Thanks for the attack on me again!
Now with using multiple drivers you get in to phasing problems. Using more drivers is a better way to disperse the heat .
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Can bass waves actually hurt you?
- Thread starter Damani311
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Thanks for the attack on me again!
Now with using multiple drivers you get in to phasing problems. Using more drivers is a better way to disperse the heat .
Depends on the centre to centre spacing of the drivers and the frequency in question. Not an issue for adjacent LF drivers, at LF.
billfitzmaurice
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Only when the distance between drivers is 1/4 wavelength or more within the driver passband.
What's the matter, spell check still down? Try clicking that 'rec' icon on the upper right.
As for proving you wrong, the laws of acoustics aren't a matter for debate. That's why they're called laws.
What math? You've given measurements. Do an analysis on the power required for the system and the efficiencies of the drivers. Basic Thiele Small and HS math. You might make a point.
This is all well understood since Olson, and it's done every single day in hundreds of sites in large PA systems.
bongomania
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- Dec 18, 2000
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That wasn't an attack. He simply said you probably weren't familiar with phone booths/boxes, if I'm not mistaken.
Between your comprehension skills and your texting-stylee punctuation and spelling, paragraphination and so forth, and inability to communicate at the level of the people you are, uh, debating, you just sound like a guy who threw a whole bunch of money at filling out a vehicle with a certain cunning to make a lot of noise. But when talking about it you don't seem to exhibit much understanding of basic audio concepts so is it any wonder that you are not recieved with open arms?
This isn't a bunch of phans who are going to think any guy that made a car burp loudly is some kind of a genius.
There's been some other interesting posts in the thread, so how about the car audio back-and-forths either goes to a higher level or gets shelved entirely?
Wow, those numbers are all over the place, from 0.3% to 7%. I didn't know there were such wild efficiency variations from model to model.
Here's a stupid question: Why are some speakers designed to have such super a low efficiency? Can you improve some other desirable parameter at the expense of efficiency?
And I apologize if I'm interfering with the regularly scheduled flame fest.
billfitzmaurice
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He's as likely to know who Olson was as the man on the moon. Next he'll be wanting to know what Superman's sidekick has to do with speakers.
A suggestion: if the mods don't close down this piffel let's the rest of us do so. I already regret the loss of the fifteen minutes of my life that I'll never get back, wasted responding to this loon.
- Dec 18, 2000
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- greenboy designs: fEARful, bassic, dually, crazy88 etc
It's tougher to convert low frequency signals to acoustic energy in air, thus much of the differences in efficiency.
It's another one of those No Free Lunch things that you so often see ; }
Apparently subsonics can cause discomfort at least. I remember reading about a system designer who was setting up a sound system and unwittingly was pumping 16 Hertz signal through the subs at pretty high wattage. They couldn't hear it, but after about an hour both he and his assistant vomited. Also, an old Guitar Player article mentioned that French police were experimenting with subsonics for riot control.
here ya go!
ad still still wating for bill to blow his hot air in the mic in a car and gain that 10db!
billfitzmaurice
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Bandwidth and efficiency are a trade off. From a box of equal volume you can go with a wider bandwidth or higher efficiency, but not both. In a nutshell pro-sound drivers go loud but not low, hi-fi drivers low but not loud.Here's a stupid question: Why are some speakers designed to have such super a low efficiency?
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