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.

Top Row

4.Creative Multi Speaker Surround: 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.

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 17.

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. Dolby Surround:

This button cycles between Dolby

Pro Logic processing of the digital

signal, then the analog input and no

Pro Logic processing. To decode

Dolby surround program material

at the Digital DIN input, select the

Analog Pro Logic mode.

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 17 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

A Quick Reference Guide is provided separately. Consult this guide for advice about playing different program sources.

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

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.

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