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| DMac |
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Age: 38 Posts: 1372 Joined: 7th Nov 2004 Ride: Lancer Coupe Location: Southeastern suburbs, Melbourne |
Hey guys i always see it but never know what it means. I know it is the opposite to SQ so it got something to do with being loud and not quality.
Cheers |
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| Dellboy999 |
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Sound Pressure Level
_________________ Full working BA Shifter now upgraded to BF Shifter. |
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| data_mine |
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Yes, measued in dB (deci-Bells) usually with an 'A' rating - dBA. Measurements are taken from defined positions, while playing an agreed apon track (as they do in SQ).
Every extra 3dB is a doubling of power output (and naturally in an ideal world a doubling of power input). But the human ear needs an extra 10dB to detect it as twice as loud!
_________________ 1998 DL LTD in Sparkling Burgundy, daily, 302W, stereo, slow |
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| DMac |
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Age: 38 Posts: 1372 Joined: 7th Nov 2004 Ride: Lancer Coupe Location: Southeastern suburbs, Melbourne |
{USERNAME} wrote: Sound Pressure Level
Hmm...whats that mean. Cheers |
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| Dellboy999 |
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Here you go, just what ya need to know.
http://www.jimprice.com/prosound/db.htm#spl
_________________ Full working BA Shifter now upgraded to BF Shifter. |
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| DMac |
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Age: 38 Posts: 1372 Joined: 7th Nov 2004 Ride: Lancer Coupe Location: Southeastern suburbs, Melbourne |
ah okay.
Cheers everyone. |
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| pyroay |
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Age: 44 Posts: 2121 Joined: 14th Dec 2004 Ride: FG Turbo Territoty Ghia Location: Traralgon |
{USERNAME} wrote: Yes, measued in dB (deci-Bells) usually with an 'A' rating - dBA. Measurements are taken from defined positions, while playing an agreed apon track (as they do in SQ).
Every extra 3dB is a doubling of power output (and naturally in an ideal world a doubling of power input). But the human ear needs an extra 10dB to detect it as twice as loud! Couldn't have put it in better words....
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