Atlantic Technology System 4200 Manuel d'instruction - Page 8
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System Setup
System Setup
Bass Management
Some older surround sound decoders and receivers offer a choice of "Nor-
mal" or "Wide-band" modes for the center channel speaker. The Model 4200
C is designed to be used in the Normal mode. Additionally, digital processing
multi-channel systems provide a Bass Management menu, which typically
requires you to select between "Small" or "Large" speakers during system
set-up. Since these systems have been designed to work with a dedicated
subwoofer, please set all the speakers in System 4200 to Small.
HF ENERGY
-
REVERBERANT
+ DAMPED ROOM
0 THX / AVERAGE
BOUNDARY
ON
THX / NORMAL
Manufactured under license from THX Ltd. THX, THX Ultra2 and
THX Select are registered trademarks of THX Ltd.
Operation of the Rear Panel Controls
on the LCR Speakers
HF ENERGY
-
REVERBERANT
+ DAMPED ROOM
0 THX / AVERAGE
BOUNDARY
reflective (hard) and absorptive (soft) surfaces. The Reverberant position
ON
is designed for rooms with an abundance of reflective surfaces like hard-
wood or tile floors, glass walls, etc. It decreases the high frequency output
of the speaker to reduce excess HF energy that builds up in live rooms. The
THX / NORMAL
Damped position brings the tweeter's output slightly above flat response to
compensate for overly absorbent rooms with lots of soft surfaces. Speak-
ers in overly damped rooms can sound dead and lifeless unless compen-
sated.
Manufactured under license from THX Ltd. THX, THX Ultra2 and
THX Select are registered trademarks of THX Ltd.
INPUT
-
+
This control
High Frequency Energy
changes the tilt or roll-off slope of the
tweeter. It has been designed to help com-
pensate for different room acoustics. The
INPUT
-
+
THX/ Average position is intended for
rooms with a reasonable combination of
HF ENERGY
-
REVERBERANT
+ DAMPED ROOM
0 THX / AVERAGE
BOUNDARY
ON
THX / NORMAL
trols, sit in the prime listening position and have someone switch between
the compensation choices, using well recorded dialogue or musical instru-
ment recordings. Choose whichever switch position sounds most natural
and real to you.
Manufactured under license from THX Ltd. THX, THX Ultra2 and
NOTE: Although these controls have been designed to compensate
for various acoustic room anomalies, we recommend that you try
them to hear the difference that they make in the sound of the sys-
tem. For any number of reasons, you may decide that you prefer them
set in a particular manner inconsistent with your room's acoustics,but
Figure 4
which sounds best to you. Experiment. It will be worth it.
Dipole/Bipole Operation of the SR Speakers
BIPOLE
Bipole mode is easily accomplished using a toggle switch conveniently
located under one of the speaker's grilles. Please note that the vast majority
of the time in movies and TV broadcasts the surround speakers are called
upon to reproduce the environmental sounds that are used as cues to help
get you immersed in the scene on the screen. Once the surround speakers
are properly positioned in the listening area, we recommend that you begin
with the dipole mode, as this usually delivers the most involving and believ-
able surround performance in most situations. However, as noted above, feel
free to experiment with both switch positions.
System 4200 High Performance Loudspeakers
INPUT
-
Boundary Compensation
to adjust the lower frequency output of
the speaker to compensate for the typical
sound colorations caused by placing the
speaker close to a TV screen or building it
into a wall unit or cabinet. To set these con-
THX Select are registered trademarks of THX Ltd.
In Dipole mode the 4200 SR's
produce ambience with mini-
mal localization (best for most
DIPOLE
movies and video soundtracks),
and more localizable sound in
the Bipole mode (preferred
for some music recordings).
Switching between Dipole and
+
Use this switch