9
10
No lights illuminated: Mutes any
analog stereo or CMSS output. Use
this setting if you wish to play an
analog stereo signal through the
Dolby Pro Logic processor.
For more information about
Creative Multi Speaker Surround,
see page 13.
5. Dolby Digital indicator light:
This light turns on whenever a
Dolby Digital signal is detected at
the SPDIF input of the DTT2500
Digital. For Dolby Digital 5.1
sound reproduction, make sure only
this light is illuminated.
6. Dolby Surround: This button
cycles between Dolby Pro Logic
processing of the digital signal,
then the analog input and no Pro
Logic processing.
7. Audio Mode: Use this button to
play just the left or right channels
of a stereo digital signal (PCM
from an audio CD, a Video CD or a
stereo signal from a DVD). Use
this when, for example, a Video CD
has different languages on the left
and right channels.
Repeated presses of the button
selects which channel is fed to both
the Left and Right front speakers.
LL-Left channel to both Left and
Right front speakers.
RR-Right channel program to both
Left and Right front speakers. See
“Audio Mode Selection”, page 13
for further information about this
feature.
8. Speaker Test: Press this button
to start the “test sound” generator.
Use this test sound to position all
the speakers and to balance their
relative output.
The test sound moves in sequence
from the left satellite, the center
speaker, the right satellite, then to
the right surround satellite, left
surround satellite and the
subwoofer. All of the indicator
lights will blink on and off while
the test sound generator is in
operation.
The test sound will operate for
three complete cycles and then stop.
You can terminate the sound at any
point by pressing the Speaker Test
button again.
First use the test sound to verify
that each speaker is operating.
Top Row
4. Creative Multi Speaker Sur-
round: CMSS processes analog
program material. Repeated presses of
this button steps through five
different operation modes.
Music: Creates a 5.1 speaker
soundfield appropriate for music from
any analog sound source.
Movie: Creates a 5.1 speaker
soundfield appropriate for movie or
game enjoyment from an analog
sound source.
FourPoint: Use this mode for DVD
games having Dolby Digital
soundtracks with Environmental
Audio Extensions or Microsoft
®
DirectSound
®
3D for real-time
positioning of sound effects.
Stereo: Use this mode when you want
to hear just stereo effects or the stereo
Dolby Digital downmix of a DVD.
Decoder Amplifier Functions
When the power is switched
“ON”, the green indicator lights on
the face of the Decoder Amplifier
will sequentially light from the left
to the right. The CMSS Music light
will remain illuminated after start-
up. The indicator light for Dolby
Digital will illuminate automatically
if a Dolby Digital program is
playing.
1. ON/OFF: Switches DeskTop
Theater DTT2500 Digital power on
and off.
An indicator light signals the power
is on.
2. Master: Adjusts the volume of
the entire system.
3. Center, Subwoofer and
Surround: These controls adjust the
level of the indicated channels. Their
output level should be balanced with
the fixed output level of the Left and
Right front speakers.
A Quick Reference Guide
is provided separately.
Consult this guide for
advice about playing
different program sources.
Slip it underneath the
Decoder Amplifier for
future use.
Connection to Sound Blaster
Live! via Digital DIN
DOLBY DIGITAL
(AC-3) SPDIF IN
SPEAKER OUTPUTS
LINE IN REAR IN
C SUBWOOFER RS
LS
R
L
15V
DC IN
DIGITAL
DIN
ANALOG AUTO
INPUT
DVD OUTPUT
(EXAMPLE: CREATIVE LABS
PC-DVD ENCORE Dxr2)
SOUNDCARD OUTPUT
(EXAMPLE: SOUND BLASTER LIVE!)
DIGITAL
OUTPUT
REAR
OUT
LINE
OUT
POWER
SUPPLY
ADAPTER
RIGHT SURROUND
SATELLITE
RIGHT SATELLITE
LEFT SURROUND
SATELLITE
LEFT SATELLITE
CENTER CHANNEL
SPEAKER
SUBWOOFER
BLACK
GREEN
Wiring Diagram
If your Sound Blaster Live! sound
card includes a Digital I/O card,
you can take advantage of the
clear, distortion-free audio
available from its Digital DIN
output.
1. Insert on end of the SPDIF cable
into the Digital DIN output jack
on the Sound Blaster Live!
Digital I/O card. The position of
the Digital DIN connector on the
Digital I/O card may be different
from this diagram. The Digital
DIN connector is the only
connector with a 9-pin configura-
tion.
2. Insert the other end of the SPDIF
cable into the Digital DIN input
on the decoder amplifier.
3. Use the following procedure to
configure the Sound Blaster Live!
sound card for four speakers:
• Bring your mouse pointer to the top
of the monitor screen to display the
Creative Launcher.
• Click on AudioHQ.
• Click on the Speaker tab.
The speaker dialog box will appear.
• On the configuration tabbed page,
select the “4 Speakers” option.
• A sofa icon (representing you)
appears in the center of the preview
box, with four speakers at the corners
of the box.
• In some versions of Sound Blaster
Live! software, you can select the
“four-speaker” output option in the
Environment deck of the Surround
Mixer application (located in the
Sound Blaster Live! program tab of
the Creative Launcher).
Note: When the Analog/Auto switch is
pushed towards the Auto side, the
signal at the Digital DIN input is given
priority and the signal at the Analog
Audio inputs will be ignored. To listen
to a sound source through the analog
audio inputs, push the switch to the
Analog side.
DOLBY DIGITAL
(AC-3) SPDIF IN
SPEAKER OUTPUTS
LINE IN REAR IN
C SUBWOOFER RS
LS
R
L
15V
DC IN
DIGITAL
DIN
ANALOG AUTO
INPUT
Digital DIN Connector
DIGITAL I/O CARD
SPDIF CABLE
DTT3500 Digital Decoder Amplifier
DIGITAL DIN
