Marantz PM8003 - Manual (Page 5)

2
Names aNd FuNctioNs
Basic
coNNectioNs
Basic
opera
tioN
adV
aNced
coNNectioNs
remote coNtroller
opera
tioN
trouBleshootiNg
others
ENGLISH
This section must be read before any connection is
made to the mains supply.
eQuipmeNt maiNs WorKiNg settiNg
Your Marantz product has been prepared to comply
with the household power and safety requirements
that exist in your area.
PM8003 can be powered by 120V AC only.
copYright
Recording and playback of any material may
require consent. For further information refer to the
following:
— Copyright Act 1956
— Dramatic and Musical Performers Act 1958
— Performers Protection Acts 1963 and 1972
— Any subsequent statutory enactments and
orders
do Not locate iN the FolloWiNg
places
To ensure long-lasting use, do not locate the unit
where:
• Exposed to direct sunlight.
• Near to sources of heat such as heaters.
• Highly humid or poorly ventilated.
• Dusty.
• Subjected to mechanical vibrations.
• On wobbly, inclined or otherwise unstable
surfaces.
• Radiated heat is blocked such as in cramped
audio racks.
To ensure proper heat radiation, ensure the below
clearance from walls and other equipment.
Left
8 inchs (0.2 m) or more
Above
8 inchs (0.2 m) or more
Right
8 inchs (0.2 m) or more
Rear
8 inchs (0.2 m) or more
Keep oBJects oFF
Keep objects off the unit. Blocking the vent can
result in accident and damage.
do Not touch hot spots duriNg aNd
immediatelY aFter use
During and immediately after use, the unit is hot
in areas other than the controls and rear panel
connection jacks. Do not touch hot spots and
especially the top panel. Contact with hot areas can
cause burns.
Features
all-discrete curreNt-FeedBacK
ampliFier
Marantz’ proprietary current-feedback circuit, using
discrete components, is adopted in the pre amplifier
and power amplifier. It is a high-speed amplifier
using the latest technology developed for the
higher-grade amplifiers.
hdam-sa3 techNologY
The V/I converter circuit, which is the key block
of the current-feedback pre-amplifier and power
amplifier, is equivalent to the HDAM-SA3 amp-
module developed for such higher-grade models as
the SC-11S1.
cd direct BuFFer ampliFier
An input buffer amplifier exclusive for CD is mounted
near the CD input jacks. This is a high-speed buffer
amplifier made with discrete components, which
avoids interference between right and left channels
and can send the signals to the pre-amplifier with
very high fidelity.
improVed momeNtarY curreNt
supplY aBilitY
It is generally known that the sound quality is not
necessarily the same even if amplifiers have the
same specifications. Marantz considers the cause
to be the power to drive speakers. The power
amplifier of this unit has the ability to momentarily
supply current of 25 A or more to drive speakers
strongly.
short-poWer-liNe laYout
For strong momentary current supply, a short
power-line layout unifies the power circuit and
output stage of the power amplifier section. This
layout allows connecting the large-current lines via
the shortest route while to arranging the left and
right channels symmetrically.
all-discrete curreNt-FeedBacK
phoNo eQualiZer
As a phono equalizer amplifier for MM cartridges,
a constant current-feedback PHONO equalizer of
quality equal to that of the higher-grade model SC-
11S1 is used.
douBle-shielded toroidal
traNsFormer
The unit is equipped with a toroidal power
transformer to minimize vibration and leakage flux
specific to the transformer. Especially to reduce
leakage flux, which affects sound quality, the
periphery is double-shielded, using a core ring and
a short ring.
BlocK coNdeNser oF large capacitY
A large-capacity condenser of 18,000 μF is used in
the power circuit of the power amplifier. In the pre-
amplifier, a 4,700
μF condenser is used.
high-perFormaNce Volume
capacitor For high QualitY souNd
douBle-laYered chassis
high-grade speaKer termiNals
BeFore use