||450,000yen(around the 1994 time)
The highest-class Integrated Amplifier which
supplied all the technologies of the Marantz and was developed as a pure audio
model which reached to an extreme of a modification of S/N on Hearing impression
which PM series has hammered out consistently, and the reservation of high S/N
at the time of a real using.
Two kinds of type of outputs of the Class-A
/ AB class adopted since PM-80 are unified to AB class.
The Class-A scheme
was omitted from the circuitry, and though it is a stream composition of only AB
class circuitry, the new power block which can also be said to be the super AB
class which realizes the quality at the time of a Class-A output is developed
Moreover, the bipolar transistor for RFs (Pc=200W) is adopted
as a device by the parallel push pull, and high electric-current drive capacity
is secured to it.
The layout which made the pre part and the power part
become independent completely is adopted, and the mutual electric interference
Moreover, a balance scheme is adopted as both interconnection
and the ill effect to the music signal by the noise from the outside is stopped.
Especially in the 4-unit active volume adopted as the volume part, the
resistor rotation type volume of a low impedance specification which was
excellent as volume component partses is adopted.
low-noise amplifier stream composition, such as head amplifier of a push pull
differential circuit, is adopted as a phone equalizer part.
adopted the double-sided foil printed circuit board of 70micro thickness as a
substrate and improving shielding nature, reservation of the drive capacity
corresponding to the speaker of a low-impedance is aimed at.
is a unit original with a Marantz is adopted.
This is what adopted the
shielding structure by the copper case or a multilayer substrates, and
demonstrates the performance which suppressed heat, an oscillation, and the
influence from electromagnetic waves, and was stabilized.
In addition to a
low-noise high slew rate, this has realized the space efficiency and the high
stability which are the merits of IC.
The copper plating was given to the extra-large toroidal power transformer
which gave the copper plating as a measure against a RF noise, and also
a low foil scaling-factor electrolytic capacitor is adopted, and the stable
powering is made possible.
order to realize sound which stops a rectification noise and does not have
muddiness, the noise-killer element is carried in power, the pre, and the
control part, respectively.
Based on the zinc die-casting chassis which
gave the copper plating, the chassis is constituted from the front panel of the
top plate which uses the steel plate of 3mm thickness, and aluminum extrusion
material, and the leg which began to delete a pure-copper block, and has
eliminated the oscillation thoroughly.
All input/output terminals plated
with gold, and also they have adopted the same large-sized sticking-by-pressure
type speaker terminal as what was adopted by PM-99SE.
||Stereo Integrated Amplifier
||10Hz-50kHz+0 -1 dB
||compact-disk balance input: One line
Line input: Six lines
Phono input: One line
Tape input: Two lines
||Tape output: Two lines
||340W (Electrical Appliance and Material
||Width 454x height 210x depth of 467mm