Quote:

as far as sound pressure levels they are measured in dB's 120dB to 123dB is a twice the presure as measured in dB's



Another incorrect statement. Again, it takes twice the power (watts) to increase the pressure (SPL) 3dB. It is twice the power not twice the SPL. You're making a mistake arguing with a sound engineer.

Bob 2005 America, 904cc - sold. 2014 Trophy SE.