AirPlay, Earbuds, Bluetooth, Headphones, etc. Never understood the obsession with sound quality from mobile devices including notebooks, tablets & phones.
Actually I prefer others around me not hear my personal conversations which is the only practical reason to use the speakers on a phone.
On a tablet.. I'd be pissed if somebody in the seat in front of me on a plane or train wasn't using headphones or earbuds
If you're at home fine. Invest in a portable Bluetooth speaker or some headphones.