The impedance and sensitivity of wired headphones are two important technical parameters that have a direct impact on the sound performance and user experience of headphones.
1. The basic concept of impedance
Impedance is an important parameter of headphones, which represents the resistance of headphones to electric current. The unit of impedance is ohm (Ω). Generally speaking, the lower the impedance value, the easier the headphones are to drive and the less power required.
2. Common range of wired headphones impedance
The impedance of wired headphones is usually between 16Ω and 600Ω. Among them, low-impedance headphones (such as 16Ω, 32Ω) are easier to be driven by mobile phones, portable players and other devices, while high-impedance headphones (such as 250Ω, 600Ω) require more powerful power output to achieve the best effect.
3. The basic concept of sensitivity
Sensitivity refers to the ability of headphones to convert electrical signals into sound signals under specific conditions. The higher the sensitivity, the louder the sound produced by the headphones at the same input power.
4. Common range of wired headphones sensitivity
The sensitivity of wired headphones is usually between 80dB and 120dB. Headphones with high sensitivity can produce clear sound at a lower volume, while headphones with low sensitivity require a higher volume to achieve the same effect.
5. The relationship between impedance and sensitivity
Impedance and sensitivity are interrelated. At the same input power, headphones with lower impedance are easier to drive, so their sensitivity is usually higher. However, this does not mean that the lower the impedance, the better, because too low impedance may cause sound distortion or deterioration in sound quality.
6. The impact of impedance and sensitivity on sound performance
Impedance and sensitivity together determine the sound performance of headphones. The right combination of impedance and sensitivity can make the headphones present clear and full sound on different devices.
7. Recommendations for choosing wired headphones
When choosing wired headphones, you should choose the right impedance and sensitivity according to your usage needs and device power. If the device power is small, it is recommended to choose headphones with low impedance and high sensitivity; if the device power is large, you can choose headphones with higher impedance for better sound quality performance.
