SPEAKER [WITHOUT Bose®, WITH CENTER DISPLAY]
Purpose
Converts the audio signal from the tuner and amp unit (TAU) to sound.
Function
Full-range speakers, which can output wide-range sound from low to high frequency, have been adopted.
Specification
| Item |
Door speaker |
Driver-side headrest speaker |
Tweeter |
|
| Max. input |
(W) |
25 |
10 |
25 |
| Rated impedance |
(ohm) |
3.4 — 4.6 |
3.4 — 4.6 |
3.4 — 4.6 |
| Size |
(cm ) |
16.5 {6.5} |
5 |
3 |
Construction
Door speaker/driver-side headrest speaker
A cone-shaped dynamic speaker has been adopted for each speaker.
A weight reduction was achieved by adopting pulp for the cone material and a ferrite magnet.
Tweeter
A cone-shaped dynamic speaker has been adopted for each speaker.
A weight reduction was achieved by using polyetherimide for the cone material and adopting a strontium ferrite magnet.
Operation
The speaker sends the audio signal (current) from the audio unit to the voice coil.
When the audio signal (current) is sent to the voice coil, the coil becomes magnetized and a magnetic field occurs. Because the voice coil and the magnet pull and repel each other in the magnetic field, the voice coil vibrates.
Because the voice coil is wrapped around the voice coil bobbin, the voice coil bobbin vibrates when the voice coil vibrates.
When the voice coil bobbin vibrates, the cone (diaphragm) installed to the voice coil bobbin vibrates and generates sound.
Fail-safe
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Not applicable