Page 1
EQUIPMENT
PROFILE
MARANTZ
-73
CD
COMPACT
PLAYER
DISC
Manufacturer's
Frequency
kHz.
Dynamic
S/N:
Channel
Range:
dB.
90
Separation:
Harmonic
kHz.
Output
Number
Level:
of
Specifications
Response:
90 dB.
90 dB.
Distortion:
2.0
0.005%
V.
Programmable
20
lections: 15.
Dimensions:
in.
31/4
(8.25
cm) D.
Weight:
Price:
19 lbs.
$999.00.
Company Address: 20525
St., Chatsworth, Cal.
For literature,
163/e
cm)
(8.6
circle
in. (41.6 cm)
x 135/e in. (34.6
H
kg).
93111.
No.
94
Hz
20
to
at
Se-
W
Nordhoff
1
x
C
If you
possibly be incorporated
is probably
flawless
correction capabilities,
and a
-73
CD
As is
added its
66
looking for all the bells
are
not for you.
reproduction
player that
CD
may
be
just
many Marantz
true of
own special
..114~.ªA_
in a
CD
On
from
Compact
unusually
looks
good
what
you are
touch
player, the
the
other
good
and
looking
products,
this, their
to
-
-
whistles
and
Marantz
hand, if you
Discs, superb
is
easy
shock
to
for.
the
company
first
resistance,
operate,
CD
that
CD -73
player.
can
want
error
the
has
There is,
front
unit. But
-
endow
capabilities
ing
Up
ing there
play in
"
of course,
-panel casting,
beyond that,
the CD -73
front
without
panel.
to 15 different selections
that
are
any order.
the
which adds
Marantz engineers
with a
ending
many "tracks" on the
The programmed
familiar
host
of
with
up
gold -anodized
a touch of elegance
programming
can
have
features and
a cluttered
be
programmed
AUDIO/FEBRUARY 1984
and
disc being
selections
,
aluminum
to the
managed to
intimidat-
(provid-
played) to
be
can
Page 2
played
disc.
you
of
a
a given
the
being played.
laser
audible
loading
in
(but that
not
elapsed -time
index
remote
Marantz
two
available,
Marantz
functions
Control
plus
located
Close"
drawer
by
holds
way,
wind,
buttons
face.
large
the top
illuminate
When
LEDs
each
currently
go out, one at a time,
indicate
"Stop/All Cancel," "Select,"
cel." These
ways
tons
being
tracks 2,
"Select" button to
track
pushed the "Preset" button,
player's memory
button again,
beneath the number
"Preset"
over and
Should
can
cancel
course,
single button.
selection, a
next
pre-programmed
pickup
sound
Marantz
its
proportions.
As
for
the
are
have
"phrase repeat" capability
cueing
control
plans to introduce one
extra jacks
has indicated
of
over again,
you change
any track
you
can cancel
Should you
Fast
-forward or
is
also actuated by
is heard
CD
features
found
counter.
or cueing by
is not presently available
on
it will
be a
the player.
your
you
the
touch
of
during these
resembles a
-73
Marantz
that
on some
Neither is
rear panel
the
wired type rather than an
that the
Layout
A power
an angle
Most
Programming
on/off button
the
"Open/Close" button
at the
extreme
button
slide out, but the
the disc down during
to
fast
of the
display window. Arranged in a
of the
a disc is inserted
light
of these
previously
clearly
programmed
2.
is
about
of
make
disc
forward, "Next Program/Play" and "Pause" touch
are
along
all
right half
display
behind
up. Corresponding orange
numerals light
being played. As
successive tracks being
buttons
are used to pre-program disc play
described.
depict not
4,
and 7
The
orange
circuits.
advancing
once again.
and
left
touched, not only
front face
45°, while
loading that
lower
the
of the
area are
highly
visible
and the drawer
while
below
only
well.
as
to play,
in that
advance the orange
light would flash
You would
the lower
4,
at
The
if
desired,
mind
decide you'd
entire program at the touch of
decide
another button advances
or sequential
fast
-reverse
front
CD players),
into
time
later,
remote
its
associated
for
the disc
the
of
the
play)
swings up
much
edge of
front
15
numerals, 1
up to show
progresses, the green
play
the orange
played.
the
"Preset,"
as
can
after play
you've
-panel
fast
modern
chose
nor
there
a given track.
and
suggest
will
unit.
does
the door
of
retaining
easier. The
panel
horizontal row
small
dots
light
display
"Repeat" and "Can-
has
rather
heard
enough of
track
on the disc
movement
buttons,
modes. The front
cassette deck
not
incorporate
to
the
CD
it nave an
does
provision for
any
for
this model,
the
presence of
that, when it is
operate only
indicator light,
compartment,
When the
the entire disc
swings
arm
and
the drawer's
is
given over
green
LEDs
through
is closed, all
light
of
what
moves
area include
in any
an
entire
begun,
skip, and,
you to
of
but
-73
While a
infrared.
