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Old 07-05-2005, 04:24 AM
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DogBreath DogBreath is offline
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Join Date: Jun 2005
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Default Re: What effect does a resonance hole have on the bass drum sound?

You get more projection of sound, and the beater has less rebound, but there is a loss of tonal warmth. The reason the hole is offset from the center is that much of the low-end sound that you hear from a bass drum is generated from the sound vibrations resonating back and forth between the center of the beater head and the center of the resonant head, therefore no center = no resonance. Also, sometimes a hole is needed for internal placement of a microphone. Any hole up to 4 1/2 inches will have an effect on warmth and projection, 5 inches is often needed for micing, and anything over 7 inches defeats the purpose of even having a resonant head.
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