In the marketdifferent types of headphones are available with different specifications like Frequency Range, Frequency Response, Sound Pressure level, Total Harmonic Distortion, and Sensitivity. So how do you judge and select the best headphones? If you remember this specification in your later purchases, it would help you to buy the best headphones.

Let's differentiate between headphones and earphones. First We talk about headphones. Many types of headphones are available as: on the ear, over the ear. On the ear headphones means "up the ear". It is a small size and light weight headphone, Which does not cover the whole ear but it will not last for a long time. Next is over the ear headphones which cover the ear completely and it is best to use for a long time and in this headphone we can see open back and closed back. Open and closed back means if the ear are open or closed on the back side of the headphone. If we use closed back then no additional environmental noose can cause disturbance and the voice is very clearly heard but if we choose the open back then it is also good for natural voices.

Earphones are also transducers but with no headband. They can be placed on the pinna (earflap) or inside the ear canal. The former, known as "earbuds", are usually the open-air type, since small transducers can not generate low frequencies without acoustic ports. The latter, known as "in ear" earphones, use a foam or other soft material to hold the earphone in the ear canal, thus isolating it from ambient noise. Forming an acoustic seal makes the ear canal part of the earphone "system" and modifies its frequency response. The advantages are that less volume is required, and audio quality is typically better.

Specifications of Headphones

Frequency Range: If we talk about specification the first thing is frequency range. Frequency range is mentioned in all the headphones and earphones. The human capacity of listening is 20Hz-20KHz.And the headphones and earphones frequency is 12Hz-22Hz and the upper bound is18Khz-22KHz.

Frequency Response: Frequency response is basically described the in which Frequency how much you gain and what is the Response of frequency you see. Many times in the higher and lower frequency the output is not received louder then you see in chart.

Driver Size:In the Headphone driver size (length)directly proportional to the sound qualoty. That is,if we talk about big headphones the 40mm or higher(driver size) are great but if we talk about the small headphones the typical range is 8mm-12mm. But in small and high quality headphone you can see multiple drivers.

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