9
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2-Channel Operation Wiring Configuration Diagram
()
(
J::
..
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..
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Tuning The Amplifier -
Front
or
Rear
Sp_e_ak_e_'_s
_
6) Input Sensitivity Control
Slowly rotate the control clockwise (refer
to
the
diagram
on page
5)
until
maximum
undistorted playing level is
heard
from
the speakers. Listen closely
for
bottoming
from
the speakers. If detected, rotate the input sensitivity
control counterclockwise until it
is
eliminated.
7) Crossover Controls
To
achieve higher undistorted playing levels
from
the main speakers, the highpass crossover
must
be
engaged.
Rotate the crossover control
fully
clockwise (refer
to
the
diagram
on page 5). The highpass crossover point is
now
set at 350Hz. Rotate "Q-Tune'·" Control fully counterclockwise. Move crossover switch
to
the right (ON) position.
Slowly rotate the
input
sensitivity control clockwise until
maximum
undistorted playing level is heard
from
the
speakers. Listen closely
for
bottoming
from
the speakers. If detected, rotate the input sensitivity control counterclock-
wise until
it
is eliminated.
Slowly
rotate the highpass crossover control counterclockwise while listening
for
bottoming.
You
are lowering the crossover point,
which
means
that
more bass signal is being sent
to
the speakers. If
bottoming is detected, rotate the input sensitivity control counterclockwise until
it
is eliminated and/or rotate the
Highpass crossover control clockwise to raise the crossover point.
8)
Q-Tune'M
Control
Once the highpass crossover point has been determined, use the Q-Tune'· control (refer
to
the
diagram
on page
5)
to increase the bass information centered around the crossover point.
Setting the Q-Tune'· control is done in conjunction
with
setting the levels on the input sensitivity and highpass
crossover frequency controls.
You
may
find while setting the Q-Tune'· that over-excursion
may
be
detected in the
front speakers; lowering the
Q-Tune'M
input sensitivity
or
raising the highpass crossover point will eliminate this.
Minor
adjustments
to
each setting are required
to
fine-tune the system.
Setting the Q-Tune'· is asubtle process. It is recommended that the Q-Tune'· setting be left in the
0.7
position and
adjusted
only
after the
input
sensitivity and highpass crossover ranges are known. Small adjustments
to
the
Q-Tune""
setting are all that are required
to
fine-tune the system.
