if you can't hear something properly you could use speakers to hear louder you could see many speakers in discos and maybe in parties.you could use speakers if cant hear something loud in the computer or to listen music By anmohl
A speaker is an output device, a microphone is an input device. The two are completely separate devices that do no depend on each other. If the microphone is disabled and the speakers are enabled, you will be able to hear only.
The Speakers get connected to the TV that the console is connected to. So yeah you can purchase a home theater and connect it to your HDTV and when you play the PS3 if everything is connected correctly you will hear it through a number of speakers.