Owner's Manual
Setting
Loudspeaker
Sizes
and
Levels
If
you are
not
using a subwoofer: Set the Front speakers
to
'Large'. Set
the
'Subwoofer' option on the processor
to
'
Off
or
'No
'.
The Front
channels
will
now
receive all the system bass.
If
you are using a subwoofer:
When
set
to
'Small' all
the
system bass
will
go
into
the
subwoofer.
If
you choose 'Large' the Front channel bass
will
be
reproduced from
the
Front speakers. Follow the instructions on this page for suitable size and crossover settings.
Once
the
loudspeaker settings have been finalised,
put
the
A/V
amplifier into its 'Test'
mode
(see instructions supplied with your processor).
Adjust the level
of
each channel until
all
channels are reproduced
at
equal loudness.
On
some programme material
the
surround channel may seem
lower
than the front. Do
not
readjust this level. You may, however. need
to
adjust
the
subwoofer
output
level
Avoid setting
too
high a level
or
you
will
swamp
the
sound with bass. This can
be
tiring
to
listen to. and may limit
the
subwoofer's ability
to
respond
to
large bass transients. You should also set a sensible level going into
the
subwoofer from
the
A/V
processor.
The subwoofer
volume
control should
be
between
12
o'clock and 3 o'clock.
Delay
and
LFE
Settings
Many
A/V
processor feature delay settings. The purpose
of
delay
is
to
enable surround and dialogue information
to
arrive at the listener's ears
at
the
same time as
the
front channels. even when
the
listening seat is in a non-ideal position.
On
some processors. this can
be
achieved
by
setting
the
distance from
the
listening position
to
each speaker.
but
other system
allow
only a
time
delay setting.
Rear Delay: If
the
listening position
is
equidistant from the front and rear speakers, set a
low
delay setting. The closer
the
listener is
to
the
rear
speakers this higher
the
delay setting used should
be
.
Centre Delay:
If
the centre speaker is level with (or slightly behind) the front speakers. set the delay
to
zero.
If
the
centre speaker
is
forward
of
the
front speakers, increase
the
delay.
LFE:
In
the
cinema
the
low
frequency effects channel
is
an extra bass channel with its
own
subwoofer.
In
domestic systems
the
LFE
channel
typically feeds into the subwoofer. Where no subwoofer
is
used.
the
LFE
signal is combined with the front channels and sent
to
the
front
speakers.
When
you set
the
LFE
level at your
A/V
processor, use care as
powerful
low
frequencies can overload domestic loudspeakers.
If
you
hear popping or thumping noises coming from
the
front loudspeakers or subwoofer. immediately turn
the
A/V
processor's
volume
level
down
and then
lower
the
LFE
level. This should cure
the
problem.
If
it does not.
lower
the
volume
level
at
the subwoofer (if you are using one) until
the
problem disappears.
Phase:
Please read
the
relevant sections
of
your
A/V
amplifier manual and familiarise yourself with
the
various issues.
If
you are unsure, consult
your dealer for help. A
home
theatre system should have a precise front stage, a diffuse rear stage and
good
localization
of
dialogue.
If
the
colours on the loudspeaker terminals
do
not
correspond with those on the amplifier,
the
sound
will
appear poorly focused
or
'
out
of
phase'. For
this reason it
is
essential that the speakers are connected according
to
the
wiring diagrams
in
this manual.
Connecting loudspeakers correctly
(in
phase) is essential whether the system is stereo or multichannel. This
is
especially important
if
you are bi-
wiring -
if
only one
element
in
a bi-wired system
is
incorrectly connected (out
of
phase), the effects can
be
very noticeable
yet
hard
to
pinpoint.
Troubleshooting
Before investigating a problem, always
switch
off the
system
at
mains
.
If
your system
is
not
working properly please
work
through this checklist before returning
the
unit
to
your dealer.
Symptom
Possible Cause
No
Sound System
not
switched on: Speaker cables shorting terminals out: Wrong source selected
Sound lacks bass
content
Subwoofer
not
switched on
Lack
of
bass reproduction
Subwoofer
phase incorrect: Subwoofer crossover
control
too
lo
w
Excessive bass distortion
at
low
volumes
Subwoofer
set
to
high:
LFE
level
set
too
high: Subwoofer incorrectly wired
Excessive
or
distorted bass
at
high levels System level set
too
high: Bass
control
set
too
high: Subw
oofer
too
close
to
room corners
Distorted
I rattling sound at high levels System level
set
too
high; Objects
too
close
to
subwoofer
Popping
or
thumping
from
the
subwoofer
System level set
too
high; Subwoofer level
set
too
high:
LFE
level
set
too
high
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