Sound Settings - Recommended Levels
From PMDG Ops
The sound levels for the PMDG 747-400 and 747-400F have been designed to use the default sound settings in FS9 - we recommend setting both these values at "50" but if you wish you can change the loudness of the engines and wind to suit your preference.
The PMDG volume setting controls the loudness of the custom sounds of the aircraft including the Packs, Fans, TCAS, GPWS and other cockpit sounds. We recommend setting this level at "60".


