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As for placement height, place front left and right loudspeakers on either side of the
picture source so that their tweeters are not more than 24 inches above or below
the center-channel loudspeaker’s tweeter (see Figure 2 on page 6).
NOTE: DO NOT PLACE ANY STAGEFRONT LCR OR FX LOUDSPEAKER TOO CLOSE TO A DIRECT-VIEW
TV MONITOR, AS IT MAY CAUSE PICTURE DISCOLORATION. IN GENERAL, TRY TO KEEP IT AT LEAST 24
INCHES AWAY FROM THE TV. WITH LARGER CRT SCREEN SIZES, TEST THE PLACEMENT DISTANCE FOR
PICTURE DEGRADATION BEFORE INSTALLATION.

THE BOUNDARY EFFECT

Placing a loudspeaker in a cabinet, as is likely for these models, or a corner
can powerfully affect the way a listener perceives bass response. Known as
the boundary effect, placing loudspeakers close to a wall/ceiling boundary, in a
cavity in a cabinet or near a corner wall boundary will emphasize certain bass
frequencies, while canceling others. This effect can make the loudspeaker sound
excessively boomy and inaccurate to some listeners, while to others it just seems
like more bass sound.
As a good rule-of-thumb, if you like listening to your current pair of loudspeakers
with the bass turned up, you’ll enjoy corner placement. However, if you listen
with the tone controls at neutral, try keeping the loudspeakers at least 2 or 3 feet
from the boundaries of the room. If this is not possible, the Pro1870LCR and
Pro2870LCR models feature a Boundary Compensation control to help correct any
issues that this type of placement can cause.

PLACING THE STAGEFRONT LCR AS THE CENTER-CHANNEL LOUDSPEAKER

The center-channel loudspeaker is the workhorse in a home theater system. It
handles all of the critical dialog and is vitally important in creating the illusion of
sounds emanating directly from the picture. Here are some tips for obtaining
optimum center-channel performance:
■ In a typical installation, place the loudspeaker horizontally, directly above or below
the television or projection screen. Try to ensure that the loudspeaker is not placed
too high relative to the left and right loudspeaker, as shown in Figure 2.
■ The Pro LCR models feature a Midrange/Tweeter pod that can be rotated to
accommodate horizontal installations. If you mount one of these models horizontally,
please remove the screws that hold this pod in place, rotate the pod ninety degrees
so that the tweeter is above the midrange and reinstall the screws to reattach the
pod to the loudspeaker as shown in Figure 3.
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