"Open/
down
(which
of the
out
fast re-
along
which
below
track is
along
of
Indicator lights above the but-
what is happening,
For
example,
you would
order,
entering the
which
procedure
same
indicator light
and
on
instruction
push the
then
light
until
time you
what is
but
wanted
if you
push
until
off
in the
"Select"
flashing
it is
would press
would be
the
no
does
four
are
front
to a
15.
15
lights
to
the
the
to
you
fol-
FR
+2
0
-2
-
+2
0
-2
50 100
20
Fig. 1-Frequency
response,
left
(top) and
right channels, at 0 dB
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r
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º C1
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a
Fig. 2-Harmonic
distortion
levels
of 0, - 24, and
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3-Channel
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AUDIO/FEBRUARY
1984
67
Page 3
my
-73
test
without
The CD
all
defects
beat. Only
players
have done
played through
disc's simulated
a
a
very
missing
few
this.
4-Reproduction
Fig.
-kHz
1
sqúare
Fíg. 5-Single-pulse
Fig. 6-Phase
2- and
test,
wave.
linearity
20
-kHz
signals.
frarro.4h
of
test.
programming
for
lowed
depress the
desired track
orange
played),
light
and only
"Play"
number lights
would move to 2 (the
play
button on the disc
4
the
2,
illuminated.
panel
rear
The
usual pair of audio output
able) plus
function,
a pair of jacks
wired
remote
of the
Marantz
-control
Measurements
Figure 1,
left and right
disc's
Frequency
ideal by
the
figure has been expanded so
this
2 dB
were
Harmonic distortion at
corded output,
high frequencies to
At a -24
at mid -frequencies,
-30 dB, distortion
997
Output
reference level down to -80
dB
difficult
equipment
of
nels
mid
-frequencies,
at 20
Intermodulation
0.004%
0.03% at -
97 dB, unweighted,
network was introduced
ing
which
channels,
sweep
signals,
response within this
more
instead
used, all you
of the
was
recorded level,
dB
Hz) was
linearity
to read
0.045%.
output
'irritations. Stereo separation
(plotted
kHz.
in Fig. 3)
maximum recorded
at
20 dB
shows
was
which run
than 0.3
usual
would
mid
0.0045%,
0.008%,
while at a still
1 kHz (actually, the
at
was accurate
with
was better
decreasing
distortion
recorded
increasing
instrument.
The
shape
Marantz
by other CD players (notably
for
digital
the
In
er
CD
by
sale
filtering and
single -pulse signal
fact,
the
in many
incorporates and
already
tured
guessed, the
for
characteristics
.engineers.
A phase
a 2 -kHz
of
and a 20 -kHz sine
to
used
positive
posed
low -frequency signal.
check
axis crossing
to
correspond
1 -kHz square
of a
-73
(see
4) was identical
Fig.
Magnavox in this country)
oversampling.
shown
Marantz CD -73
physical
respects
those that
Marantz
Marantz
by
having
Philips,
first been established
-check signal
sine
wave
reproduced
wave
phase error.
of the
with the
As
of track
7.
drawer.
now
would
7 green LEDs would
and
be extinguished,
first desired
is
-73
CD
jacks (output
intended
the
for
unit.
frequency response
plotted
using
from
band never deviated
dB. Note that the
that
each
If the
be
less
a
10
see
dB.
would
-frequencies,
rising
only
as shown
distortion
any degree of
to
in
increased
lower
within
to
dB, below
than 85 dB
78
at 10
dB
measured
level,
output
level.
