2.3.3 Output
power
indication
-
When
the
POWER button
[26]
is
pressed,
the
momentary out-
put power
of the amplifier
is
displayed.
Since this
instrument measures
peakvoltages,
it must be cali-
brated for the relatively
wide range
of 0.01
to 200
Watts. As
can be seen on
the display,
peak
levels of up to
100W are
pos-
sible
in a dynamic
music
program
even
at medium
volume
settings.
The
speakers
must,
of cours, be able
to handle such
peaks
which
means that only those types of speakers
should
be
connected that can
the maximum load without
suffering
damage.
Note: the
power
specifications
below
the
display
[27)
refer to
speaker systems
with an
input impedance
of
4 ohms.
These
va-
lues
must
be cut
in half for B ohm
systems.
B 251
.
INTEGRATED AMPLIFIEaI
t
2.4 Operating
with
the infrared system
remote
control
8201
The 8251 amplif
ier
can
be controlled
remotely without
cable by
using the
infrared system
remote
control.
The amplifier
is
con-
trolled with
the top
group
of buttons on the
remote control box.
The REVOX
8201
system
remote control is designed
for
control-
ling
the entire
Revox
hi-fi chain
(tuner,
amplifier.
cassette/tape
recorders and turntable).
Additional
information can
be found
in
the operating
instructions
of the B201
remote control. Com-
mands are best received
when the
remote
control
box
is
point-
ed toward
the unit to be selected.
2.4.1
Remote control of
the amplifier
The amplifier
is
switched
on by
pressing
one
of the source se-
lection buttons
(MONITOR).
Volume
control:
The volume
is reduced by
pressing
the
-
button
and
increas-
ed
by
pressing
the
+
button.
The
-20d8
button
reduces
the
volume
by
20d8.
Balance:
The channel balance
can be adjusted between
+3/-10dB
with the buttons BALANCE
L
and
R.
Tape
outputs:
The
source signal
can be connected to the tape outputs
by
pressing
REC
OUT:MON.
Amplifier
power
off:
The POWER OFF button
(lower
right)
switches
off allremotely
controllable units.
2.4.2Remote control
of tape recorder
(connected
to socket
t46l)
A tape recorder without built-in
infrared receiver can be con-
nected to the socketTAPE
TRANSPORT Bl7lB710
(retrof
ittable
option). The corresponding
controls are located
in the lower
group.
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