Harman Kardon CIT25 Owners Manual - Page 7

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17 18 19 20 26 27 28 129 30 31 32 33 34 35 2 Sound imbalances between left and right channels can be caused by speaker placement, listening room conditions and even some improperly recorded musical sources. For example, your listening position may be nearer one speaker than the other. Use the BALANCE control (13) to concurrently change left and right output volumes and create a more balanced musical image between the speakers. 45:,:fff.01.0g. ink A remote control muting circuit can be used to reduce the sound level by 20dB. When the remote MUTE button is pressed, the front panel MUTE INDICATOR (14) illuminates. The muting feature is very convenient for lowering the volume level temporarily (for instance, to answer a phone call or cue a record) without disturbing the original setting of the master VOLUME control (15). '4, " • .11 Stereo headphones may he plugged into this jack for private listening, The output volume is changed by the master VOLUME control, either manually or from the remote. All of the controls discussed so far are also found on the Citation 25 handheld remote control unit. In addition, nineteen more controls are provided behind a flip-down panel on the front of the preamplifier. While each has an important function, you will not need to use them as often, so they have been concealed for simplicity and to enhance the appearance of the Citation 25. 'C a," 2kIlz Delenl 202Ile Ale 11. 61, VLHI „.. 09,3 Turnovor ,CME Ucrmoll See Figure 3 Citation 25 Flip-Down Panel Press in and release the top of the flip-down panel to open. 21 22 r,nZ Scare, Record l- -1 I ) l-- I r -- 1 F- 1 I A/V1 A/2 23 24 25 one trots. As was previously noted, the Citation 25 separates the functions of tone frequency turnover and amount of boosticut for added flexibility. The BASS (17) and TREBLE (20) knobs control the amount of effect (plus or minus 10dB) provided by the 3-position TURNOVER slide switches (18 & 19). Both treble and bass TURNOVER switches have a central position marked DEFEAT. When set at this position, the adjacent BASS and TREBLE rotary knobs will have no effect. This provides an excellent method of assessing "before" and "after" tone control adjustments quickly. Simply return the TURNOVER switches to the DEFEAT position several times as you make bass and treble adjustments to compare their effect to the "tlat", unequalized sound. The Citation 25's tone control system is primarily recommended as a method of gently correcting tonal deficiencies (or overabundances) in program material. Contrary to popular belief, many recordings receive arbitrary equalization during recording, mixdown and mastering, according the widely varying tastes of the engineer, producer and mastering technician. Thus an overly shrill or "hoomy" recording may be made more listenable with a slight decrease in treble and bass, respectively. An older record lacking in low bass may be enhanced. An indistinct vocal may be made more clear by relatively "boosting" the midrange through the reduction of both treble and bass controls, While the Citation 25 tone controls may also he used to correct for overall room and speaker deficiencies, that is not their primary purpose. It is recommended that you explore alternatives such as speaker placement, adjustment of speaker level controls, acoustic room treatments, etc. so that the position of the Citation 25 tone controls may be left in their DEFEAT position at most times. The PHASE-CORRECT LOUDNESS (21) circuit provides a special fixed equalization curve which compensates for the ear's decreased sensitivity at low listening levels. When using your system for background music, engage this button to restore frequency balance. As mentioned in the introduction to this manual, the Phase-Correct Loudness circuit is unique both in its equalization curve (flat over 400Hz, +3dB at 200Hz) and in its ability to maintain phase accuracy throughout the midrange portion of the sound spectrum. Even if you have developed an understandable aversion to "loudness" buttons in the past, you are urged to try the Citation 25's new approach to low frequency psychoacoustic sound enhancement.

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2
Sound
imbalances
between
left
and
right
channels
can
be
caused
by
speaker
placement,
listening
room
conditions
and
even
some
improperly
recorded
musical
sources.
For
example,
your
listening
position
may
be
nearer
one
speaker
than
the
other.
Use
the
BALANCE
control
(13)
to
concurrently
change
left
and
right
output
volumes
and
create
a
more
balanced
musical
image
between
the
speakers.
45:,:fff
.
01.0g.
ink
A
remote
control
muting
circuit
can
be
used
to
reduce
the
sound
level
by
20dB.
When
the
remote
MUTE
button
is
pressed,
the
front
panel
MUTE
INDICATOR
(14)
illuminates.
