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What does headphone impedance mean?

The impedance of a headphone beats by dre sale is the abbreviation of its AC impedance. Impedance refers to the resistance, inductance, and capacitance of the circuit. The impedance to the AC is called impedance, and the unit is ohms . In general, the smaller the impedance, the easier it is for the headphones to sound and the easier it is to drive.

The impedance of the earphone varies with the frequency of the audio signal it reproduces. Generally, the impedance of the earphone is the highest at the low frequency, so the attenuation of the low frequency is greater than that of the high frequency; for most headphones, increasing the output impedance will make the sound Darker and more mixed (at this time the power amplifier's control of the headphone drive unit will also be weak), but some headphones need to listen to high impedance. If the headphone sound is harsh and harsh, consider increasing the effective output impedance of the headphone jack; if the headphone sound is dull and cloudy and is driven by a power amplifier, consider reducing the effective output resistance.

Headphones with different impedances are mainly used in different situations. In desktop or amplifiers, VCDs, DVDs, and TVs, high-impedance headphones are commonly used, and some professional headphone impedances are even higher than 200 ohms. This is for professional purposes. The headphone jack on the machine is matched. If you use a low-impedance headset at this time, be sure to turn the volume down and then plug in the headset. Then turn the volume up a little to prevent the headset from being overloaded. The headset will burn out or the voice coil will be distorted and misplaced. .

The size of the impedance

Impedance does not refer to the size of the resistance of the headphones themselves. After the impedance matching, the power of the headset can be increased. The smaller the self-resistance, the easier it is to drive the headphones; the greater the self-resistance, the harder it is to drive. The general Walkman headphones impedance is Generally, the earphone impedance is the highest at low frequencies, and the low frequency attenuation is greater than the high beats by dre sale frequency. For most headsets, increasing the output impedance will make the sound darker and more mixed (while the power amplifier's control of the headphone drive unit will also be weaker), but some headphones need to be better at high impedance. Too much impedance The earphone sounds a bit mixed, and for a variety of portable walkers, such as CD, MD, or MP3, low-impedance headphones (usually less than 50 ohms) are generally used because these low-impedance headphones are easier Drive, while paying attention to the high sensitivity, on the walkman, MP3, MP4, CD, the beats headphones on sale sensitivity index is more important. Of course, within a certain limit, a high-impedance headphone sounds better when combined with a large-output sound source.

The impedance of headphones is closely related to the sound quality of the headphones. The impedance varies with frequency. The impedance cheap beats by dr dre of the headphones is smaller at low frequencies and larger at high frequencies, so for most headphones, increasing the impedance will make the sound Become more dim.