Originally Posted by 9points
Recently I've been told that the Airbus manuals state that the speakers should be set on, 1 o'clock, during pre flight and then left on for the whole flight.
These people who told you that, did they, perchance, show you where in "Airbus manuals" it says that? Because I don't even see the word "speaker" or "speakers" anywhere in my manuals. It does say this:
Originally Posted by Airbus Gods
The flight crew must use the headset:
. From the ENGINE START phase until the TOP OF CLIMB phase
. From The TOP OF DESCENT phase until the aircraft is parked.
But no mention of speaker use at all, much less mandatory speaker use.