Mark Levinson No.433 Manuale utente
Nº433
TRIPLE-MONO POWER AMPLIFIER
AMark Levinson Amplifier for the
Multi-Channel Age
The N
º
433, Mark Levinson’s first three-
channel, single-chassis power amplifier, is a
significant milestone. It combines multi-
channel flexibility with the legendary quality
and performance of our traditional single- and
dual-monaural designs. The N
º
433 is our
recognition that today’shome entertainment
enthusiasts have a plethora of choices avail-
able to them, that a growing number of these
choices use multi-channel sound to express
artistic vision, and that today’s audiences
deserve no less than the most truthful aural
windows possible. The N
º
433 is ideal for this
demanding role.
The Power of Three
Athree-channel amplifier is inherently flexi-
ble. It lets you power all front speakers (Left,
Center,and Right) with identical circuitry
and use your existing amplifier for the
surround channels. Areyou adding multi-
channel capability to an already-exceptional
stereo music system? The N
º
433 can
provide power for a Center and two
Surround speakers.
Flexibility and Quality
Fitting three separate amplifiers in an enclo-
sure normally devoted to one or two
presented significant challenges, including
potential interference and heat dissipation
issues far beyond those encountered in
single- and dual-mono amplifiers.
In addition, power amplifiers are core compo-
nents of any high performance entertainment
system. Power amplifiers play an inherently
difficult role as they need to be authoritative
enough to drive a wide variety of demanding
speakers, yet transparent in order to preserve
sonic neutrality.
AMulti-Channel Standard
The N
º
433 is no exception to the demanding
standards that Mark Levinson amplifiers have
defined for morethan three decades. Rated
at 200 watts per channel into 8 Ohms and
400 watts per channel into 4 Ohms, the
N
º
433 is convection cooled and utilizes
exposed internal heat sinks for each channel.
With basic design directly traceable to our
N
º
432 and N
º
431 dual-monaural power
amplifiers, the N
º
433 boasts three massive
Nº433
TRIPLE-MONO POWER AMPLIFIER
and totally independent linear power
supplies, each consisting of a low-noise
toroidal power transformer and a bank of
low-loss capacitors to insure copious energy
storage. Control of this power reserve is the
task of the power amplifier’s voltage gain and
output stage circuitry, an area in which Mark
Levinson amplifiers have always excelled.
Balanced circuitry, another facet of our
design expertise, is readily apparent in the
N
º
433. However, rather than take the less
costly route of simply duplicating circuitry for
both halves of the balanced input signal, our
approach features an elegant new topology
for greater efficiency, higher performance,
and total sonic neutrality.
The Levinson Difference
All Mark Levinson power amplifiers benefit
from extraordinaryattention to circuit layout,
signal routing, and connector placement.
Engineers intimately familiar with each
circuit’s operation design circuit boards indi-
vidually, a practice that stands in sharp
contrast to the generic computer-generated
layouts used by many other compa-
nies. It is human insight and
disciplined intuition that
distinguishes the N
º
433 –
and all 400-series amplifiers
–and allows it to outperform
its predecessors.
Another factor in Mark Levinson excel-
lence is the array of the ultra-high
performance parts that populate our balanced
circuits. Even the circuit boarditself is of
prime importance as it allows these parts to
perform ideally under a wide range of
temperatures and humidity. Here, the
advanced material Arlon®provides a physical-
ly inert and sonically neutral base.
For the output sections, we’ve chosen bipolar
transistors with the best performance charac-
teristics and mounted them directly on the
exposed internal black-anodized aluminum
heat sinks for maximum heat dissipation.
In Summary
With its flexible triple-monaural design and
unique combination of brute force and
finesse, the N
º
433 perfectly augments the
400 series of amplifiers.
Accuracy.Reliability.Flexibility.The N
º
433
places Mark Levinson firmly in the multi-
channel world.
Nº433 interior.
N
º
433Triple-Mono PowerAmplifier
Rated power output: 200 W/ch rms power @ 8 Ω
400 W/ch rms power @ 4 Ω
all above power ratings from 20 Hz–20 kHz at <0.5% THD
(assuming that the AC mains can deliver adequate current, without its own voltage sagging)
Frequency response: within 0.2 dB from 20 Hz to 20 kHz
Signal-to-noise ratio: better than –80 dB (ref. 2.83 V)
Voltage gain: 26.8 dB
Input impedance: 100 kΩ(balanced)
50 kΩ(unbalanced)
Input sensitivity 2.83 V output: 130 mV
Full output: 1.82 V
Power consumption: 200 W in on,100 W in standby,10 W in sleep
Mains voltage: Determined by the needs of the country for which the unit was manufactured;
cannot be reset by dealer or user
Connector complement: (6) custom binding posts
(3) 3-pin XLR balanced input connectors
(3) RCA input connectors
(2) 1/8-inch mini-jacks for remote turn-on
(1) RS-232 port on RJ-11
(2) Mark Levinson communications ports on RJ-11, RJ-45
(1) IEC-standard AC receptacle
Output impedance: less than 0.05 Ωfrom 20-20,000 Hz
Overall dimensions: width: 17.75" (45.1 cm)
height: 7.65" (19.4 cm)
depth 19.83" (50.4 cm)
Shipping weight: 130.5 lb (59.2 kg)
Net weight: 114.5 lb (51.9 kg)
Specifications are subject to change without notice.
Nº433 capacitors
Nº433
channel assembly
©2005 Harman International Industries, Incorporated.
"Mark Levinson" is a registered trademark of Harman
International Industries, Incorporated. All rights reserved.
Not responsible for typographic errors.
Part # 072-17293
3Oak Park, Bedford, MA 01730-1413 USA
Tel: 781-280-0300 | Fax: 781-280-0490
www.marklevinson.com
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