Impedance (Impedance)

Note the difference between the meaning of resistance in direct current (DC) in the world, the objects on the current role of obstruction is called resistance, but in the field of alternating current (AC) in addition to resistance will impede the current outside, capacitance and inductance will hinder current flow, this effect is called reactance, and our daily said impedance is the resistance and reactance on vectors and.

Sensitivity (Sensitivity)

SPL pointing headphone input power of 1 milliwatt headphones can be issued (decibels of sound pressure, the greater the larger the volume of sound pressure), so generally the higher the sensitivity, the smaller the impedance, the more likely headphones loud, more easy to drive.

Frequency Response (Frequency Response)

Corresponding to the sensitivity of the frequency is the frequency response, the image is drawn into the frequency response curve, the range of human hearing can reach about 20Hz-20000Hz, the current technology have reached mature headset this requirement.