Center Mode; Delay Time - JBL ARC CINEMA II User Manual

Test Tone
For proper Dolby Pro Logic
operation, a test tone is used
HALL
to calibrate the volume set-
tings of the speakers. A noise
will be heard cycling, in order,
from the front left, center,
right and both surround
speakers.

Center Mode

Hall
CENTER TEST
Delay
HALL BYPASS
MODE TONE
Test Tone
Press "Center Mode" on the or the remote to switch
receiver between "Normal," "Wide" and
"Phantom."

Delay Time

The delay control allows the
Hall
user to set the surround delay
Delay
between 15 and 30 milli-
seconds. The best setting will
Test Tone
depend on the distance
between the main listening
area and the front speakers, as
well as the distance between
the main listening area and
the rear speakers.
Push "Delay" on the remote
The chart on the right shows
until "Delay" appears in the
the recommended settings.
display and the corresponding
time is lit.
Using the remote control, push
"Test Tone." Then adjust the
CENTER TEST
BYPASS
Center and Surround levels
MODE TONE
until the volume of all the
speakers is the same during
the test.
Note: The test tone is used to
calibrate the performance of
the system. When listening
to an actual recording, the
Normal: Select this mode
3-Stereo Pro Logic
if you use a small center
Cent Mode Bypass
speaker. The bass sound of the
center channel is reproduced
Center Level Volume
from the front left and right
Rear Level
speakers because the small
speaker cannot produce
Surround
enough bass.
Wide: Select this mode if you
use a medium-to-large center
speaker. The bass sound is
reproduced from the center
speaker.
3-Stereo Pro Logic Hall 3-Stereo
Cent Mode Bypass Delay Cent Mode
Center Level Volume Test Tone Center Level
Rear Level Rear Level
Surround Surround
Push "Delay" on the remote
to cycle through the delay
times.
volume level of the surround
channels is generally much
lower than that of the front
channels. In fact, when
listening to a movie, virtually
all of the dialogue and a sub-
stantial number of the effects
are reproduced through the
center channel.
Phantom: Select this mode
if you don't use a center
speaker. The center speaker's
sound is reproduced from the
front left and right speakers.
40
35
30
Pro Logic
25
Bypass
20
Volume
15
10
5
0
0 5 10
Distance (in feet) From Front Speakers
Preferable
– 14 –
Center-Channel Volume
Hall 3-Stereo Pro Logic
Delay Cent Mode Bypass
Test Tone Center Level Volume
Rear Level
Surround
Push "Center Level" or
until the volume of the center
speaker is the same as that of
the left and right speakers.
15 20 25 30 35 40
Acceptable
Rear-Channel Volume
Hall 3-Stereo Pro Logic
Delay Cent Mode Bypass
Test Tone Center Level Volume
Rear Level
Surround
Push "Rear Level" or
until the volume of the rear
speaker is the same as that of
the left and right speakers.
Power
Tuning Auto
1 2 3
Tuner
4 5 6 7
Memory
8 9 0
P.Scan FM/AM
CD TAPE AUX/TV Tuner
VCR1 VCR2 Sleep Mute
Hall 3-Stereo Pro Logic
Delay Cent Mode Bypass
Test Tone Center Level Volume
Rear Level
Surround