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Extracted text from mark levinson no 432 brochure (Ocr-read)
Page 1
Power amplifiers are core components of any
high performance entertainment system.
Their task is formidable - they must comfort-
ably drive a wide variety of demanding
speakers while preserving all the power and
nuance of the source material. The ability to
maintain sonic neutrality, while exercising
brute force or finesse as appropriate, is an
attribute that has made Mark Levinsonpower amplifiers the standard in the industry
for nearly 30 years.
The NÂș432 and NÂș431 replace the NÂș336,
NÂș335 and NÂș334 dual-mono power ampli-
fiers in the Mark Levinson line. The design of
the NÂș432 and NÂș 431 is derived from the
NÂș436 and NÂș434 mono power amplifiers.
This continuing evolution is driven by our
unrelenting desire to produce products that
deliver better performance and greater value
than their predecessors. The NÂș432 and
NÂș431 have power ratings of 400 and 200
watts per channel at 8-Š, and 800 and
400 watts per channel at 4-Š,
respectively. Like their
300 series predeces-
sors, these new
power ampli-
fiers are convection
cooled and utilize indi-
vidual exposed internal
heatsinks for each channel.
NÂș432 & N Âș431
DUAL-MONO POWER AMPLIFIERS
NÂș432
NÂș432 Interior
Page 2
The physical and sonic properties of the
NÂș432 and NÂș431 are built upon the Mark
Levinson power amplifier tradition. The
power supply is the foundation that all of the
audio circuitry is built upon. Each channel
benefits from a massive, dedicated, independ-
ent linear power supply. Our listening tests
continue to confirm that abundant clean
power is essential for high performance.
Precise control of this power reserve is the
task of the power amplifiers voltage gain and
output stage circuitry. Mark Levinson power
amplifiers have always featured precision
circuitry designed to fully exploit balanced
signals. Rather than simply duplicate circuit-
ry for both halves of the balanced input signal
as many power amplifiers do, our power
amplifiers have featured an advanced topolo-
gy for greater efficiency, performance and
sonic benefits. The NÂș432 and NÂș431 contin-
ue this practice. Though similar to the
Voltage Gain circuit in the 300 series power
amplifierss that they replace, this new genera-
tion of power amplifiers features a more
elegant topology closely related to the NÂș436
and NÂș434 mono power amplifiers.
As with all Mark Levinson power amplifiers,
particular attention is paid to the layout ofcircuitry and precise location and routing of
connections. All circuit board layout is
performed by our engineers rather than by a
computer program. These new power ampli-
fiers outperform their predecessors in part
because of the refinement of circuit layout.
Additionally, the ultra-high performance parts
that make up our balanced circuits are able to
work to their full potential because they
reside in the most neutral circuit board mate-
rial we know of: Arlon
Âź. The matched output
transistors continue to be the best performing
parts available for this application and they
are mounted directly to the exposed internal
black anodized aluminum heat sinks.
The NÂș432 and NÂș431 carry on the Mark
Levinson tradition of combining brute force
with finesse while avoiding the common
mistake of imparting their own fingerprint on
the sound. They are welcome additions to
the impressive NÂș436 and NÂș434 mono
power amplifiers and worthy successors to
the 300 series. The NÂș432 and NÂș431 are
capable of providing remarkable performance
to provide years of listening enjoyment.
NÂș431