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The cause of failure of horn

1. long time overload driving horn, the horn horn would overheat and burn out, because the coil temperature rise, make some structural part melting, broken or burned, under normal use coil temperature is 180 degrees Celsius, not under normal use as can be imagined!
2. mechanical fault, speaker driver overload make the paper disk moving beyond the scope and separation and coil, coil and coil or a separation tray or folding horn support ring is torn, the office a situation occurs, can make the horn failure. When the folding or supporting ring is torn, the coil will friction with them, because the tray component has to be properly in the center position of suspension, small rupture may start out feeling, but after a period of time, when the crack becomes large, the horn will follow bad.
3. horn may also be a combination of the above two ways, such as the power amplifier output suddenly a great moment of energy, this energy can be voice suddenly open, the horn will have a strong vibration, the coil from the magnetic gap, when it may mistake back eccentric cannot return to in situ. This will make the whole mechanical action is paper dribbling forward, deviating from the original position, the tray is not sound, but also continue to transmit energy coil horn, double coil left magnetic gap, because the magnetic gap is the best cooling coil, but the coil has left the magnetic gap, so continue to receive signals from the coil in the power amplifier, the coil will soon lead to burn heating coil. But now the situation is relatively rare, because the speaker is now long stroke design.

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2017/4/28 18:08:22