I'd like to use Raspberry PI 3 with a Hifiberry DAC+ Pro. Usually 5V/2.5 A power supply is recommended but I sometimes see 3A ones are also used. In some forums linear power supplies are recommended to increase audio quality.
So question 1 : I already have a linear 5V/4A power adapter, is it possible to use this ? Will it harm the board ?
Question 2 ; What's the audible effect of a linear power supply to a standard Raspberry Pi 2.5 A power adapter ? Or is this ever tested ?