|03-20-2016, 04:22 PM||#21|
RCC Supreme Contributor
I am: Dave Holmes
Join Date: Mar 2004
Location: Prince Edward County, Ontario (no longer Brampton!)
Radio of choice:
Futaba 72 Mhz
# of RCs: 30+
Feedback: 4 / 100%
Total Props: 10
Re: Copper pipe as muffler silencer
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Don't forget,our ears are lousy sound meters. You have to make at least a 3db change for it to register on us. 3db reduction is reducing the sound pressure by 50%, and 3db increase is doubling the sound pressure. So if you can hear the difference, in reduction, you have cut it by more than half.
The older I get, the better I used to be!
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