Signal-to-noise
107
to
dB
series
with
in
wave as reproduced
manufactured
those
which
The same holds
in the 'scope photo
resembles
as
the
on
signal
When no phase
high
you can
Magnavox's top play-
well as in the
are omitted.
its layout
is,
-73
CD
Philips test
by one channel
the
on
-frequency signal
positive
axis crossing
by examining
see
All but the
track
remain
with
is not
adjust-
for
Philips test
20
would
to be
four
both
kHz.
from
Next, you
equipped
level
optional,
the
my
20 Hz to
vertical scale
division
sensitive
straight
for maximum
very
the graph
recorded
test
dB
0.1
which
accuracy
for both chan-
kHz and
negligibly
a
equals
line.
at
slightly
Fig.
of
to 0.025%
level of
frequency
from
the
it became
because
for
low
74 dB
scale
increasing
ratio
when an
to that
measuring
the
reproduced
employ
A -weight-
by the
Philips
by
pre-D/A
true
Fig.
of
features
If
in fact,
and performance
disc, consisting
that
you haven't
manufac-
Marantz
by
output
channel,
other
error exists,
is
of
Fig. 6,
the
the
in
re-
the
2.
is
0
and
low
to
was
for
5.
was
the
sup-
the
-
-
it
68
AUDIO/FEBRUARY
1984
Page 4
Marantz
The
performs
superbly-in
its sound and
reliability of operation.
and
-73
CD
its
simplicity
both
that is
almost precisely
reproduced
are
in
before
maintain
accuracy
reviews,
these
that such
of musical
high -frequency
my
I used
well
the
fects in
special
player can
The test disc contains
a disc.
ever-increasing
resenting
Marantz
dust particles),
was able to play through
-73
CD
without missing
errors from
obstructions
diameter and that
opaque
have
guessed
impervious
panels. It took
fingerprint
tested have
it-the
mistracking
to
fairly firm blows on
by the
reproduction
width, several
a beat.
Magnavox player.
what
Marantz
there
phase accuracy
reproduction and to
-correction
error
overlook
This
as
it
completely
smudge.
accomplished
mistracking.
Use and Listening
I must
confess that
programmable
Tests
being
selections
nuisance when testing such
discs
contains
contains
higher
than
and
then selecting
ly, keeping
desired
When
quickly
test signal
it
forgotten. There are
27 useful test
41.
Of course,
15
the
on
count
came time
it is
Marantz
the "Next
(or watching
is reached, but that's
to listen to music, this objection
contain more than 15 tracks
some of
pop
the
early sampler
records, few
carry
that many
happens
CD
are
particular.
in
minor (and
when
As
have mentioned
-73.
I
many critical
contributes
an improvement
test disc
not
an opaque
these signals
listeners
to
to check
minor)
so
wedge
artificial opaque "dots"
and a simulated
smudge.
these defects
all of
means it was able to correct
large
as
900
microns
in
ignored the simulated semi
very few
a
Only
feat, among them-you
this
The
when I
limited to a
on a
products,
possible
player
CD
tapped
its
outer
maximum of only
CD player can
since one
while
bands
to play track
by
Program"
an
oscilloscope)
virtually no
classical
(with the possible
and even
discs),
-73
its
moving to track
button progressive-
a bit
players
CD
was relatively
surface
case to cause
be a
of my
the other
numbers
cumbersome.
CDs
exception
in
the case
selections.
who
greater
how
de-
(rep-
The
width
or side
bit of a
test
one
until
was
which
With
fact
way,
material, which is
in
its
simplicity
find
seconds to get
but
manner.
of
pact Disc
no
of
than Marantz's
or
-
I
15
15,
the
of
of
When
slides out and
that minor
in the way it
both
Marantz
that the
and reliability
-numbered
high
a
few
us,
of
Mostly,
straight
other
CD
!
the "Open/Close"
objection
-73
CD
sounds
no
longer the problem
of
track
to
I think, would
I
15, from
track
suspect,
through,
which
player
first
entry.
door's
Sutton
front
the
out of the
is
way, I
can
a superb performer
(given
some
it
once
operation. Scanning
does
a "cold" start at
normally
we
simply
for
and
take a
that purpose,
bit
program
want
to
performs this
Leonard
swings
the disc drawer
down
Is touched,
face
attest to the
in
every
decent source
was) and
forward
time (12
of
play in
hear
I
function
track
a Com-
can
better
1),
that
think
Feldman
45°.
by
in
to
De
IMF
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