How to Enable Startup Boot Sound Chime on Newer Macs
Want to re-enable the startup boot chime sound effect on a new Mac? You can do that with a command line string entered into the Macs Terminal. As you may know, new Macs default to not making a startup boot chime sound effect, this is in contrast to every prior Mac model which included a boot sound effect.
With a little effort, you can enable the boot startup sound effect on modern Macs however, including newer model MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, and Mac Pro.