Specifications
PREMIUM SERIES
Colors:
PM-11S3
New
PREMIUM INTEGRATED STEREO AMPLIFIER
The innovative “SA Driver” current amplifi cation circuit provides overwhelming spatial expressiveness and detail reproducibility.
This exceeds the pursuit of accuracy to achieve the highest quality of reality with the capability to even express emotion.
Full Discrete V/I Servo Power Amp Block
Marantz has consistently pursued the development
of higher speed amplifier circuits with the current
feedback circuit that uses the Marantz original high-
speed discrete amplifier module HDAM (Hyper
Dynamic Amplifier Module). The processing speed
of most of the voltage amplifier blocks has been
improved in the course of development of the
PM-11S2 and earlier models. For the PM-11S3 we
have enhanced the speed of the yet unimproved
power amplifier's current amplifier block. The PM-
11S3 offers high speed with an epoch-making current
amplifier circuit called “SA Driver” that incorporates
HDAM-SA3 buffers in the pre-driver stage of the
V/I servo current feedback power amplifi er. The PM-
11S3 has improved the speed of all circuits from input
to speaker output. As a result, the PM-11S3 features
wide sound stage and reproducibility of details with
sensitivity equivalent to the SC-7S2 and MA-9S2
models.
Linear control volume
The MAS6116 volume control IC is used for the
linear volume control to realize more lively sound.
The very high accuracy MAS6116 volume control IC is
used in parallel with the high-speed current feedback
amplifier circuit that uses the HDAM-SA3 to create
a variable gain amplifier with an excellent S/N ratio.
There is very little interlocking error, which is a problem
with analog volume controls, and gain switching
employing zero cross detection is used to prevent
click noise from occurring when adjusting the volume.
A variable resistor is not used to prevent change in
sound quality due to deterioration over time of the
volume components so that you can use this product
for a long time without concern. Further, the Floating
Control Bus Systems (F.C.B.S.) can interlock control
the volume of up to four PM-11S3. The system can be
fl exibly upgraded, such as by using multiple PM-11S3
to build biamp drives and multi-channel systems.
Powerful power circuit
The toroidal core size is increased to provide a higher
margin for the capacity. Furthermore, oxygen-free
copper (OFC) is used to transformer coils in an effort to
improve power. This unit utilizes Marantz's customized
block capacitors that come with audio high-purity
electrode foils having a divided or shifted winding
structure, similar to the MA-9S2. These outstanding
block capacitors have a capacitance of 22,000F
and low impedance. Instantaneous current supply is
improved by using these customized parts and
optimizing the wiring, pattern processing, and layout.
This power supply circuit can accurately drive state-of-
the art speakers that generate a strong counter-
electromotive force.
Constant current feedback phono equalizer
General NFB type phono equalizers apply a deep
negative feedback to high frequencies and a shallow
negative feedback to low frequencies to obtain the
RIAA characteristics, which results in the problem of
uneven feedback amount depending on the band
that causes variation in sound quality. The constant
current feedback phono equalizer makes possible
an ideal phono equalizer that provides a constant
negative feedback amount from low frequencies to high
frequencies to prevent change in the sound character.
In addition, the circuitry in the latest model used in the
PM-11S3 was simplifi ed by using a V/I servo in place
of the DC servo in the servo circuit to increase the
purity of the playback sound.
Current Feedback preamp
All input terminals are equipped with an input buffer
amplifier employing the HDAM-SA3 high-speed
amp module. Further, the balanced input terminal is
equipped with a HDAM-SA3-driven current feedback
balance buffer amplifi er. The HDAM-SA3 has a very
high slew rate, so using one in each circuit achieves
a current feedback preamp with high speed and
excellent channel separation up to the super-high
range. In addition, the sound quality is tuned by using
"Blue Star cap" pure copper film capacitors at key
locations in the preamp and power amplifi er circuits.
The Blue Star caps were developed through repeated
sound quality studies conducted with the supplier.
Other Features
Symmetrical circuit layout
Short power line layout
5 mm thick aluminum top cover
Copper plated chassis
Double layered chassis
Aluminum die-cast insulator
Machined copper speaker terminals
Gold plated machined brass input terminals
XLR balance input
Pre-out
Power amplifi er direct input
Tone control function
Low noise LCD display
Newly designed remote controller for
operating the SACD player and amplifi er
Auto standby function
Detachable Power Cord
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