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5. Check the back speaker phasing:
Turn
the BACK
LEFT and
RIGHT
LEVEL controls fully clockwise,
and the FRONT
LEFT
and RIGHT LEVEL controls fully counterclockwise.
tf the back
amplifier has its own
volume
(or level} and balance controls,
set them
to their usual position.
Move
the back speakers so
that they are about 30cm
(one
foot) apart
and facing each
other.
Do likewise
as described
in Step 4.
After checking
the
back
speaker
phasing,
turn
the
FRONT
LEFT and RIGHT
LEVEL
controls fully clockwise.
.
6. Check
the front-back channel
phasing:
Make
sure
that
the
four speaker sound levels are at nearly the same,
and the
MASTER
VOLUME
control
is set to the
usua!
level.
Then,
mute either channel
by turning the LEFT (or RIGHT)
FRONT
and
BACK
LEVEL
controls
fully counterclockwise.
Position
the front and back speakers
as in Step 4.
Move the PHASE
INVERTER
switch to NORMAL
and INVERT, while listening to
the same
bass passage.
if there is less bass with the switch
set to NORMAL,
the front and back amplifiers were incorrectly
phased, so set the switch
to INVERT.
However,
if the
bass
appears to decrease with the switch set to INVERT, the ampli-
fiers were
correctly phased,
and you should
leave the switch
set to NORMAL.
Return the speakers to their proper
location.
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