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Northeast Loudspeaker GTG 'HT Heavyweights' January 18th - Page 10

post #271 of 1057
Quote:
Originally Posted by Reddig View Post

Wonder what the loudest natural accuring sound ever recorded was and how loud? Think I had heard it was a volcano erruption or something.

Tunguska Meteor (Russia, June 1908) measured with a Rat Shack SLP Meter .smile.gif

Well, at an estimated 300-315 DB the RS meter was a little over matched ...
post #272 of 1057
Quote:
Originally Posted by Sibuna View Post

you would be correct. they can push 250 decibles when they go

Krakatoa was heard by 1/3rd the planet when it blew in 1883

Nice man. Ya I had just watched a show on Krakatoa. Man would love to have heard that roar! But from a safe distance lol.
post #273 of 1057
Quote:
Originally Posted by RMK! View Post

Tunguska Meteor (Russia, June 1908) measured with a Rat Shack SLP Meter .smile.gif

Well, at an estimated 300-315 DB the RS meter was a little over matched ...
Lmao!!
post #274 of 1057
Quote:
Originally Posted by Bill Fitzmaurice View Post

Rockets. Volcano eruptions are louder, but no one close enough to one to take an SPL reading of it lived to tell the tale, so we're not sure how loud they may get. It's rumored that Krakatoa in 1883 was heard 3000 miles away.

Cool very interesting Bill!
post #275 of 1057
Quote:
Originally Posted by RMK! View Post

Tunguska Meteor (Russia, June 1908) measured with a Rat Shack SLP Meter .smile.gif

Well, at an estimated 300-315 DB the RS meter was a little over matched ...

What most people don't realize is the sound associated with Tunguska meteor was actually Jeff testing the first JTR prototype OS. After that day he backed off the 24 inch driver and 10000 watt amp in the prototype and decide to pursue a design that was legal in all 50 states ( and Russia...once the 50 year ban expired).
post #276 of 1057
Quote:
Originally Posted by Frohlich View Post

What most people don't realize is the sound associated with Tunguska meteor was actually Jeff testing the first JTR prototype OS. After that day he backed off the 24 inch driver and 10000 watt amp in the prototype and decide to pursue a design that was legal in all 50 states.

Lmao man you guys always crack me up!
post #277 of 1057
Quote:
Originally Posted by Bill Fitzmaurice View Post


Rockets. Volcano eruptions are louder, but no one close enough to one to take an SPL reading of it lived to tell the tale, so we're not sure how loud they may get. It's rumored that Krakatoa in 1883 was heard 3000 miles away.

 

 

Quote:
Originally Posted by Sibuna View Post


you would be correct. they can push 250 decibles when they go

Krakatoa was heard by 1/3rd the planet when it blew in 1883

 

Krakatoa's blast wave circled the globe seven times. At ~ 25,000 miles in circumference that's basically pressurized air traveling a distance of 175,000 miles, or roughly 70% of the distance from the earth to the moon. In fact, estimates suggest that anyone standing within 10 miles would have been rendered deaf, assuming of course that we could test their hearing because they hadn't been obliterated by pyroclastic flow, tsunami, sizable explosive events, etc. 

 

Hearing loss subsequent to loud noises tends to occur in the realm of 180 db and results secondary to over stimulation of cochlear stereocilia leading to reactive oxygen species accumulation and subsequent cell death. This implies, of course, that consumption of copious antioxidants could potentially allow increased exposure time to subthreshold volumes, but I still need to investigate the antioxidant properties of beer before making a formal recommendation regarding the protective effects of Guinness during prolonged exposure to MK theater...

 

Taken in total this implies that the eruption resulted in 180 dB at a distance of ten miles, which back calculates to .... lets see here, 6 dB for each distance doubled .... carry the two .... OK, apparently I've consumed too much Laphroaig tonight. Could one of the engineers tell us what kind of 1 m load we're talking about here?

post #278 of 1057
Now think about how the ancients would have regarded the eruption of Thera which happened in the middle of the Mediterranean over 3,500 years ago and was estimated to be four to five times as powerful as the Krakatoan eruption.

By the way, if my math is right (it probably isn't) 180 dB at 10 miles away would be 264 dB at 1 m.
post #279 of 1057
At what SPL level does your brain matter start to do this?

post #280 of 1057
Quote:
Originally Posted by Archaea View Post

At what SPL level does your brain matter start to do this?

At the SPL of my own snoring the way my short-term memory is going...
post #281 of 1057
Quote:
Originally Posted by shadyJ View Post

By the way, if my math is right (it probably isn't) 180 dB at 10 miles away would be 264 dB at 1 m.

 

OK, so only a skosh louder than Gorilla's last basement sub contest ... :cool:

post #282 of 1057
Quote:
Originally Posted by Archaea View Post

At what SPL level does your brain matter start to do this?


