dB are a ratio, logarithmic in scale. 3dB less is a reduction by 50% (may also be called the half power point depending on what is being measured). 10dB is a factor of 10, so 10dB less is 1/10th.
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '11 MINI Countryman Cooper D All4 '90 LR 90 SW
dB are a ratio, logarithmic in scale. 3dB less is a reduction by 50% (may also be called the half power point depending on what is being measured). 10dB is a factor of 10, so 10dB less is 1/10th.
I read it several times, then checked to make sure it was in English!!!!
Does anyone have experience of the increase in 'throaty roar' from changing the factory filter to a K&N trumpet? [/quote] Yes (hope a cone filter is acceptable). Nice sound.
Last edited by The Austrian; 06/07/1610:49 AM. Reason: pic added
Hannes once: Green M3W; 2013 now: Red 4/4 Sport; 2011 and some practical cars for use in real life
