21
3.
-
HI
OUT
MODE: This selector switch allows configuring the mid-high
way output filter of the ISP-2022.
On the “HI” position, it will work as a high-pass filter, at the crossover
frequency selected before (LOW-HIGH FREQUENCY switch). For the DP-4, having
selected 90 indicates that the crossover frequency between the sub bass and
bass is 90 Hz.
At
the
position
“ALL”,
the
high
pass
filter
is
switched
off,
turning
the
mid-high
into
an
all-pass
output,
that
is,
it
delivers
a
linear
response
between 20 Hz and 20 kHz.
This position may be used when the mid-high and bass enclosures of the DP-4
system are flown, lowering the response frequency of the bass way down to 60
Hz.
4. - LOW SHIFT: Fine phase adjustment between both processor outputs. It
affects the sub bass way exclusively. This feature is especially useful when
the sub bass way has to be delayed with respect to the rest of the system.
Changing the adjustment of this control, you may fine-adjust the phase of
the sub bass until the sum with the bass is perfect.
¡ATTENTION!
It
is
not
a
matter
of
fine-adjusting
the
phase
by
ear,
but
through
the
aid
of
specific
measuring
equipment.
Failure
to
do
so
may
generate
a
phase
cancellation
at
the
crossover
frequency
of
the
affected
frequency ways.
5.
-
LOW
GAIN:
Gain
adjustment
for
the
sub
bass
filter.
Adjustable
to
values between –12 and +6 dB.
¡IMPORTANT! The settings delivered by the manufacturer assure the perfect
functioning
of
he
system.
Inadequate
manipulation
of
the
processor’s
parameters
may
result
in
a
loss
of
sound
quality
and
performance
of
your
live system.
6. - LED INDICATORS:
6. - CLIP: This Light Emitting Diode lights up when the input signal of
the processor is too high, producing high distortion levels at the output.
ATTENTION! It is important that this LED never lights up, since we are
being signalled that the processor output is cutting off the signal crest.
Under
these
conditions,
the
power
control
circuitry
will
not
function
correctly,
resulting
in
a
considerable
loss
of
quality
and
damage
to
the
loudspeakers.
7. - ALARM: This LED must be ON when turning on the system and OFF at the
moment the processor receives a signal. If, by any means, the LED does not
turn
off
when
receiving
a
signal,
you
should
check
for
a
problem
at
the
SENSE
input
(output
return
from
the
power
amplifier
output
to
the
processor).
This
would
mean
that
the
power
control
circuitry
is
not
functioning
properly,
with
the
consequence
of
possible
damage
to
the
loudspeakers.
8. - LIMIT: Under ideal working conditions this LED should stay off or,
in extreme cases, light up occasionally. If this last condition happens, we
are
being
told
that
we
are
reaching
the
limit
values
and
that
the
processor’s
limiter
circuits
are
starting
to
act,
protecting
the
speakers
from surges.
Содержание DP SYSTEMS
Страница 28: ...28 7 2 POLAR GRAPHS 1 HORIZONTALS 100Hz 200Hz 400Hz 800Hz 1KHz 2KHz 4KHz 8KHz 16KHz VERTICALS 100Hz 200Hz 400Hz...
Страница 29: ...29 800Hz 1KHz 2KHz 4KHz 8KHz 16KHz 20 30 DEGREES HORIZONTAL RESPONSE 10 DEGREES VERTICAL RESPONSE...
Страница 31: ...31 If you wish to have a more directional sound with less dispersion mount the system as indicated below...
Страница 37: ...37 1 More dispersion 2 Longer throw...
Страница 38: ...38 In case you use a larger number of sub bass enclosures with the same electronics Or...
Страница 39: ...39 More powerful systems for big events Or Also for bigger events...
Страница 40: ...40 Or also...