Lol nice. I had a 155 db Toyota Tacoma back in 2000 and I'd make water puddles dance like that when I'd pull up to stoplights. At Sonic I made a rafter fall down and at a Kwick Shop I knocked down a security camera. List goes on. I broke a lot of stuff with it. I was a dick I use to cruise around with ear plugs blasting Pantera and causing shannanigans like this.
post #283 of 1057
Quote:
Originally Posted by Reddig View Post

Lol nice. I had a 155 db Toyota Tacoma back in 2000 and I'd make water puddles dance like that when I'd pull up to stoplights. At Sonic I made a rafter fall down and at a Kwick Shop I knocked down a security camera. List goes on. I broke a lot of stuff with it. I was a dick I use to cruise around with ear plugs blasting Pantera and causing shannanigans like this.

Parking Lot Pimpin!
post #284 of 1057
Quote:
Originally Posted by popalock View Post

Parking Lot Pimpin!

Lol you know it!!
post #285 of 1057
Quote:
Originally Posted by shadyJ View Post

Now think about how the ancients would have regarded the eruption of Thera which happened in the middle of the Mediterranean over 3,500 years ago and was estimated to be four to five times as powerful as the Krakatoan eruption.

By the way, if my math is right (it probably isn't) 180 dB at 10 miles away would be 264 dB at 1 m.
Exactly. That was the big one of the day. As a comparsion, our own Mt. St. Helen was equal to 30,000 Hiroshima A bombs.
Not to get of track but here is a nice Wiki on powerful volcanoes
http://en.wikipedia.org/wiki/Volcanic_Explosivity_Index

Go to "Classifications"
You can see that Thera is a class 7 out of 8. St. Helens and Vesuvis are labled as 5's. Pretty devastating stuff.
post #286 of 1057
Quote:
Originally Posted by MIkeDuke View Post


Exactly. That was the big one of the day. As a comparsion, our own Mt. St. Helen was equal to 30,000 Hiroshima A bombs.
Not to get of track but here is a nice Wiki on powerful volcanoes
http://en.wikipedia.org/wiki/Volcanic_Explosivity_Index

Go to "Classifications"
You can see that Thera is a class 7 out of 8. St. Helens and Vesuvis are labled as 5's. Pretty devastating stuff.

 

This is absurdly off topic, and should solidify my status as not on a complete super geek but also a total loser, but since we're on the topic of big booms I thought I'd point out the largest explosion ever observed . GRB 080916C was a gamma ray burst that occurred 12.2 billion light years away, ran for 23 seconds, and during that time unleashed the energy equivalent of one trillion 50 megaton nuclear bombs going off every second for 110 billion years, or about 7,000 times the entire energy equivalent of our sun over its expected lifetime ... actually I'm not even remotely intelligent enough to fully comprehend those figures, but the fact that I aspire too is mildly pathetic ... 

 

Now back to loud things, stripper poles and beer .... :rolleyes:

post #287 of 1057
Quote:
Originally Posted by Analgesia View Post

This is absurdly off topic, and should solidify my status as not on a complete super geek but also a total loser, but since we're on the topic of big booms I thought I'd point out the largest explosion ever observed . GRB 080916C was a gamma ray burst that occurred 12.2 billion light years away, ran for 23 seconds, and during that time unleashed the energy equivalent of one trillion 50 megaton nuclear bombs going off every second for 110 billion years, or about 7,000 times the entire energy equivalent of our sun over its expected lifetime ... actually I'm not even remotely intelligent enough to fully comprehend those figures, but the fact that I aspire too is mildly pathetic ... 

Now back to loud things, stripper poles and beer .... rolleyes.gif
No, it's right back on topic if we put this in the sub thread. I am sure there are people willing to take up the challenge. Papalock already seems to have a head start eek.gif. As do all of the crazy ones in the 5 star category of bass in the HT ULF score thread tongue.gif.
post #288 of 1057
I need to get on that thread and see where I stack up.
post #289 of 1057
If it's loud earth shaking sound that we are looking for let see if we can get the loudest speaker ever built - Tom Danley's Sonic Boom Cannon. Tom developed it for the U.S. military as a research project. The boom cannon developed 132 db @ 2 hz outdoors!!! eek.gifeek.gifeek.gif

The problem is it would take down Andrew's house within a few seconds IF you could get it in side his house. I tried searching for the pictures and article but was unable to find them. It basically looked like a concrete bunker buried in the side of a hill.

-- Bill --
post #290 of 1057
Thread Starter 
Quote:
Originally Posted by rx-8 View Post

If it's loud earth shaking sound that we are looking for let see if we can get the loudest speaker ever built - Tom Danley's Sonic Boom Cannon. Tom developed it for the U.S. military as a research project. The boom cannon developed 132 db @ 2 hz outdoors!!! eek.gifeek.gifeek.gif

The problem is it would take down Andrew's house within a few seconds IF you could get it in side his house. I tried searching for the pictures and article but was unable to find them. It basically looked like a concrete bunker buried in the side of a hill.

