> I wonder what kind of magic they have that no other laptop brand is able to put better speakers in their laptops.
The answer is integration.
With Windows laptops, you have one company doing the sound card, one company doing the speakers and one company doing the enclosure. What you actually want is your sound card's equalizer curve being perfectly tuned to your speakers' frequency response, taking into account how their positioning in your specific laptop enclosure affects the sound. If your sound card maker doesn't know what laptop the card will go into, they just straight up can't do this.
There's also the fact that sound cards have to be conservative about how much power they output, to avoid blowing up the speakers. Apple knows the exact tolerances of the ones in their laptops. They even have special temperature sensors in them, so that they can increase the power even more, and go back to a safer level in software if the temperature ever crosses a safety threshold.
The answer is integration.
With Windows laptops, you have one company doing the sound card, one company doing the speakers and one company doing the enclosure. What you actually want is your sound card's equalizer curve being perfectly tuned to your speakers' frequency response, taking into account how their positioning in your specific laptop enclosure affects the sound. If your sound card maker doesn't know what laptop the card will go into, they just straight up can't do this.
There's also the fact that sound cards have to be conservative about how much power they output, to avoid blowing up the speakers. Apple knows the exact tolerances of the ones in their laptops. They even have special temperature sensors in them, so that they can increase the power even more, and go back to a safer level in software if the temperature ever crosses a safety threshold.