The
muting
feature
is
very
convenient
for
lowering
the
volume
level
temporarily
(for
instance,
to
answer
a
phone
call
or
cue
a
record)
without
disturbing
the
original
setting
of
the
master
VOLUME
control
(15).
'4
, "
.
1
1
Stereo
headphones
may
he
plugged
into
this
jack
for
private
listening,
The
output
volume
is
changed
by
the
master
VOLUME
control,
either
manually
or
from
the
remote.
All
of
the
controls
discussed
so
far
are
also
found
on
the
Citation
25
handheld
remote
control
unit.
In
addition,
nineteen
more
controls
are
provided
behind
a
flip
-down
panel
on
the
front
of
the
preamplifier.
While
each
has
an
important
function,
you
will
not
need
to
use
them
as
often,
so
they
have
been
concealed
for
simplicity
and
to
enhance
the
appearance
of
the
Citation
25.
17
'C
a,"
18
Delenl
19
2kIlz
202Ile
61,
Ale
11.
20
09,3
Turnovor
,CME
26
VLHI
„..
Ucrmoll
See
27
28
129
30
r,nZ
31
32
Scare,
Record
33
34
35
r
--
1
1
l-
-1
I
)
l
--
I
F
-
I
A/V1
A/2
Figure
3
Citation
25
Flip
-Down
Panel
Press
in
and
release
the
top
of
the
flip
-down
panel
to
open.
one
trots.
21
22
As
was
previously
noted,
the
Citation
25
separates
the
functions
of
tone
frequency
turnover
and
amount
of
boosticut
for
added
fl
exibility.
The
BASS
(17)
and
TREBLE
(20)
knobs
control
the
amount
of
effect
(plus
or
minus
10dB)
provided
by
the
3
-position
TURNOVER
slide
switches
(18
&
19).
Both
treble
and
bass
TURNOVER
switches
have
a
central
position
marked
DEFEAT.
When
set
at
this
position,
the
adjacent
BASS
and
TREBLE
rotary
knobs
will
have
no
effect.
This
provides
an
excellent
method
of
assessing
"before"
and
"after"
tone
control
adjustments
quickly.
Simply
return
the
TURN-
OVER
switches
to
the
DEFEAT
position
several
times
as
you
make
bass
and
treble
adjustments
to
compare
their
effect
to
the
"tlat",
unequal
i
zed
sound.
The
Citation
25's
tone
control
system
is
primarily
recom-
mended
as
a
method
of
gently
correcting
tonal
deficiencies
(or
overabundances)
in
program
material.
Contrary
to
popular
belief,
many
recordings
receive
arbitrary
equalization
during
recording,
mixdown
and
mastering,
according
the
widely
varying
tastes
of
the
engineer,
producer
and
mastering
technician.
Thus
an
overly
shrill
or
"hoomy"
recording
may
be
made
more
listenable
with
a
slight
decrease
in
treble
and
bass,
respectively.
An
older
record
lacking
in
low
bass
may
be
23
24
25
enhanced.
An
indistinct
vocal
may
be
made
more
clear
by
relatively
"boosting"
the
midrange
through
the
reduction
of
both
treble
and
bass
controls,
While
the
Citation
25
tone
controls
may
also
he
used
to
correct
for
overall
room
and
speaker
deficiencies,
that
is
not
their
primary
purpose.
It
is
recommended
that
you
explore
alternatives
such
as
speaker
placement,
adjustment
of
speaker
level
controls,
acoustic
room
treatments,
etc.
so
that
the
position
of
the
Citation
25
tone
controls
may
be
left
in
their
DEFEAT
position
at
most
times.
The
PHASE
-CORRECT
LOUDNESS
(21)
circuit
provides
a
special
fixed
equalization
curve
which
compensates
for
the
ear's
decreased
sensitivity
at
low
listening
levels.
When
using
your
system
for
background
music,
engage
this
button
to
restore
frequency
balance.
As
mentioned
in
the
introduction
to
this
manual,
the
Phase
-Correct
Loudness
circuit
is
unique
both
in
its
equalization
curve
(flat
over
400Hz,
+3dB
at
200Hz)
and
in
its
ability
to
maintain
phase
accuracy
throughout
the
midrange
portion
of
the
sound
spectrum.
Even
if
you
have
developed
an
understandable
aversion
to
"loudness"
buttons
in
the
past,
you
are
urged
to
try
the
Citation
25's
new
approach
to
low
frequency
psychoacoustic
sound
enhancement.