YAVR40 om (j).qx 9/15/98 3:47 PM Page 16
Operation
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Surround Mode OptionsAn additional surround option is theyour seat position from the screen. The
The AVR40 offers a choice of surroundOPhantom� mode, which uses the less Wrap you add, the closer you appear
modes. To select a surround mode pressPro Logic decoding circuits, but does to be to the screen or performance.
the Surroundbutton �r on thenot send any information to the
front panel or remote. The choice ofcenter channel.Based on Harman InternationalOs years of
which surround mode to use is influ-research into surround sound technology,
enced by the type of program materialFor true two-channel stereo operation,the Wrap circuits are based on the
being played and the specifics of yourpress the Surround button �r toadvances developed by noted surround
listening room setup.use only the front left and right speakers.sound designer Jim Fosgate. Wrap func-
tions by blending carefully controlled
True surround sound processing enablesNote that the surround modes availableamounts of the front channel signal into
four separate audio signals to be trans-will vary according to speaker selection.the rear channel to achieve the desired
mitted within the left and right channelsWhen NOCNTRis selected, only Hallimpact on the listening environment.
of a videocassette, radio or TV broadcast,and Phantom modes may be used, as
or video disc. Through a process knownPro Logic requires a center channelTo use the Wrap circuits, the AVR40 must
as matrix encoding a separate centerspeaker. When NOREARis selected onlyfirst be placed in the Pro Logic or
channel signal for dialogue and a sur-the Pro Logic mode is available.Phantom mode by pressing the
round channel for effects are encodedSurround button �runtil the cor-
into the stereo signal. When you see theY For true two-channel stereo listeningrect mode name appears in the front
Dolby Surround, Dolby Stereo, DTSpress the Surround button �r untilpanel display. Note that in these modes
Stereo or other similar logos on a movieSURR OFFappears in the informationthe Wrap Indicator÷ on the front
or broadcast this indicates that the pro-display.panel will illuminate.
gram has surround information.
Y The AVR40 is equipped with a memoryTo adjust the degree of Wrap in use, press
When the program you are listening tosystem that permits a different surroundthe Wrap buttons öo to increase or
has encoded surround information, asmode to be used with each of the inputdecrease the degree of Wrap until the
shown by one of the logos or brandsources. You may select the mode that issound is to your liking. The changes in
names described above, select the most appropriate to each source, such asthe Wrap Indicatorprovide a visual
Pro Logicmode using the Pro Logic for a VCR or disc player con-reference of the amount of Wrap that is
Surround button �r.nected to a Video input, Hall for the CDapplied.
input and Surround Off for the Tuner.
If you are listening to a conventional twoWhen you select an input again for aNote that there is no Oright� or Owrong�
channel stereo program or recording yousubsequent listening session the systemsetting for the Wrap circuits. Experiment
may wish to experiment by using thewill automatically change to your pre-and find the setting that sounds best. Since
Hallmode. Although these programs doferred surround mode for that input.the Wrap circuits function in conjunction
not have any intentional surroundwith the surround decoder you may also
encoding information, they do containWrap Circuitryfind that the Wrap setting will differ with
natural ambiance information that thedifferent types of music and program
AVR40 can process to create rear channelThe AVR40 contains Harman KardonOsmaterial. For example, you may want to
exclusive Wrap circuits, which may be
information. The Hall mode uses the leftused to increase the feeling of spacious-increase the wrap for a sporting event or
and right front speakers, but not the cen-ness in a listening room. A simpleconcert recorded in a large concert hall,
ter channel, while a specially processedwhile you may wish to decrease it for inti-
and retrieved sound is sent to the rearexplanation of the wrap circuits is tomate chamber music presentations.
channels. Depending on the specific pro-think of them as moving your listening
gram the Pro Logic mode may often pro-position closer to or further from the
vide a pleasing sound presentation fromstage or screen. The more Wrap you add
stereo programs.the further away you Omove� the sense of
AVR40 rev (j) 4/16/97 |
ACEC
HARMAN KARDON
