Mark Levinson No.433 Manuale utente

Nº433

TRIPLE-MONO POWER AMPLIFIER

AMark Levinson Amplifier for the

Multi-Channel Age

The N

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

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

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

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

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

433 is convection cooled and utilizes

exposed internal heat sinks for each channel.

With basic design directly traceable to our

432 and N

431 dual-monaural power

amplifiers, the N

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

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

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

433 perfectly augments the

400 series of amplifiers.

Accuracy.Reliability.Flexibility.The N

433

places Mark Levinson firmly in the multi-

channel world.

Nº433 interior.

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

"Mark Levinson" is a registered trademark of Harman

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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