Hello dear memebrs please take a look at this quote:
""Q: Would you consider a design for a 1,000W amplifier?
A: No, I would never consider a 1kW amp. No loudspeaker can handle that much power, regardless of claims. Look at a 1000W electric heater - feel how hot it gets and how quickly. Note that the element is thick resistance wire on a ceramic former. The resistance wire glows red hot after only a few seconds.
Since only about 1% of power is converted to sound, the voicecoil has to do the same work as the electric heater. But look at a voicecoil - it is thin wire on a thin aluminium or Kapton former. At 1kW it may last a few minutes if you are lucky. At low frequencies, the voicecoil will leave the gap, the speaker will distort badly, and quickly fail. In some cases, the spider or surround can be torn, or the voicecoil can suffer impact damage from colliding with the rear pole-piece
Unfortunately, the advertisements and even data sheets lead one to believe that many drivers will take that kind of power. The vast majority will not. I have tested a (claimed) 500W driver that distorted (and would have quickly overheated) with only 100W input. It was a massive affair, having dual voicecoils, dual spiders, dual magnets and double the distortion.
Although it is useful to have headroom in an amp, it is far better to use smaller amps and an electronic crossover. This makes the requirement for 1kW amps simply go away for all domestic hi-fi systems. Having said all this, P117 has been published, but I hope no-one is silly enough to build it ""
Source:
sound.westhost.com
This is extracted from the mentioned website's FAQ section.this is one of the most knowledgeable sites I have ever seen about audio,amps,speaker...
As you can see it is clearly stating that it is not possible for a speaker driver to handle 1000w(RMS) power.so how do we have so many speakers with more than 1000w RMS power?
Are the companies lying to us?
Is it just a matter of more sensitive speaker paired with 1000w rms power amp,configured in a way that the driver never uses that 1000w because it will simply fail?(for example there is something similar about qsc k12 compression driver equipped with 500w RMS which obviously will never be used even for milliseconds.)I always wondered that even if a speaker wastes 250w heat,shouldn't it make my room warmer?where does the heat go really?now think about 1000w!man my PC gpu (gtx 970)needs a case with good fans plus it' own fan to waste a lot less heat.so how does the 1000w speaker waste that amount of heat without failing?
What is the truth about the 1000w (or more) speakers?