Earphone device with impedance correction unit

摘要

Various aspects of this disclosure are directed to an earphone device comprising a speaker unit including at least one balanced armature transducer to convert an electrical signal into an acoustic signal. The electrical signal may define a frequency range comprising a first frequency and a second frequency. The earphone device may further comprise an impedance correction unit configured to receive the electrical signal and compliment an impedance of the speaker unit such that a sum of an impedance of the impedance correction unit and the impedance of the speaker unit at the first frequency is substantially similar to a sum of an impedance of the impedance correction unit and the impedance of the speaker unit at the second frequency.

主权项

1. An earphone device, comprising:
a crossover unit configured to convert an electrical signal into a first component comprising a first frequency range and a second component comprising the second frequency range; a first speaker unit corresponding to one of a left or right channel and including a first balanced armature transducer signal, wherein configured to be responsive to the electrical signal at the first frequency range and a second balanced armature transducer configured to be responsive to the electrical signal at the second frequency range; a second speaker unit corresponding to the other of the left or right channel and including a third balanced armature transducer configured to be responsive to the electrical signal at the first frequency range, and a fourth balanced armature transducer configured to be responsive to the electrical signal at the second frequency range; an impedance correction unit configured to:
receive the electrical signal, wherein the electrical signal defines a frequency range comprising a first frequency and a second frequency; andcompliment an impedance of the first speaker unit such that a sum of an impedance of the impedance correction unit and the impedance of the first speaker unit at the first frequency is substantially similar to a sum of an impedance of the impedance correction unit and the impedance of the first speaker unit at the second frequency; a plug that interfaces with an amplifier; a first wire corresponding to the left channel that couples the crossover unit to the to the plug; a second wire corresponding to the right channel that couples the crossover unit to the plug; a third wire and a fourth wire that couple the first speaker unit to the crossover unit; and a fifth wire and a sixth wire that couple the second speaker unit to the crossover unit; wherein the first and second wires are mechanically coupled to form a Y-junction of the wires, and wherein the crossover unit is positioned at or near the Y-junction of the wires.