ESC 333 Sub (serv.man9) - JBL Audio User Guide / Operation Manual. Page 13

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Surround
Use this mode for films
recorded using Dolby Digital
or Dolby Pro Logic Surround.

Phantom
This mode creates surround
sound from stereo recordings.
The center channel is not
used and the surround chan-
nels have a 20-ms delay.

3-Stereo Mode
Use this mode to play back
Pro Logic-encoded films when
you do not want the surround
channels to play.

Stereo
This mode plays a recording
in traditional two-channel
stereo.

The Test Tone is used to
calibrate the volume settings
of each of the speakers in the
ESC333. It is dependent on the
room where the system is set
up and the relative distances
and positions of each speaker
to the listening position. In
Dolby Digital mode, a static-
like noise will be heard
cycling, in order: left front,
center, right front, right 
surround, left surround, 
subwoofer. In modes other
than Dolby Digital, the sound
from the two surrounds will 
be coming at the same time,
since the surrounds in all
available modes, except in
Dolby Digital, are in mono.
When the Test Tone is heard
coming from a specific 
channel, pressing the
Adjustment +/– (11) buttons
will increase or decrease the
level of sound coming from
that channel. The display 
status-bar indicator (27) 

provides visual indication of
the adjustment as the adjust-
ment is being made. The
default adjustment level of 
0 dB is indicated by five status-
bar indicators illuminated. 

If adjustments are done in a
mode where a certain channel
is not available, the adjust-
ment step for that channel is
skipped. For example, in
Phantom mode, the center-
channel level cannot be
adjusted since Phantom does
not have a center channel. In
stereo, neither the center nor
the surround levels can be 
adjusted since Stereo does not
feature surround speakers or a
center speaker.

Using the remote control,
adjust each channel’s levels
until the volume of all the
speakers is the same during
the test. To make sure all
channels are properly adjusted,

do the test twice, once in
Dolby Digital (Dolby Digital is
automatically selected when
the ESC333 is connected to a
DVD player’s digital output,
that specific digital input is
selected, and the DVD player is
playing Dolby Digital-encoded
material) and once again in
Dolby Pro Logic.

Note: The Test Tone is used 
to calibrate the system 
to reproduce all program 
materials at the correct 
relative levels, as was deter-
mined by the recording engi-
neers. When listening to actual
surround-encoded program
material, the volume level 
of the surround channels is
generally lower than that of
the front channels. In fact,
virtually all of the dialogue
and a substantial number of
the effects in a movie are
reproduced through the center
channel.

ESC333 Simply Cinema OM  5/24/00  12:17 PM  Page 13