-- Bill --

Now I'm intrigued. biggrin.gif With sufficient leadtime I could modify the basement wall to accommodate bringing in such a beast? biggrin.gif
post #291 of 1057
Quote:
Originally Posted by Analgesia View Post

This is absurdly off topic, and should solidify my status as not on a complete super geek but also a total loser, but since we're on the topic of big booms I thought I'd point out the largest explosion ever observed . GRB 080916C was a gamma ray burst that occurred 12.2 billion light years away, ran for 23 seconds, and during that time unleashed the energy equivalent of one trillion 50 megaton nuclear bombs going off every second for 110 billion years, or about 7,000 times the entire energy equivalent of our sun over its expected lifetime ... actually I'm not even remotely intelligent enough to fully comprehend those figures, but the fact that I aspire too is mildly pathetic ... 

Now back to loud things, stripper poles and beer .... rolleyes.gif

That is absolutely incredible! Defies belief. I love astronomy and all things about the universe. Very interesting.
post #292 of 1057
Quote:
Originally Posted by beastaudio View Post

I need to get on that thread and see where I stack up.
You definitely should beast.
post #293 of 1057
Quote:
Originally Posted by Gorilla83 View Post

Quote:
Originally Posted by rx-8 View Post

If it's loud earth shaking sound that we are looking for let see if we can get the loudest speaker ever built - Tom Danley's Sonic Boom Cannon. Tom developed it for the U.S. military as a research project. The boom cannon developed 132 db @ 2 hz outdoors!!! eek.gifeek.gifeek.gif

The problem is it would take down Andrew's house within a few seconds IF you could get it in side his house. I tried searching for the pictures and article but was unable to find them. It basically looked like a concrete bunker buried in the side of a hill.

-- Bill --

Now I'm intrigued. biggrin.gif With sufficient leadtime I could modify the basement wall to accommodate bringing in such a beast? biggrin.gif

The problem is not getting that beast into your basement (through a wall) - your basement isn't large enough to enclose it.

-- Bill --
post #294 of 1057
Quote:
Originally Posted by rx-8 View Post

If it's loud earth shaking sound that we are looking for let see if we can get the loudest speaker ever built - Tom Danley's Sonic Boom Cannon. Tom developed it for the U.S. military as a research project. The boom cannon developed 132 db @ 2 hz outdoors!!! eek.gifeek.gifeek.gif

The problem is it would take down Andrew's house within a few seconds IF you could get it in side his house. I tried searching for the pictures and article but was unable to find them. It basically looked like a concrete bunker buried in the side of a hill.

-- Bill --

 

 

Perhaps this would suffice? Of course we'd need an amp capable of 1.21 jigawatts, but there's gotta be an old Soviet block reactor available on the black market that we could slip through customs ...

post #295 of 1057
http://en.m.wikipedia.org/wiki/Sonic_weapon

Maybe throw this into Gorrilas basement.
post #296 of 1057
Quote:
Originally Posted by Reddig View Post

You definitely should beast.

I read through the calculations part and my brain melted. I felt like I was reading in circles. How does one calculate their score?
post #297 of 1057
Quote:
Originally Posted by Analgesia View Post

Quote:
Originally Posted by rx-8 View Post

If it's loud earth shaking sound that we are looking for let see if we can get the loudest speaker ever built - Tom Danley's Sonic Boom Cannon. Tom developed it for the U.S. military as a research project. The boom cannon developed 132 db @ 2 hz outdoors!!! eek.gifeek.gifeek.gif


The problem is it would take down Andrew's house within a few seconds IF you could get it in side his house. I tried searching for the pictures and article but was unable to find them. It basically looked like a concrete bunker buried in the side of a hill.


-- Bill --




Perhaps this would suffice? Of course we'd need an amp capable of 1.21 jigawatts, but there's gotta be an old Soviet block reactor available on the black market that we could slip through customs ...

Andrew MAY be able to accommodate that speaker but it would be child's play in comparison to the sonic boom cannon. wink.gif

-- Bill --
post #298 of 1057
Quote:
Originally Posted by beastaudio View Post

I read through the calculations part and my brain melted. I felt like I was reading in circles. How does one calculate their score?

I agree I was lost too. Just post your rooms cubic feet and what subs your running and the OP will do the calculations for you. Dominguez I think who it is can't remember off hand. He did my calculations for me.
Edited by Reddig - 11/15/13 at 8:13am
post #299 of 1057
I didn't realize that Danley made two military weapons?

Hopefully they actually got paid for their efforts that time...
post #300 of 1057
Quote:
Originally Posted by popalock View Post

I didn't realize that Danley made two military weapons?

Hopefully they actually got paid for their efforts that time...

Damn I never knew Danley made anything for the military. Crazy
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