Headphone frequency range

Many manufacturers of headphones in the description indicate the frequency range. At the same time, the user expects that they will reproduce sound in the stated interval and the wider it is, the better.

What is the frequency range of headphones

The sound quality depends on the frequency range. The human ear can distinguish sounds from 20 Hz and up to 20,000 Hz. At the beginning of the interval are low-frequency sounds, and at the end - high-frequency. The main task of the headphones is to play it correctly.

The audio device should not make other sounds in the form of wheezing and hissing. Evaluate the ability of the device to reproduce high-quality sound can be on the amplitude-frequency characteristic (AFC). This indicator is displayed as a graph of the dependence of the volume on the frequency. The he is more direct, the more clearly reproduced sound.

A single parameter in no way characterizes the sound of headphones. Different device models cannot be compared with each other if the interval is specified without deviations. In the more expensive models of audio devices manufacturers indicate frequency response. For example, a value of 20 Hz-20 kHz + -5 dB means that there will not be any troughs or strong peaks throughout the interval.

Which option to choose

The optimal frequency range for headphones is in the range from 20 Hz to 20 kHz. However, many manufacturers specifically try to broaden this parameter. There are audio devices with an interval of 10 Hz-25 kHz. How to understand this, you ask? Of course, a person is not able to hear the whole range of sound. On the one hand, manufacturers want to attract customers in this way, and on the other hand, this means that the final dips of the amplitude-frequency response will begin no sooner than these distant borders.

NOTE. The broadening of this parameter is a marketing move.

The magnitude of the frequency range can not be the main criterion in the selection of headphones and other audio devices. A single parameter indicates only the interval, and not the linearity of the frequency response. According to the above values, you can not choose an audio device, you can only exclude poor quality. The nature of the sound is best determined manually using a specific composition.