The impedance of a headphone refers to a parameter of its resistance. The higher the impedance, the higher the voltage required, and the louder the sound produced at the same level of electricity, but it also consumes more electricity. The common impedance of headphones ranges from 8 Ω to 300 Ω, while headphones with a impedance of 300 Ω are commonly referred to as high impedance headphones.
Due to the need for higher voltage to drive high impedance headphones, specialized ear amplifiers are usually required to achieve optimal sound quality performance. In addition, there are also some differences in sound quality between high impedance headphones and low impedance headphones. The sound performance of high impedance headphones is relatively more delicate and comfortable, and the low-frequency performance is more abundant, but it requires more voltage to achieve the best effect.
When choosing headphones, the size of impedance is also a factor to consider. Generally speaking, headphones with an impedance of less than 16 Ω are suitable for portable audio devices such as mobile phones, MP3 players, etc., while high impedance headphones with an impedance of 300 Ω are more suitable for professional audio applications such as recording devices, ear amplifiers, etc. Of course, when using low impedance headphones, earbuds can also be used to enhance sound quality, while when using high impedance headphones, it is even more necessary to match appropriate earbuds to achieve the best results.
