Philips N4450 - Playback and Amplifier Usage

e If you wish to listen in during recording, you may now
adjust volume, balance and tone with controls 32... 35.
@ To start the recording, press the appropriate start key
for tape transport (16 or 19). Occasionally check the re-
cording level and, if necessary, readjust it gradually.
@ As long as the tape is running, you may choose between
before and after-tape monitoring (switch 10).
© For brief interruptions press the pause key (18).
Monitoring is now possible only in position “B” of the
before/after-tape monitoring switch (10).
© To stop recording, press the stop key (21). If desired,
you may also press one of the fast wind keys (20 or 22).
Note: If during recording (with running tape) the other
start key for tape transport is pressed, the recording
function is not switched off. The recorder then continues
recording in the other direction.
3.6. ERASING WITHOUT RECORDING
During recording any previous recording on the same part
of the tape is automatically erased. A recording may also
be erased without recording over it:
© Set speed selector (13) to “19” (to speed up erasing).
© Set track selector (11) to “ST”, “1-4” or “3-2”, depending
on the tracks to be erased. (In position “ST” two tracks, 1
and 3 or 4 and 2 are erased at the same time; in position
“1-4” or “3-2” one track is erased at a time).
© Set all recording level controls (28... 31) to “0”.
@ Press one of the start keys for tape transport (16 or 19)
together with the record key (17).
© To stop, press stop key (21).
4. PLAYING BACK AND USING THE AMPLIFIER
SECTION
4.1. THE AMPLIFIER
The
built-in
Hi-Fi
stereo
amplifier
meets
Hi-Fi
standard
DIN
45
500
and
supplies
2
x
20
W
of
continuous
power
(2x
30
W
music
power).
The
volume
is
adjusted
with
control
(32)
““VOLUME”.
The
balance
between
left
and
right
channel
during
stereo
reproduction
is
adjusted
with
control
(33)
“BALANCE”.
The
bass
tones
are
adjusted
with
control
(34)
“BASS”.
Treble
can
be
adjusted
with
control
(35)
“TREBLE”.
At
low
volume
(volume
control
32)
you
may
depress
the
contour
switch
(39)
“PHYS”
(physiology):
the
low
and
high
notes
are
then
additionally
boosted.
This
is
because
at
low
sound
level
the
human
ear
is
less
sensitive
to
the
treble
and
bass
tones.
When
using
a
record
player
the
noise
filter
(36)
“SCRATCH”
or
the
rumble
filter
(37)
“RUMBLE”
may
be
switched
in
by
pressing
the
relevant
switches.
“Scratch”
is
disturbing
noise
in
the
treble
range,
occurring
when
playing
an
old
and
wom
record.
“Rumble”
is
a
dis-
turbing
sound
in
the
bass
range
caused
by
mechanical
vibrations
of
the
record
player
or
vibrations
from
outside.
You
can
listen
to
the
amplifier
via
two
loudspeaker
enclosures
and/or
via
stereo
headphones;
volume
etc.
can
be
adjusted
with
the
same
controls
in
both
cases.
a. Via two loudspeaker enclosures (4-8 ohm)
Connect
the
enclosures
to
sockets
(44)
and
(45).
The
loud-
speaker
enclosure
connected
to
socket
(45)
reproduces
the
left-hand
channel
of
a
stereo
recording
and
that
connected
to
socket
(44)
the
right-hand
channel.
66
Place
the
loudspeaker
enclosure
for
the
left
channel
to
your
left
and
that
for
the
right
channel
to-your
right.
In
general,
the
best
listening
position
is
in
the
middle
in
front
of
the
loudspeaker
enclosures,
so
that
the
distance
from
the
listener
to
each
enclosure
equals
the
distance
between
the
enclosures.
However,
it
may
be
necessary
to
do
some
experi-
menting
to
find
the
best
enclosure
arrangement
as
the
sound
reproduction
may
be
influenced
by
the
acoustic
properties
of
the
room.
By
sliding
the
balance
control
(33)
up
or
down
from
position
“Q”,
the
reproduced
sound
of
a
stereo
recording
can
be
made
to
resemble
the
original
sound
impression
as
closely
as
possible.
In
the
case
of
a
mono
recording,
the
sound
is
repro-
duced
at
the
same
volume
by
both
loudspeaker
enclosures
in
position
“0”
of
the
balance
control.
If
desired
one
of
the
loudspeaker
enclosures
may
then
be
muted
completely
by
sliding
the
balance
control
completely
upwards
or
downwards,
depending
on
the
loudspeaker
enclosure
to
be
switched
off.
b. Via stereo headphones
The
headphones
should
be
connected
in
the
desired
position
to
socket
(27)
under
the
shutter
(23)
at
the
front
of
the
recorder.
c. Via a monitor amplifier
An additional amplifier can be connected to socket
“MONITOR”
(46).
Volume
etc.
can
then
be
adjusted
on
the
external
amplifier.
The
volume
controls
etc.
of
N
4450
do
not
affect
the
output
signal
on
the
“MONITOR”
socket
(46).
4.2.
PLAYING
BACK
A
TAPE
PROGRAMME
©
Check
that
the
function
selector
(12)
is
in
position
“NOR”.
©
During
playback
the
position
of
the
before/after
tape
switch
(10)
is
not
important.
©
Set
the
speed
selector
(13)
to
the
speed
at
which
the
recording
has
been
made.
©
Set
the
track
selector
(11)
to
the
position
in
which
the
recording
has
been
made.
©
Set
the
normal/reverse
switch
(14)
to
the
desired
position.
©
Start
playback
by
pressing
the
appropriate
start
key
for
tape
transport
(16)
or
(19).
e
Adjust
the
volume
etc.
with
the
relevant
controls
(see
Chapter’4.1.).
e
To
stop
playing
back,
press
stop
key
(21).
e
Ifyou
wish
to
proceed
at
once
to
fast
winding,
tape
transport
in
the
opposite
direction
or
recording,
you
may
simply
press
the
relevant
keys,
without
having
to
press
the
stop
key
(21)
first.
4.3. USING N 4450 AS AN AMPLIFIER
When
the
function
selector
(12)
is
in
position
“AMP”,
only
the
amplifier
section
of
the
recorder
is
operative.
The
three
motors
of
the
tape
deck
are
then
switched
off
and
the
keys
for
the
tape
transport
functions
(16...
22)
are
inoperative.
If
during
tape
transport
you
wish
to
change
over
to
the
amplifier
section,
the
function
selector
(12)
may
be
simply
set
from
“NOR”
to
“AMP”
while
the
tape
is
running.
The
effect
is
the
same
as
when
pressing
the
stop
key
(21).
The
amplifier
section
can
form
the
centre
of
your
stereo
installation,
i.e.
it
may
be
used
in
combination
with
e.g.
a
record
player
or
tuner,
without
the
need
to
make
a
recording.
©
Check
that
the
relevant
signal
source
is
connected
to
the
correct
socket.