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Theater Room Design Basics (4):
Equipment Placement in the Home Theater
A primary
consideration in any home theater room design is equipment placement.
Yet, few realize that just as important as which components to buy, is deciding where to put
them.
The correct placement of system components
is a major contributor towards achieving that much-desired immersive
experience in the home theater.
This applies to all home theater
equipment, not just the speakers or that big screen TV. Even a flashing LED
from a DVD player or an AV receiver placed just under the TV screen can turn
out to be distracting during movie watching.
Note: Though this article concentrates mainly on
the dedicated home theater room design, yet most of the principles discussed
still apply
in a shared environment.
Main
topics covered in this article:
Correct
Equipment Placement - Why is it so important in any home
theater room design?
As stated earlier on, the correct
placement of the various home theater components with respect to each
other as well as within your room, is a major contributor towards achieving that much-desired magical experience in home entertainment.
It is true that it is not always possible to
opt for the best equipment placement. Under certain circumstances, e.g. when
installing a home theater in a shared environment such as a living room, the
respective room features will eventually dictate where the various home
theater components can go. Yet knowing the basic requirements for an
effective home theater room design is important as it can help improve the
end-result in any home theater
experience.
Detailed
planning at an early stage of your home theater room design is essential. Do
not be tempted
to proceed with a home theater installation before having done so. Inappropriate planning will not only affect your
home theater experience, it may even lead to costly mistake.
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Home Theater Equipment Location
While the info detailed below
applies irrespective of equipment brand, yet the discussion that follows should be taken in parallel with the information
provided by the respective equipment manufacture.
TV / Home Theater Screen Placement:
A first step when planning your home theater room design should be to identify the
correct placement of your big screen TV - the main center of attraction in
any home theater. The rest of the equipment should
then follow.
Proper placement of a big screen
television or home theater screen is mainly dependent on the screen size, available viewing distance, ambient light conditions, and the
layout of
your home theater seating. The relevant details are further discussed in
the following home theater design guides appearing on our website:
The
principles discussed in these guides apply independent of whether your big screen display is a direct-view
e.g. LCD or Plasma TV, or a projection display such as a rear projection TV. However, in the case of a
front
projection setup,
there is a further point to consider.
For the
best results when planning your home theater room design, the
projection screen placement should be such as to allow
for the positioning of the center speaker behind the projection
screen. This will help to better affix the dialog with the movie action,
while yielding better spatial definition in home theater sound.
As
expressed in our Projector Screen Guide,
one of the main functions of a good quality home theater screen is to support the sound
within the home theater room. The ideal screen material is
one that incorporates micro perforations to present an acoustically
transparent surface for the center-channel speaker when the latter is placed
behind the screen.
However, for this whole setup to
work effectively, it is necessary to maintain the correct position of the center speaker with
respect to the main front left and right speakers. This means the
placement of the center speaker behind the screen should be such that the front
right, front left and the center channel speakers should all be set at
equal distance from the main viewing position. More information on speaker placement
is available in our Home Theater
Speaker Placement Guide.
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Projector
Location:
Modern LCD and DLP projectors
employ zoom lenses, keystone image correction, and even vertical and
horizontal shifts of the lens assembly itself inside the projector housing. These
features give you a certain level of flexibility when planning the projector
position
during your home theater room design.
Zoom lenses allow you to adjust the image size to
the required dimensions over a wider range of projector to screen distance.
The 'keystone image
correction' gives you the possibility to project images with the correct geometry even when
the projector is not in line
with a normal drawn to center the projection screen surface. Keystone correction
is measured as
the number of degrees off center the projector can be positioned while still
projecting an image with the correct geometry.
Most projectors use 'digital' keystone correction - meaning that
geometric correction is achieved by manipulating the image. Unfortunately, this
leads
to loss of resolution and detail and should
ideally be avoided
at all cost if you want the best picture.
Use instead the vertical and horizontal lens shift mechanism if
available - no distortion will result in this case since it is the
lens assembly itself that is moved inside the projector housing to adjust the image
position. Alternatively, relocate the projector.
Possible projector locations include ceiling mounted, on a floor stand between
the front row of seats, or in a cabinet at the rear.
Should space allow,
plan for a dedicated projection
boot in your home theater room design; this would be ideal, as it will mask any annoying noise from the projector
cooling fan during periods of silence.
Finally, ensure that you
remain within the supported
projector-to-screen
distance range for the required screen size, and keystone
image correction or lens tilt support; it would be difficult to relocate
the projector once you complete the overall home theater room
design.
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Home Theater Speaker Placement:
Speaker placement is an integral part
in any home
theater room design process. The
correct placement of home theater speakers plays a key role in creating
a seamless 'enveloping' surround sound so important in the overall home theater experience.
For
the relevant details, please refer to our
Home Theater Speaker Placement
Guide. There you will find full details with respect to the different
speaker placements for both movie watching and for music listening. The
points listed below just highlight the main issues you need to take note of
when planning your home theater room design:
-
Center
Speaker: This mainly carries the dialog part. Hence it should be placed
just behind but close to the center of the projection screen surface as detailed above.
Alternatively, place on
top or just underneath your TV in case of a direct-view or rear-projection
television.
-
Front
left and right speakers: The main speakers should be placed one on
opposite side of your display and equally distant from your main viewing
position. Furthermore, the distance between the viewing position and the
main speakers should be equal to the distance between your viewing
position and the center channel.
-
Surround
speakers: These are best located on the sidewalls of your home theater
room, just behind your main listening position. In the case of a 6.1 or 7.1-channel system,
the additional back-channel speakers should preferable be wall-mounted on
the back wall two to three feet above your ear-level when seated.
-
Sub-woofer:
There is no fixed position here since low bass frequencies are
omni-directional. However, it would be appropriate to experiment a bit to
determine the best position since placing the sub-woofer near a wall or
close to a corner will enhance the overall bass response.
No home theater room design is be complete without
planning the speaker wiring details. Once you plan your speaker placement, measure the distances - add
some extra per
speaker to allow a margin of error. For more information, check
our Home Theater Wiring Guide.
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A/V Equipment
location:
This home theater room design article
would not be complete without mentioning something on audio video equipment
placement.
Home theater incorporates a full range
of components - DVD player,
Audio/Video receiver, satellite or cable TV set-top-box, cassette deck, power protection equipment/UPS,
etc. These will also need a home.
Many would simply position their
equipment close to their projection screen or big screen TV. This is a big mistake. Most of these components will have their front
panels filled with led displays; the colored light from these displays can
be distracting during a movie.
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Equipment Racks:
When
planning your home theater room design, consider to mount your equipment
on a suitable equipment rack
either on the side or back wall. Whatever option you choose, ensure that you
still have full remote control access to your
A/V equipment from the main viewing position. This will enable you to
adjust your home theater system for best performance.
Alternatively, if space permits, use
a media closet to house your equipment rack and that possibly can also serve
as a projection booth.
In this case, a
remote with RF support such as the
Logitech Harmony 890
may be required to control all your gear. A small LCD
preview monitor may also prove useful in this case.
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O'Sullivan - Audio Equipment Stand (Brushed Nickel) |
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For more information on
audio video component enclosures and system racks, please check our
Guide to AV Equipment Racks. |
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Last Updated on:
14th
April 2007
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