AVR 235 OM 8/30/04 9:18 AM Page 16
SYSTEM CONFIGURATION
When all audio, video and system connections havedeprive you of the benefits of 7.1-channel surround
been made, there are a few configuration adjustmentsmodes, such as Logic 7, but will also interfere with the
that must be made. A few minutes spent to correctlyfunctioning of EzSet speaker calibration, as described
configure and calibrate the unit will greatly add to youron page 23. It may also put undesirable strain on the
listening experience.surround back amplifier circuits and power supplies.
Speaker Selection and PlacementSubwoofers produce nondirectional sound, so they
The placement of speakers in a multichannel homemay be placed almost anywhere in a room. Actual
theater system can have a noticeable impact on theplacement should be based on room size and shape
quality of sound reproduced.and the type of subwoofer used. One method of find-
A) Front-channel speaker installation with direct-view
ing the optimal location for a subwoofer is to begin by
TV sets or rear-screen projectors.
No matter which type or brand of speakers is used,
placing it in the front of the room, about six inches
the same model or brand of speaker should be used
from a wall, or near the front corner of the room.
TV or Projection Screen
for the left front, center and right front speakers. This
Another method is to temporarily place the subwoofer
creates a seamless front soundstage and eliminates
at your normal listening position, and then walk
the possibility of distracting sonic disturbances thatLeft FrontRight FrontCenter Front
Speakeraround the room until you find a spot where the sub-
SpeakerSpeaker
occur when a sound moves across mismatched
woofer sounds best. Place the subwoofer in that spot.
front-channel speakers.
You should also follow the instructions of the sub-
wooferOs manufacturer, or you may wish to experi-
Speaker Placement
ment with the best location for a subwoofer in your
Depending on the type of center channel speaker in
listening room.
use and your viewing device, place the center speaker
either directly above or below your TV, or in the centerSystem Setup
behind a perforated front-projection screen.
Once the speakers have been placed in the room and
connected, the remaining steps in the setup process
Once the center channel speaker is installed, position
are to program the AVR 235Os bass management sys-
the front left and front right speakers so that they are
tem for the type of speakers used in your system,
as far away from one another as the center channel
No more than 6 feet when rear-mounted speakers are usedcalibrate the output levels, and set the delay times
speaker is from the preferred listening position. Ideally,Rear-Wall Mounting
used by the surround sound processor.
the front channel speakers should be placed so that
their tweeters are no more than 24" above or belowB) Rear speaker mounting is an alternate location for
You are now ready to power up the AVR 235 to begin
the tweeter in the center channel speaker.5.1 systems. It is required for 7.1 operation.
these final adjustments.
Depending on the specifics of your room acoustics
Rear surround speakers are required when a full 7.1-1. Make certain that the AC Power Cord ? is
and the type of speakers in use, you may find that
channel system is installed, and they may also befirmly inserted into an unswitched AC outlet. To
imaging is improved by moving the left front and right
used in 5.1-channel systems as an alternative mount-maintain the unitOs safety rating, DO NOT substi-
front speakers slightly forward of the center channel
ing position when it is not practical to place the main tute the power cord for one with lower current
speaker. If possible, adjust all front loudspeakers
surround speakers on the sides of the room. Speakerscapacity.
so that they are aimed at ear height when you are
may be placed on a rear wall, behind the listening
seated in the listening position.2. Press the Main Power Switch 1 in until it
position. As with the side speakers, rear surrounds
latches and the word OOFF� on the top of the
should be located so that the bottom of the cabinet is
Using these guidelines, youOll find that it takes some
switch disappears inside the front panel. Note that
at least two feet higher than the listenersO ears. The
experimentation to find the correct location for the front
the Power Indicator 2 will turn amber,
speakers should be no more than six feet behind the
speakers in your particular installation. DonOt be afraid to
indicating that the unit is in the Standby mode.
rear of the seating area.
move things around until the system sounds correct.
Optimize your speakers so that audio transitions across3. Remove the protective plastic film from the front-
If dipole-type speakers are used on either the side or
the front of the room sound smooth, and sounds frompanel lens. If left in place, the film will affect the
rear walls of the room, please note that if there are
all speakers appear to arrive at the listening position atperformance of your remote control.
arrows on the speakers they should face the front of
the same time (without delay from the center speaker
the room for the side speakers, or toward the center
4. Install the three supplied AAA batteries in the
compared to the left and right speakers).
of the wall for the rear speakers.
remote as shown. Be certain to follow the (+)
When the AVR 235 is used in 5.1-channel operation,and (�) polarity indicators that are on the top of
It is appropriate to configure the AVR 235 for either
the preferred location for surround speakers is on thethe battery compartment.
5.1- or 7.1-channel operation, but not for 6.1 chan-
side walls of the room, at or slightly behind the listen-
nels. When 6.1-channel program material or a 6.1-
ing position. In a 7.1-channel system, both side sur-
channel processing mode is in use, material for the
round and back surround speakers are required. The
surround back channel will be outputted simultaneously
center of the speaker should face into the room.
through both the Surround Back Left and Right
Speaker Outputs ?. Connecting only one loud-
speaker to these speaker terminals will not only
16 SYSTEM CONFIGURATION |
ACEC
