Integra DTR-5.3 - Manual (Page 49)

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Listening Modes
Orchestra
This mode is appropriate for classical and opera music. The center
channel is cut and the surround channels are emphasized to widen
the stereo image. It will simulate the natural reverberation that is
created in large halls.
Unplugged
This mode is suitable for acoustical instrumental sounds, vocals, and
jazz music. By emphasizing the front stereo image, it will simulate
the acoustics that you would experience in front of the stage.
Studio-Mix
This mode is for rock and popular music. The lively sounds are
enhanced for a powerful acoustic image that simulates the feeling of
being in a club or rock concert.
TV Logic
This mode gives realistic acoustics to TV programs that are aired
from TV studios. It enhances the entire surround sound and clarity of
the conversation.
All Ch Stereo
This mode is designed for playing background music. The front,
surround, and surround back channels create a stereo image that
encompasses the entire area.