Thread: Sound deadening
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      02-26-2016, 10:52 AM   #87
csbear
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Drives: SO M2C
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Quote:
Originally Posted by nikotine30 View Post
C&D measured the M2 at 89 db at "wide open throttle". For comparison, it measured the BMW 340i at 76 db, a difference of 13 db. From the world of acoustics we know that a sound which is 13 db louder than another is approximately 125% louder, or more than double the loudness!

C&D also measured your reference, the Cayman GT4 at 90 db, which is almost the same loudness as the M2 (89 db)

Speaking for myself, this suits me just fine because I prefer a car which is quiet for normal rides, but much louder when I want to have some fun.
Thank you! I had totally missed that, and those decibel numbers look much better. And I agree on the last part as well, quiet when it needs to be and louder at open throttle is good for me as well.

The GT4 does have the engine right behind the ear, so that obviously is a big sound contributor as well.
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