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Author	Topic:   Speaker Damage from Sines
dickow Member	posted 10 November 2000 19:51             When I was a student my instructors warned to avoid pumping a speaker system with high amplitude, low freq (especially) sinusoidal waves. They claimed that the speakers could be forced into behaving such that they favor a single mode of vibration, and you could wreck a speaker's frequency response characteristics this way. Is there really anything to this notion? Should I be careful when auditioning some of those lovely sine waves while sound designing? Bob IP: Logged
kelvin Member	posted 22 November 2000 20:46             Hi Bob, Well actually square or any other pulse wave is theoretically harder on a speaker. That's where the idea of it being better to have an amp with more power than not enough power to push a set of speakers came from. If you do not have enough power you push the amp to hard and it starts to distort and as we all no that means the sound gets clipped causing it to look more like a pulse wave. And I have seen many speakers fried that way. A sine wave well move a speaker in and out much smoother. You can see that if you don't have a grille and more so if it is a sub woofer which have the ability to extend excursions. The point is don't push them to hard. And that can be easy to do at low freq..especially with small monitor speakers that don't reproduce bass well. Then most people have a tendency to over compensate and drive too much lows into them. Hope that helps, Kelvin IP: Logged

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