Adjusting The Sensitivity Of The Aux Inputs; Checking By - Revox B251 Operating Instructions Manual

3.3.1
Adjusting the sensitivity
of
the
TUNER
input [50]
-
Press
TUNER
[32].
-
Press CAL
400H2 button (calibration tone) on the
REVOX
8261
tuner.
-
Press buttons LEVEL l24l
and
INPUT
[20].
-
PTessVOLUME buttons [28] and
[29]toadjustthe inputchan-
nel
to the reference value
in
the display [27].
-
Press STORE
button [23]. The sensitivity of the tuner
is
now
stored.
3.3.2
Adjusting the
sensitivity
of
the PHONO
inputs
[56]/
t57l
-
Press PHONO button [33].
-
Set PHONO switch
[10]
to
one of the
three input capacitances
(refer
to
Section
2.1.1).
-
Play
loud record
passages.
-
Press
buttons LEVEL 124) and INPUT
[20].
-
Press VOLUME buttons
[28]
and [29] to adjust
to the
refer-
ence value on the display
127).
-
Press STORE button [23]. the
sensitivity of
the phone input
is
now
stored.
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3.3.3
Adjusting sensitivity
of
the
DISC
input
[51]
-
Press DISC button [35].
-
Select fortissimo passage on a Compact
Disc.
-
Press
buttons
LEVEL l24l
and
INPUT
[20].
-
Press VOLU
M
E
buttons [28] and
[29]
to adjust the input signal
to the reference value on the display
{27).
-
Press STORE
button [23].
When connecting a
tuner that does not feature a
calibration
tone button (e.9.
REVOX
8760),
a program with
loud music
(wait for fortissimo passages)
should be selected.
Adjust this
music as
accurately
as
possible
to the same level as
the TAPE
in-
put
Moving coil input [57] (option)
-
Set PHONO [10] switch
to MC position.
-
Repeat
foregoing procedures.
It is
recommended to program-assign the subsonic filter to
the
phono inputs in order
to protect
the speakers
from
overloads
caused
by rumble frequencies.
-
Adjust sensitivity
as
outlined
above.
-
Press SUBSONIC
ON
t3l
(LED 2 turns
on).
-
Press STORE
button [23].
Note: lndividual sensitivities
can
be programmed
for the MM
and the
MC
input.
3.3.4
Adjusting the sensitivity of the AUX input [55]
This
input
is adjusted in the
same manner as
the tuner
input.
(Refer to
Section
3.3.1).
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3.4
Checking by ear
The inputs
can
be
accuratly adjusted
by
following the
proce-
dures outline above. The inputs can also be checked by ear ho-
wever, it shoud be
noted that music material with different fre-
quencies
are
perceived differentls
by the human
ear.
This makes
it
diffrcult to
JUdge
level differences in
music.
The settings can
be
checked
by
direct comparison
of
the inputs.
However, all inputs should
be
checked
wlth
the same
(or at least
similar) sound of music passages.