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Selecting Your Source Input
Pressing the Input button cycles through the various audio input sources.
The inputs will always cycle in the same order, as shown below.
With 2-position Switch in ‘6 Ch. Direct’ Mode:
• Direct: input stream from the analog inputs
• Optical: input stream from the optical input
• Coax: input stream from the coax input
Cycling through the inputs is always the same unless you have the 2-position switched to stereo 1-3 mode.
With 2-position Switch in ‘Stereo 1-3’ Mode:
• Stereo 1: Use the Front L/R analog input (lime green) as a stereo input
• Stereo 2: Use the Rear L/R analog input (black) as a stereo input
• Stereo 3: Use the Center/Sub analog input (orange) as a stereo input
• Optical: input stream from the optical input
• Coax: input stream from the coax input
Whenever the input or bitstream changes, the previously selected effect will be automatically re-selected. For example, if
you select Stereo x2 while listening to the 6 ch. Direct input, ‘Stereo x2’ will be stored in memory for the ‘Direct’ Input. The
next time you select the Direct input, Stereo x2 will be automatically selected as the effect.
When returning from Standby, the previously selected input and effect will be shown on the control pod.
Effects
The effect button is used to select the type of surround sound or audio technology you want to use with a particular
input. In many cases, the control pod will recognize what audio technology is streaming from your audio device, and will
automatically select it.
For example, if you are watching a DVD and have selected the Dolby® Digital 5.1 stream on the DVD, then when you select
the DVD audio input, Dolby® Digital will automatically be the selected effect. The control pod will default to the last effect
used by whatever input source you are using.
You can use the ‘effect’ button to select a different audio technology if you wish to change it. Note that not all effects are
available for all inputs (refer to the table):
Repeatedly pressing the ‘effect’ button rotates through the available options for that type of input. If only one effect
option is available, then the effect button will have no impact. Each effect is described below. For more information about
surround sound and other digital audio technologies, visit www.logitech.com.
•
DTS®: Decode the DTS® stream using the DTS® decoding algorithm (or DTS® 96/24 algorithm, depending on the
bitstream). Your audio source must have a DTS® 5.1 soundtrack.
WHAT IT IS: DTS® is a digital audio stream that gives you discrete 5.1 audio. When enabled it will give you full
surround sound with separate front, rear, and center channels.
• Dolby® Digital: Decode the Dolby® Digital 5.1 stream using the Dolby® Digital decoding algorithm. Your audio
source must have a Dolby® Digital soundtrack.
WHAT IT IS: Dolby® Digital 5.1 is a digital audio stream that gives you discrete 5.1 audio. When enabled it will give
you full surround sound with separate front, rear, and center channels.
• Pro Logic II Movie: Decode the Dolby® Digital stereo, PCM stereo, or analog 2 channel stream using the Pro Logic
II Movie decoding algorithm.
WHAT IT IS: Pro Logic II Movie is a surround sound format that creates 5.1 surround sound from stereo movie
sources. When enabled it will give you full surround sound with front, rear, and center channels from a stereo signal.
PC2 movie is optimized for movie content.
• Pro Logic II Music: Decode the Dolby® Digital, PCM stereo, or L/R analog 2 channel stream using the Pro Logic II
Music decoding algorithm.
WHAT IT IS: Pro Logic II Music is surround sound format that creates 5.1 surround sound from stereo music
sources. When enabled it will give you full surround sound with front, rear, and center channels from a stereo signal.
PC2 music is optimized for music playback.
• 6 Channel Direct: Send all 6 channels from the direct input straight to the amplifi ers without applying any
decoding algorithm.
WHAT IT IS: This direct analog stream is raw audio, without decoding. Depending on the audio type, you may or
may not receive surround sound.
Operation
Operation
POSSIBLE EFFECTS
INPUT
DTS® DOLBY®
DIGITAL
PRO
LOGIC II
MOVIE
PRO
LOGIC II
MUSIC
6 CHANNEL
DIRECT
STEREO
X2
STEREO
optical / coax
(DTS® 5.1 stream)
optical / coax
(Dolby® Digital 5.1 ch)
optical / coax
(Dolby® Digital 2 ch stereo)
optical / coax
(PCM stereo)
Direct
Stereo 1, Stereo 2, Stereo 3
Table 1 - Surround Sound/Audio Effects Available by Input Stream
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Z-5500d_manual_AMR.indd 8-9Z-5500d_manual_AMR.indd 8-9 3/23/05 3:49:06 PM3/23/05 3:49:06 PM