Onkyo A-DS650, Instruction Manual

Page: 5 / 36

5
Introduction
Since the A-DS650 is equipped with front, center, and Surround
amplifiers, you can produce Dolby Digital, Dolby Pro Logic, Hall,
Live, Arena, and Studio Surround effects. You can enjoy the feeling
of a movie theater or concert hall in your own living room.
Dolby Digital
Dolby Digital is a new-generation digital audio format for multi-
channel Surround audio. With this digital audio format, you can
create a five full-range channel system that is a developed version
of the conventional Surround system (left, center, right, and Sur-
round channel).
Adding to its five full-range channels, Dolby Digital supports an
LFE (low frequency effect) channel, which is used solely for low
frequency sounds independent of the other channels.
Dolby Digital is sometimes referred to as a “5.1” channel format
since this LFE channel is indicated as 0.1.
This fully discrete 5.1 channel Dolby Digital can reproduce the
sound of a wide and dynamic range, transforming your room into a
home theater.
Dolby Digital technology is implemented in such media as laser
discs, DVDs (digital video discs), CATV (cable television), DBS
(direct broadcasting satellite).
By using CATV or the proper equipment for the playback of laser
discs bearing the
trademark, you can recreate in your own
living room the feeling of watching a movie in a top-quality the-
ater.
DOLBY PRO LOGIC Surround
Many motion pictures have been released in 4-channel “Dolby Ste-
reo” sound, with music, dialogue, and panned effects coming from
the 3-channel front soundstage, and surround effects and ambience
emanating from the sides and rear of the theater.
The motion picture masters are used for production of stereo VHS,
VHS-Hi-Fi, Beta Hi-Fi, and stereo laser discs that you can buy or
rent at your video store. The A-DS650 incorporates the Digital
Dolby Pro Logic Surround Circuit, which is designed to decode the
four-channel audience experience found in DOLBY STEREO
movies. Dolby Pro Logic Surround is capable of recreating a multi-
dimensional soundstage, but with the increased channel separation
it gives a far greater sense of “movement” and sound localization.
Just like in the theater, the addition of the active center channel
ensures that all audience members hear dialogue coming from its
on-screen sources, regardless of seating position.
HALL Surround
This mode is especially suitable for media that already has a sub-
stantial amount of reverb sound, such as classical music, since it
simulates the atmosphere of a concert hall.
LIVE Surround
This mode reproduces the feeling of a live performance.
ARENA Surround
This mode recreates the mood of listening to a concert in a domed
stadium.
STUDIO Surround
This mode is good for studio recordings that may have few reverb
sounds such as pop and jazz.
The DSP converts the musical signal into digital form and pro-
duces reflected sound from the digital signal. This is applied to the
musical signal to yield an effect approaching that of a live perfor-
mance.
NOTES:
•
The concert hall effect is produced from the reflections and
reverberations contained in the original recording. These are
converted into reflected sound that is reproduced from four
directions. Thus, in some cases an unnatural impression can be
conveyed if there are too few reflections in the recording or if
the effects in the original recording were produced artificially.
•
The concert hall effect is not merely an artificial reverberation
unit, but a sophisticated effect that spreads existing reverbera-
tion around.
Using the Multi-Room Remote System equipment, you can operate
all components connected to the A-DS650 from either the main
room or the sub-room. (Refer to page 28 for more details).
The following equipment (sold separately) is essential for using the
Onkyo Multi-Room System:
* Sensor Unit: Model No. HR-10
* Remote Emitter: Model No. HE-50 (AC)
* Remote Emitter Head: Model No. HE-10
The following secondary remote controller can be used to operate
the system from the sub-room:
* Secondary Remote Controller for Multi-Room Remote System:
Model No. RC-MR1H
Surround System
D I G I T A L
DSP (Digital Signal Processor)
Multi-Room Remote System ( )
Ceiling reflections
Stage
reflections
Direct sound
Wall reflections
Wall reflections
X