Pioneer SC-LX71, Руководство по эксплуатации

Страница: 107 / 134

Additional information
15
107
En
Tip
• When adjusting the o r ientation of the s p eake r s, tu r n
the s p eake r s with the cente r of the s p eake r s’ baffle
su r faces as the axis so that the s p eake r s’ cente r
p ositions do not change.
Exam p les of r ecommended s p eake r layouts based on the
ITU-R (Fig.1) fo r systems with mo r e than 5.1 channels
• Fo r 7.1-channel systems
Step 4: Positioning and adjusting the subwoofer
Placing the subwoofe r between the cente r and f r ont
s p eake r s makes even music sou r ces sound mo r e natu r al
(If the r e is only one subwoofe r , it doesn’t matte r if it is
p laced on the left o r r ight side). The low bass sound
out p ut f r om the subwoofe r is not di r ectional and the r e is
no need to adjust the height. No r mally the subwoofe r is
p laced on the floo r . Put it in a p osition at which it will not
cancel out the bass sound out p ut f r om the othe r
s p eake r s. Also note that p lacing it nea r a wall may r esult
in sym p athetic vib r ations with the building that could
excessively am p lify the bass sound.
If the subwoofe r must be installed nea r a wall, p lace it at
an angle so that it is not p a r allel to the wall su r face. This
can hel p r educe any sym p athetic vib r ations, but
de p ending on the sha p e of the r oom this could r esult in
standing waves. Howeve r , even if standing waves a r e
gene r ated, thei r influence on the sound quality can be
pr evented using the Auto MCACC’s standing wave
cont r ol function ( p age 48).
Tip
• Setting the subwoofe r with the line connecting the
woofe r (middle and low f r equency r e pr oduction
units) sections of the cente r and f r ont s p eake r s
p a r allel to the subwoofe r ’s f r ont su r face achieves a
mo r e natu r al, p owe r ful bass sound.
Step 5: Default settings with the Auto MCACC
Setup (auto sound field correction) function
It is mo r e effective to p e r fo r m the Auto MCACC Setu p
( p age 9) pr ocedu r e once the adjustments desc r ibed
above have been com p leted.
Tip
• The distance to the subwoofe r may be slightly la r ge r
than the distance actually measu r ed with a ta p e
measu r e, etc. This is because this distance is
co rr ected fo r elect r ic delay, and is not a pr oblem.
The cent r al axes conve r ge 30 cm to 80 cm
behind the listening p osition.
Fig. 2
C
L
R
SL
SR
Fig. 3
Cente r of r otation
Rotation
The cent r al axes conve r ge 30 cm to 80 cm
behind the listening p osition.
C
L
R
SL
SR
SBL
SBR
Fig. 4
C
L
R
SW
Set the subwoofe r p a r allel to the
connecting line.
(Note that it will be too close if it is
p laced di r ectly on the line.)
SCLX81_71.book 107 ページ ２００８年７月２５日 金曜日 午後３時１分