In {TAIL ~ addition}, an offset in the displacement direction of the vibration system of the speaker unit is detected with a Hall element and fed back to {HEAD ~ a power amplifier} in order to correct the offset in the displacement direction of the vibration system of the speaker unit 
In { TAIL ~ addition } , an offset in the displacement direction of the vibration system of the speaker unit is detected with a Hall element and fed back to { HEAD ~ a power amplifier } in order to correct the offset in the displacement direction of the vibration system of the speaker unit
OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH