Adjusting The Output Levels - JBL CINEMA PROPACK 600 Owner's Manual

9. When you have completed your selection for
the surround channel, press the Set Button
, and then press the
/
on the remote or the Selector
Buttons on the front panel to change the
display to S-W SPEAKER.
10. Press the Set Button , and then
press the Buttons
/
remote or the Selector Buttons
front panel to select the option that best
describes your system.
The choices available for the subwoofer position
will depend on the settings for the other speakers,
particularly the front left/right positions.
If the front left/right speakers are set to SMALL,
the subwoofer will automatically be set to SUB,
which is the "on" position.
If the front left/right speakers are set to LARGE,
three options are available:
If no subwoofer is connected to the DCR600,
•
press the Buttons 31
/
remote so that SUB NONE appears in the
Main Information Display . When this
option is selected, all bass information will be
routed to the front left/right "main" speakers.
If a subwoofer is connected to the DCR600,
•
you have the option to have the front
left/right "main" speakers reproduce bass fre-
quencies at all times, and have the sub-
woofer operate only when the DCR600 is
being used with a digital source that contains
a dedicated Low-Frequency Effects, or LFE,
soundtrack. This allows you to use both your
main and subwoofer speakers to take advan-
tage of the special bass created for certain
movies. Press Buttons
/
remote so that SUB (LFE) appears in
the Main Information Display
If a subwoofer is connected and you wish to
•
use it for bass reproduction in conjunction
with the main front left/right speakers,
regardless of the type of program source or
surround mode you are listening to, press the
Buttons on the remote so
/
that SUB L/R+LFE appears in the
Main Information Display . When this
option is selected, a "complete" feed will be
sent to the front left/right "main" speakers,
and the subwoofer will receive the bass
frequencies under the frequency selected in
the next option setting on this menu, as
described below.
Configuring the DCR600 Receiver
11. When all speaker selections have been
made, press the Set Button
Buttons return to normal operation.

Adjusting the Output Levels

Output level adjustment is a key part of the
configuration process for any surround-sound
product. It is particularly important for a Dolby
on the Digital receiver such as the DCR600, as correct
on the outputs will ensure that you hear soundtracks in
their proper place with the proper directionality
and intensity.
IMPORTANT NOTE: Listeners are often
confused about the operation of the surround
channels. While some assume that sound
should always be coming from each speaker,
most of the time there will be little or no sound
in the surround channels. This is because they
are only used when a movie director or sound
mixer specifically places sound there to create
ambience or a special effect, or to continue
action from the front of the room to the rear.
When the output levels are properly set, it is
normal for surround speakers to operate only
on the
occasionally. Artificially increasing the volume
to the rear speakers may destroy the illusion of
an enveloping sound field that duplicates the
way you hear sound in a movie theater or con-
cert hall.
Before beginning the adjustment process, make
certain that all speaker connections have been
properly made. The system volume should be
set to the level that you will use during a typical
listening session. Finally, make certain that the
Balance Control
"12 o'clock" position.
To assist in making speaker configuration set-
tings, the icons in the Speaker/Channel Input
on the
Indicators change as the speaker type is
selected at each position. When only the center
.
icon box containing the abbreviation for the
speaker position is lit, the speaker is set for
"small. " When the inner box and the two outer
boxes with circles inside them are lit, the speaker
is set for "large. " When no indicator appears at
a speaker location, that position is set for
"none" or "no" speaker.
For example, in the following figure, the left
front and right front speakers are set for LARGE,
the center, left surround (LS) and right surround
(RS) speakers are set for SMALL, and a
subwoofer is set, as shown by the box with
the abbreviation "LFE", which stands for
"low-frequency effects. "
(Continued)
to
To adjust and calibrate the output levels, follow
these steps. For accurate calibration, it is a
good idea to make these adjustments while
seated in your favorite listening position:
1. Put the DCR600 in the Dolby Pro Logic mode by
pressing the Surround Mode Selector
the front panel, or by pressing the Surround
Mode Selector
PRO LOGIC appears in the Main
Information Display
Indicator
2. Press the Test Button
T-T FL 0dB will appear in the Main
Information Display
will flash once each second.
3. The test noise will immediately begin to
circulate in the speakers in a clockwise
rotation, pausing at each position for three
seconds. As the test noise rotates, the speaker
position will be shown in the Main Information
Display
NOTE: This is a good time to verify that the
speakers have been properly connected. As
is set to the center
the test noise circulates, listen to make
certain that the sound comes from the speaker
position shown in the Main Information
Display. If the sound from a speaker location
does NOT match the position indicated in the
display, turn the DCR600 off using the Main
Power Switch
wiring to make certain that each speaker is
connected to the correct output terminal.
4. After checking for speaker placement, let the
test noise circulate, and listen to see which
channels sound louder than the others. Using
the front left (FL in the display) speaker as a
reference, press the
on the remote or the Selector Buttons
on the front panel on each channel to begin to
bring them to the same level. Note that when
one of the buttons is pushed, the test noise
circulation will pause on the channel being
adjusted to give you time to make the
adjustment. When you release the button, the
circulation will resume after 15 seconds.
L C R
LFE
LS RS
on
on the remote, until
and the PRO LOGIC
lights up.
on the remote.
and the letters FL
.
and check the speaker
Buttons
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