Nothing beats playing your favorite games while surrounded by crisp, realistic sound. In order to get the sound you crave, you're going to need to get your PS3 hooked up to a home theater system with an array of speakers. This will put you directly in the middle of the action.
Determine the connection that you have available. The PS3 is equipped with HDMI and optical outputs, both of which can transmit a digital surround sound signal to your home theater receiver. You may not have an HDMI connection on your receiver, but you should have an optical connection. If you use HDMI for audio, you'll need to connect the HDMI from the PS3 to the receiver's HDMI input, then connect a second HDMI cable from the receiver's HDMI output to the television, in order to get video to your TV.
Purchase the appropriate cables for the connection that you've determined.
Connect the cable from the digital output on your PS3 to the input on your home theater receiver. Use a connection designated for a game system, when available, or use other connection such as "Video 1" or "Aux."
Connect the video. If you didn't use HDMI to connect to your receiver, run a separate HDMI, component or composite video connection from your PS3 directly into your TV. If you connected HDMI to your receiver, run an HDMI cable from the receiver to the TV.
Adjust your audio settings in your PS3 options menu. Switch your television to the input mode that corresponds with where you connected the PS3. In the home menu, go to "Settings/Sound" then "Settings/Audio Output Settings." Then, adjust the audio settings to reflect the connections you've made (HDMI or optical).
Select audio formats. Once you've selected the audio output type, you will be prompted to choose from various formats (2 channel, Dolby 5.1, DTS 5.1, 7.1). Refer to your home theater receiver to find out which formats it processes and consider how many speakers you'll be using when selecting formats.
Connect the speakers. If you have not yet already set up your speakers, connect each speaker to the appropriate output terminals on your receiver with speaker cable, matching the positive and negative terminals of the speaker with the matching terminals on the receiver.
Keep all components off when making connections.