SPEAKER [WITHOUT Bose®, WITH CENTER DISPLAY]
SPEAKER [WITHOUT Bose®, WITH CENTER DISPLAY]
2016 – MX-5 – Body and Accessories
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
-
Not applicable