3dB means the ratio is 10^0.3 ~ 2
6dB means the ratio is 10^0.6 = (10^0.3) ² = 2² = 4
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6dB means the ratio is 10^0.6 = (10^0.3) ² = 2² = 4
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Four times.
Each 3dB is x2
Each 3dB is x2