dB

Not that I know of, There is a place online, but I dont remember the name.//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

I'm guessing your physics text book is written in Mexico or something then... lol
seeing as I believe the world record for the loudest rock concert was in the 120dBs...

ah well, believe what you wanna... I'm sure your subs will do 150dBs then aswell...

Click to expand...

DBB, you dont wanna mess with this kid. He knows his stuff and will e-bash you in a heartbeat. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

http://www.caraudio.com/forum/showthread.php?t=153417

I'm guessing your physics text book is written in Mexico or something then... lol
seeing as I believe the world record for the loudest rock concert was in the 120dBs...

ah well, believe what you wanna... I'm sure your subs will do 150dBs then aswell...

Click to expand...

'The Who' set a record in 1975 at 130db. Through a Google search, I found it was broken by a band called 'Deep Purple", but it didn't give a decimal number.

and a google of them found: "Deep Purple’s record was 117 decibels"
hmm.. lol..

Click to expand...

Hmm indeed...

"The Who's live performances were traditionally extremely loud. For most of the 1970s and 1980s they were listed in the Guinness Book of World Records as the loudest Rock band in the world, measured at 130 decibels, though other bands, notably Deep Purple, have since taken over that dubious honour. "

http://en.wikipedia.org/wiki/The_Who

Anyhow, a few years back, I would go to shows once or twice a week. Two or three times I've had stand beside large floor speakers for 10-15 minutes at a time. My ears would ring for a few days. So it can get loud enough to cause permanent damage.

I think your book is off a little bit. I remember reading that a rocket taking off is 180 db's, and if I'm not mistaking a plane taking off is like 140db.

nope its in my phys science book and do you know how loud a f'n rocket is and a rock concert is easily 150

Click to expand...

Unfortunately our education system is flawed. The books used in our schools are chosen by a committee from all areas of education. Each member on this committee is supposed to read a bunch of the candidates and vote on the best. Unfortunately they hardly ever read the books and most of the time vote on which ever company has given them more bribes… It’s kind of like the senate.

As an example I know of a physical science book that wants you to calculate the wavelength of "green" and "purple" stars. It's sad really.

I have no doubt that if your book says those dB readings, it is wrong.

On one hand I think you need to grow up and learn the meaning of respect...On the other hand Radio Shack has cheap dB meters

200db is nothing. type r's can easily hit 240+//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

dB(SPL) Source (with distance)

194 Theoretical limit for a sound wave at 1 atmosphere environmental pressure

180 Rocket engine at 30 m;

Krakatoa explosion at 100 miles in air(160 km)[1]

150 Jet engine at 30 m

140 Rifle being fired at 1 m

130 Threshold of pain; train horn at 10 m

120 Rock concert; jet aircraft taking off at 100 m

110 Accelerating motorcycle at 5 m; chainsaw at 1 m

100 Jackhammer at 2 m; inside disco

90 Loud factory, heavy truck at 1 m

80 Vacuum cleaner at 1 m, curbside of busy street

70 Busy traffic at 5 m

60 Office or restaurant inside

50 Quiet restaurant inside

40 Residential area at night

30 Theatre, no talking

10 Human breathing at 3 m

0 Threshold of human hearing (with healthy ears)

Wiki-info.

200db is nothing. type r's can easily hit 240+//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

Click to expand...

are u sure mikey? i thought around the 250-260s???

240 riced out honda civic with 1 legacy 10" in a prefab tuned at 120hz

FTL

"someone have a little attitudnial problem?"

and obviously, you havnt read, but da type r'z be hitin at least dem 2 fiddyz pluz

thats off HU powa 2

to answer the original poster's Q

http://www.splmeter.com