posted
The power rating of a speaker is determined by how much heat it can dissipate. So if a speaker is rated at 100 watts RMS then it can run continuously with this much power without overheating. So comparing two subs for example the one that can handle more power can do so because its cooling system can dissipate more heat away from the voice coil.
Posts: 327 | From: Pleasanton & Sacramento Ca | Registered: Dec 2001
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posted
The melting point of copper is 250 degrees C. A coil has as many turns as neccessary to make the desired impedence (4 ohm, 2 ohm) Current moves throught this with the stated resistence and depending on how much current is passed things begin to get warm. Them point at which the coil actually opens is recorded. Then they take this number (in W) and sit and say "now we can not go over this because we will have a lot of warranty issues" Now they know that in order to even want a subwoofer you have to be an idiot who probably cannot read and write (damn stereotypes so they know that what ever they say we, as the end user idiot, will double that so they probably divide their "number" by like 3 to be safe. But heah GOD HATES A COWARD. Besides we don't double it, we quadruple it!!
quote:Originally posted by Audio Stress Test: time is also a factor, eg for transients a sub can handle much more power
Everything can handle more power if its only for small amounts of time, unless you reach the physical (not power but stretch and such) limitations of the driver.
ShadowStar
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Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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posted
Wire itself no matter how big has some resistence, even if it is not measureable( which is because your testing equipment is not sensitive enough. The longer the wire becomes the greater the resistence becomes. Now you can find out resistences of wire that are already determined by AWG standards ( like 16 ga has 8.33 ohms for every 100') but this is also at 25 degrees C
quote:Originally posted by Audio Stress Test: except when a sub is bottoming out, it isn't going to suddenly fry *just* because it is bottoming out[/QB]
However, the former might deform if the sub hits the back-plate.. Which will very quickly amount to driver destruction.
ShadowStar
-------------------- You can't build a reputation for what you're GOING to do.. But you can build one for TALKING about it!
It's all about knowledge, love and respect.
Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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