Additional Information

Glossary

Center mode

Speaker setting to enhance the Dolby Pro Logic Surround mode. Select one of the following four center modes according to your speaker system.

•NORMAL mode

Select NORMAL mode if you connect a small-sized center speaker to this speaker system. Since a small speaker cannot produce enough bass, the bass sound of the center channel is output from the front speakers.

Front

Small

Front

speaker (L) center speaker

speaker (R)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rear

Rear

speaker (L)

speaker (R)

The test tone is output as shown on page 11.

•WIDE mode

Select WIDE mode if you connect a center speaker equivalent to the two front speakers. With the WIDE mode, you can take full advantage of Dolby Surround sound.

Front

 

 

 

 

 

Front

speaker (L)

Center speaker speaker (R)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Rear

Rear

speaker (L)

speaker (R)

The test tone is output as shown on page 11.

•3 STEREO mode

Select 3 STEREO mode if you do not want to use the rear speakers to output sound. The sound of the rear channel is output from the front speakers to let you experience some of the surround sound effect without using rear speakers.

Front

Front

speaker (L) Center speaker

speaker (R)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The test tone is output as follows:

/Front (L) /Center /Front (R)

• PHANTOM mode

 

5.1-channel input (5.1 CH IN) jacks

Select PHANTOM mode if you do not

These jacks are used to input decoded multi-

want to use the center speaker to output

channel format audio signals (e.g., Dolby

sound. The sound of the center channel is

Digital (AC-3), DTS, etc.), allowing you to

output from the front speakers.

enjoy 5.1 channel surround sound. Use these

Front

Front

jacks to connect a multi-channel decoder or a

speaker (L)

speaker (R)

DVD player with a built-in multi-channel

 

 

 

decoder.

 

 

 

 

 

 

 

Rear

Rear

speaker (L)

speaker (R)

The test tone is output as follows:

/Front Rear ?

Delay time

Time lag between the surround sound output from the front speakers and that from the rear speakers. By adjusting the delay time of the rear speakers, you can obtain the feeling of presence. Make the delay time longer when you have placed the rear speakers in a small room or close to your listening position, and make it shorter when you have placed them in a large room or far from your listening position.

Dolby Pro Logic Surround

As one method of decoding Dolby Surround, Dolby Pro Logic Surround produces four channels from two-channel sound. Compared with the former Dolby Surround system, Dolby Pro Logic Surround reproduces left-to-right panning more naturally and localizes sounds more precisely. To take full advantage of Dolby Pro Logic Surround, you should have one pair of rear speakers and a center speaker. The rear speakers output monaural sound.

Dolby Surround

Encoding and decoding system for Dolby Surround sound for consumer use. Dolby Surround decodes the extra channels in the Dolby Surround-encoded sound tracks of movie videos and TV programs and produces sound effects and echoes that make the action seem to envelope you.

Dolby Digital (AC-3)

This sound format for movie theaters is more advanced than Dolby Pro Logic Surround. In this format, the rear speakers output stereo sound with an expanded frequency range and a subwoofer channel for deep bass is independently provided. This format is also called “5.1” because the subwoofer channel is counted as 0.1 channel (since it functions only when a deep bass effect is needed). All six channels in this format are recorded separately to realize superior channel separation. Furthermore, since all the signals are processed digitally, less signal degradation occurs. The name “AC-3” comes from the fact that it is the third audio coding method to be developed by the Dolby Laboratories Licensing Corporation.

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