MAGNETIC SYSTEMS
OF ELECTRODYNAMICAL LOUDSPEAKERS
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| Photo 1. Magnetic systems of electrodynamical
loudspeakers produced by MMT, Ltd. |
Photo 2. Magnetic systems of electrodynamical
loudspeakers produced by MMT, Ltd. |
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Type 1 |
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Type 2 |
| D1, mm |
48.98 |
D1, mm |
43.9 |
| D2, mm |
52.02 |
D2, mm |
45.5 |
| Gap / h gap |
1.52 / 5.5 |
Gap / h gap |
0.8 / 2.8 |
| B max, Gs |
12600 |
B max, Gs |
22000 |
| Flux, mWb |
1.05 |
Flux, mWb |
0.8 |
Magnetic systems of loudspeakers are represented by the two
following design solutions:
- disk magnet in a shell core: for signal
and loudspeaker devices of police, emergency and fire-fighting
vehicles
(Type 1);
- ring-shaped magnet and large extraneous
field: for powerful show-industry devices (Type 2).
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