Additional Information
Glossary
Surround sound
Sound that consists of three elements: direct sound, early reflected sound (early reflections) and reverberative sound (reverberation). The acoustics where you hear the sound affect the way these three sound elements are heard. These sound elements are combined in such a way that you can actually feel the size and the type of a concert hall.
• Types of sound
Early reflections | Reverberation |
Direct sound
• Transition of sound from rear speakers
Direct sound Early
Level | reflections Reverberation |
Early reflection time | Time |
Dolby Pro Logic Surround
As one method of decoding Dolby Surround, Dolby Pro Logic Surround produces four channels from
Centre mode
Setting of speakers to enhance Dolby Pro Logic Surround mode. To obtain the best possible surround sound, select one of the following four centre modes according to your speaker system.
•WIDE mode
Select WIDE mode if you have front and rear speakers and a large centre speaker. With the WIDE mode, you can take full advantage of Dolby Surround sound.
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Rear | Rear |
speaker (L) | speaker (R) |
•PHANTOM mode
Select PHANTOM mode if you have front and rear speakers but no centre speaker. The sound of the centre channel is output from the front speakers.
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Rear | Rear |
speaker (L) | speaker (R) |
•3 STEREO mode
Select 3 STEREO mode if you have front and centre speakers but no rear speaker. The sound of the rear channel is output from the front speakers to let you experience some of the surround sound without using rear speakers.
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Dolby Digital
This sound format for movie theatres 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
5.1 CH/DVD jacks
These jacks are used to input decoded Dolby Digital
Preset station
A radio broadcasting station that is stored in memory of the receiver. Once you “preset” stations, you no longer have to tune in the stations. Each preset station is assigned its own preset number, which lets you tune them in quickly.
•NORMAL mode
Select NORMAL mode if you have front and rear speakers and a small centre speaker. Since a small speaker cannot produce enough bass, the bass sound of the centre channel is output from the front speakers.
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Rear | Rear |
speaker (L) | speaker (R) |
Delay time
Time lag between the surround sound output from front speakers and 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 apart from your listening position.