McIntosh C20 Instruction Manual page 16

(l)
Each
personrs subjective idea of tone
balance.
(21
Loudspeaker
frequency
response
characteristics.
(3)
Loudspeaker
placement
in
the
listening
roorn,
(4) The
conductorrs
idea of tone
balance at the
time the recording
was rnade,
(5)
The
rnicrophone frequency
response
characteristics.
(7)
The
recording process
influences.
These
factors
can
be considered as environrnent
influences.
The bass
and
treble controls
are designed to provide
a
degree of
cornpensation
for the effects of environrnent. Start Iisten-
ing to your
system
with
each
control at zero. Ifyou wish to
reduce
treble in relation to
bass,
rotate the "TREBLE" control counterclockwise until
the tone balance sounds
correct to you
at
this particular tirne. Do not be surprised if
you
find your preference
changing
from time
to
tirne.
These
controls will rnodify
tone balance
without introducing
any
undesirable effects
of
therns elve s.
Tone balance rnay be accented
in the treble
range
by rotating
the
I'TREBLEil
control clock-
wise. Sirnilarly
tone balance rnay
be
modified up
or
down
by use of the bass control.
9. The record
cornpensation
controls are used to correct for the necessary program
equalization which the recording process introduces.
Recording
requires
a change
in
the
dis-
tribution of intensity with frequency
and
practically
rneans
that without compensation
a
rnagnet-
ic cartridge would
sound
greatly deficient in
the bass range
and
overly bright or shrill in
the
treble
range.
For several years record
cornpanies used rnany
different recording characteristics in
an
effort to give rnaxirnurn entertainrnent
value
to listening to their records.
The recornrnended
settings
for Iistening to
these
records are
given
in
the
table following.
RECOMMENDED SETTINGS
OF THE
RECORD COMPENSATOR CONTROLS
OF THE C-20
FOR MONOPHONIC
RECORDS
Manufacturer
Cornpensator Controls
Bass
Treble
Speed (Trrnover) (Roli-Off)
Manufacturer
Cornpens
ator
Controls
Bass
Treble
Speed (Trrrnover) (Roll-Off)
Allegro
Arnerican
Re
c o
rding
Society
Ang
e1
Atl
ant
i c
Audi
ophil
e
Bach Guild
B
anne
r
Bartok
Boston
Blu
e
N
ote
Caedrnon
33
LP
LP
33
RIAA
.
TZ
33 RIAA
-
IZ
33
LP
-
10
LP
LP
-rz
-rz
33
C
apital
C
apit al
Cany
on
Capitol
-
Cetra
Colosseurn
Cetra-Soria
C
olurnbia
C
olurnbia
C
olurnbia
Conternpor
ary
Concert HaII
Coral
C
ook
45 RiAA
-
IZ
33
7B
45
7B
400
-rz
33 400
-rz
RIAA
300
LP
LP
400
LP
33
LP
RIAA
300
400
Riaa
LP
LP
LF
-rz
-rz
,78
33
33
33
33
33
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