how many db to break a window

I was wondering has anyone broke any windows or anything off a caused by a stereo. How many db was you doing setup etc.1993 sdv

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really. ?

I once broke the rear window in my competition VW bug with about 128db.  The window popped right out of the gasket, slid down the back of the car and smashed on the ground.  DQ!  Support the12volt.com

DYohn wrote: I once broke the rear window in my competition VW bug with about 128db.  The window popped right out of the gasket, slid down the back of the car and smashed on the ground.  DQ!

lol, I saw that happen with an old superbeetle at 131db.

megaman wrote: DYohn wrote: I once broke the rear window in my competition VW bug with about 128db.  The window popped right out of the gasket, slid down the back of the car and smashed on the ground.  DQ!  lol, I saw that happen with an old superbeetle at 131db.

Ha!  Yea, mine was a '73 Superbeetle.

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To answer your question, still_walkin, glass - especially automotive safety glass - is very strong.  While windshields have been know to fracture in some comp vehicles with greater than 165dbSPL, it's probably more likely they broke from vibration or had a small crack before the run than it is that the sound pressure alone broke them.  To flex auto glass enough to break from SPL alone would probably require more than 180dbSPL.Support the12volt.com

Thanks for the replies and no I don't want to break my windows just wanted to know how much it took to break one .1993 sdv

Alpine 4x6 6x9 5 1/4 swr-10d4

alpine v60

12.5 VGA flip down

Nettop pc w/10" touch screen

78nova

5-re audio 5x7 ,10" sub &

Xtx-500.5

"Take the faceplate off get the jumperpack"

I cracked a windshield in  Mazda B2000 Xcab,   2- 12's and 2-15's downfired with 135db

well this is my knid of topic.   I have cracked the windshield in my 88 crx above 160 db.    and depending on the setup in some vehicles it is easy to destroy a windshield below 170db. he are cideos of a van I was working on shortly before dbdrag finals.   Each time we broke the windshield we were upwards of 167DB. We broke 3 winsheilds in 1 week testing before finals http://www.youtube.com/watch?v=5ATZArN7Zk8 http://www.youtube.com/watch?v=1e0AV1RBq0w http://www.youtube.com/watch?v=B2LRFjVVjuY The main thing in breaking thw windshield is more or less the frequency used.    I was burping at mid to high 60 hz range, where the van uses a mid to low 50 hz range tone. I could see someone breaking a windsheild in the 150 db range if plaing something in the 30-40hz range2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

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