure level difference is less than 2dB, 100Hz-5000Hz range and sound pressure level 94db and harmonic distortion is less than 1% and 100dB, not more than 3%; headphone frequency response between the 2KHz-5KHz allow declined, to improve transparency and spatial sense.

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