Harman Kardon CIT25 Owners Manual - Page 11

Turntable, Compact, Player, Citation, Tuner, CARTRIDGE, CAPACITANCE, MINUS, TURNTABLE, TC-125

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Turntable Compact Disc Player Amin) Output • I n (4,CD Tans Create P er On Tape 2 In Ou1 Tape I *i i i®I in ani iIi. • ® I.® lidea Muni. ChI U OLD t~ C ruI MC Pinup O O CD 1/12 A/VI 0 ®. la CP 'CR 2 ® ® In 3.t WIT 1 Audiu 0 p„, NSA Citation 25 Tuner now I. • RS Figure 7 Audio Connections To obtain these two figures, first check the specifications which came packed with your cartridge. Cartridge capacitance should be listed under "Capacitive Load Range" or "Optimum Load Capacitance" or similar wording. Or consult with the dealer from which it was purchased. Next determine the total capacitance of the phono cable and internal tonearm wiring. This specification is printed in the turntable's owner's manual. The final amount of adjustment made with the CAP TRIM potentiometer must also take into account that the Citation 25's • • Culpnl Input • Output Input Tape Deck 1 Tape Deck 2 normal setting provides 125 pf capacitance. The CAP TRIM feature adds 100, 200 or 300pf to the "normal" 125pf. Thus the actual formula for adjusting CAP TRIM is: CARTRIDGE CAPACITANCE MINUS TURNTABLE CAPACITANCE MINUS 125 or CC - TC-125 For example, a certain popular cartridge is designed for a 400 pf load. Your turntable has a specified cable capacitance of 150 pf. 400 - 150 - 125 = 125. With most cartridges, a variation of 25-50 pf from the ideal capacitance produces only a very slight change of response. Thus in our example, you would choose the +100 setting for a total of 125pf+100pf = 225pf. An alternative approach is to experiment by adjusting the capacitance while listening to recordings. Typically, with too low a capacitance, the upper midrange will be "soft" while the highest frequencies will be "peaky" and overemphasized. Too much capacitance will over-accentuate the upper midrange and muffle extreme highs.

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Turntable
Compact
Disc
Player
Amin)
Output
• I
n
Citation
25
(
4,CD
Tans
OLD
t~
C
ruI
MC
Pinup
Tuner
now
I.
•
RS
O
O
Tape
2
In
Ou1
CD
1/12
A/VI
Tape
I
*i
i
i
®I
iIi.
•
®
I.®
lidea
in
ani
Muni.
Ch
I
Audiu
0
®.
®
®
0
p
„,
la
CP
In
3.t
'CR
2
WIT
1
NSA
Create
P
er
On
U
•
•
Culpnl
Input
Tape
Deck
1
•
Output
Input
Tape
Deck
2
Figure
7
Audio
Connections
To
obtain
these
two
figures,
first
check
the
specifications
which
came
packed
with
your
cartridge.
Cartridge capacitance
should
be
listed
under
"Capacitive
Load
Range"
or
"Optimum
Load
Capacitance"
or
similar
wording.
Or
consult
with
the
dealer
from
which
it
was
purchased.
Next
determine
the
total
capacitance
of
the
phono
cable
and
internal
tonearm
wiring.
This
specification
is
printed
in
the
turntable's
owner's
manual.
The
final
amount
of
adjustment
made
with
the
CAP
TRIM
potentiometer
must
also
take
into
account
that
the
Citation
25's
normal
setting
provides
125
pf
capacitance.
The
CAP
TRIM
feature
adds
100,
200
or
300pf
to
the
"normal"
125pf.
Thus
the
actual
formula
for
adjusting
CAP
TRIM
is:
CARTRIDGE
CAPACITANCE
MINUS
TURNTABLE
CAPACITANCE
MINUS
125
or
CC
-
TC-125
For
example,
a
certain
popular
cartridge
is
designed
for
a
400
pf
load.
Your
turntable
has
a
specified
cable
capacitance
of
150
pf.
400
-
150
-
125
=
125.
With
most
cartridges,
a
variation
of
25-50
pf
from
the
ideal
capacitance
produces
only
a
very
slight
change
of
response.
Thus
in
our
example,
you
would
choose
the
+100
setting
for
a
total
of
125pf+100pf
=
225pf.
An
alternative
approach
is
to
experiment
by
adjusting
the
capacitance
while
listening
to
recordings.
Typically,
with
too
low
a
capacitance,
the
upper
midrange
will
be
"soft"
while
the
highest
frequencies
will
be
"peaky"
and
overemphasized.
Too
much
capacitance
will
over
-accentuate
the
upper
midrange
and
muffle
extreme
highs.