speakers and watts

[davlaf]

Hi there,

I am about to order all what I need to build the Wayne J's "Veritas" Three Way TMWW Towers from the project showcase of parts express website

I was wondering why do the addition of the woofers gives 140 watts RMS / 210 Watts max, the middle can handle 80 watts RMS / 115 max and the tweeter can handle only 30 watts RMS / 60 watts max?

Do I can't build these speakers if I have a 100 watts amplifier?

Thank you,
David Lafleur

 

[Sheep]

you can build them.

You just never want to exceed the maximum input power. Meaning, never put in more then 210Watts. But, that doesn't mean you can't have a 300watt per channel amp.

More watts, more headroom, but never pump in more then they can take.

SheepStar

 

[davlaf]

You just never want to exceed the maximum input power. Meaning, never put in more then 210Watts. But, that doesn't mean you can't have a 300watt per channel amp.

Thank you for your fast answer, but I don't understand something...

The problem is the tweeter. It has 60 watt max and my amplifier is 100 watt. The other speakers are ok because they are above 100 watt max but the tweeter is only 60 watt max...

 

[Sheep]

your not going to connect the tweeter to one channel are you?

The crossover divides the power between all the drivers in the enclosure. So you can put in 210 watts and will not have 100 go to the tweeter.

If you want the best possible explanation of this, PM WmAx, he knows everything, seriously.

SheepStar

 

[Buckeyefan 1]

The crossover doesn't divide the power, it divides what Hz goes to each driver. The music/movie content as well as the volume control and amp determine the power to the crossover.

The coil and capacitor in the crossover keep the tweeter from getting all the out of band frequencies. The Le from the coil has a higher resistance to high frequencies, and the cap doesnt like to pass lower frequencies. You can call PE or Madisound and they'll help mate a good crossover to your choice of drivers.

 

[mtrycrafts]

Thank you for your fast answer, but I don't understand something...

The problem is the tweeter. It has 60 watt max and my amplifier is 100 watt. The other speakers are ok because they are above 100 watt max but the tweeter is only 60 watt max...

Besides what Buckey said, music power in the tweeter band is not that much, that is why speaker makers design and build such seemingly low power tweeters.

 

[Ryan_Lilly]

there is very little high frequency energy in music, the tweeter will only see about 15% of the to total power. Look at this article by Rod Elliott, the graph in the power distribution section shows this relatinship between frequency and power.

http://sound.westhost.com/tweeters.htm#pwr-dist

Those speakers should be fine, using someones elses design makes things a lot easier and takes most of the risk out of a project.

Good Luck,
Ryan