Pioneer VSX-1120-K, Operating Instructions Manual

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Additional information 12
84
En
Chapter 12:
Additional information
Speaker Setting Guide
In o r de r to achieve an even bette r su rr ound effect, it is
im p o r tant to accu r ately p osition the s p eake r s and make
thei r volume and tone cha r acte r istics unifo r m so as to
finely focus the multi-channel sound.
The th r ee majo r elements in p ositioning the s p eake r s a r e
distance
,
angle
and
orientation
(the di r ection in which
the s p eake r s a r e p ointing).
Distance
: The distance of all the s p eake r s should be
equal.
Angle : The s p eake r s should be ho r izontally symmet r ical.
Orientation : The o r ientation should be ho r izontally
symmet r ical.
In most homes, howeve r , it is not p ossible to achieve this
envi r onment. Fo r the distance, on this r eceive r it is
p ossible to automatically co rr ect the s p eake r distance
elect r ically to a pr ecision of
1
/
2
inch using the Auto
MCACC Setu p function ( p age 35).
Step 1: Speaker layout and distance adjustment
Use s p eake r stands o r the like to make su r e the s p eake r s
a r e steady, and leave at least 10 cm (4 inches) f r om the
su rr ounding walls. Position the s p eake r s attentively so
that the s p eake r s on the left and r ight a r e at equal angles
f r om the listening p osition (cente r of the adjustments).
(We r ecommend using co r ds, etc., when adjusting the
layout.) Ideally all the s p eake r s should be equidistant
f r om the listening p osition.
Tip
• If the s p eake r s cannot be set at equal distances (on a
ci r cle), use the Auto MCACC Setu p s p eake r distance
co rr ection and Fine S p eake r Distance functions to
make them equalize the distance a r tificially.
Step 2: Adjusting the speaker height
Adjust the heights (angles) of the diffe r ent s p eake r s.
Adjust so that the f r ont s p eake r units r e pr oducing mid-
and high f r equencies is r oughly at the height of the ea r s.
If the cente r s p eake r cannot be set at the same height as
the f r ont s p eake r s, adjust its angle of elevation to p oint it
to the listening p osition.
Set su rr ound s p eake r 1 so that it is not unde r the height
of the ea r s.
Step 3: Adjusting the speaker orientation
If the left and r ight s p eake r s a r e not p ointing in the same
di r ection, the tone will not be the same on the r ight and
left, and as a r esult the sound field will not be r e pr oduced
pr o p e r ly. Howeve r , if all the s p eake r s a r e p ointed towa r ds
the listening p osition, the sound field will seem c r am p ed.
Testing by the Pionee r Multi-channel Resea r ch G r ou p
has shown that a good sense of sound p ositioning can be
achieved by p ointing all the s p eake r s towa r ds an a r ea
30 cm to 80 cm (12 inches to 31 inches) behind the
listening
p osition (between the su rr ound s p eake r s and
the listening p osition).
Howeve r , the sense of sound p ositioning can diffe r
acco r ding to the conditions in the r oom and the s p eake r s
being used. In smalle r envi r onments in p a r ticula r (when
the f r ont s p eake r s a r e close to the listening p osition),
with this method the s p eake r s will be p ointed too inwa r d.
We suggest you use this exam p le of installation as
r efe r ence when t r ying out diffe r ent installation methods.
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 75).
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 35) 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.
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