barhrecords
Axe-Master
@ R.D. I understand why Paco was using +2DB, what I do NOT understand is how Sean arrived at 1.26 on input trim to be equivalent to +2DB. And that's what I'm asking Sean to clarify.
The equation for voltage ratio to dB is:
A = 20*log10(V2/V1)
where:
A = decibels
V1 = current input trim
V2 = new input trim
Solving for V2:
V2/V1 = 10^(A/20)
V2 = (10^(A/20)) * V1
Plugging in the values of 2db and current input trim=1:
V2 = (10^(2db/20)) * (input trim=1)
V2 = 10^(1/10)
V2 = 1.2589254117941672104239541063958
1.259 is the ratio (multiplier) that = 2dB increase in the input.