JBL ESC550 setup guide Surround Mode Operation, What is Dolby* Pro Logic*?

Surround Mode Operation

What is Dolby* Pro Logic*?

Dolby* Pro Logic* is an encode/decode process by which four channels of sound- track information are encoded into two channels for playback on VCRs, laser disc players, and some TV broadcasts, and then decoded back into four

channels for playback through five loudspeakers. Remember that a Dolby Pro Logic system consists of three channels of information for front left, center, and right speakers and one channel of mono surround information. The surround

channel is played back through two speakers. Dolby Pro Logic helps to re-create all of the impact and excitement of a movie theater in your home.

This system contains three surround modes.

1. Dolby Pro Logic – In this

mode all five speakers are

used.

2. Dolby Pro Logic Phantom –

In this mode the center

channel does not operate.

This may be preferred when

listening to a music source

3.2-channel – In this mode the program is played back in a traditional stereo form.

Rear	– Bass +
Speakers
	Surround Mode

Aux

Surround

– +

Tone Calibrate

Tape/Aux Stereo/Mono

Rear

Speakers

that was not recorded with

surround channel information.

To switch between the three	the remote control.
surround modes: Push
“Surround Mode” on The
Source or

If you are listening to a pro- gram in the Dolby Pro Logic Normal or Phantom mode and you wish to turn off the surround speakers:

Push “Rear Speakers” on The Source.

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