How long the speaker life is, this is everyone's concern. Some people call the voice coil the heart of the speaker. Damage to the voice coil will cause the speaker to work.
The voice coil is damaged by thermal damage and mechanical damage. To prevent thermal damage of the voice coil, one is to increase the heat resistance of the voice coil; the other is to improve the heat dissipation condition of the voice coil, mainly the heat dissipation condition of the magnetic circuit. For high-power, large-caliber speakers, heat dissipation is critical.
Micro-speakers (including waterproof speakers, vibrating horns, etc.) generally use a skeleton-free voice coil, the power is generally within 0.8-1W, working within this range, the life of the speaker can be guaranteed.
Iron shell Mylar speakers, generally have a skeleton voice coil, the power is generally within 1.5-2W, working in this range, the life of the speaker can be guaranteed.
The power of the multimedia speaker can generally reach 3-5W.
