Nº436 & Nº434
MONO POWER AMPLIFIERS
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Nº434
the Mark Levinson power amplifier tradition.
The power supply is the foundation that all of
the audio circuitry is built upon. Both amps
benefit from a massive, dedicated, independ-
ent linear power supply. Our ongoing
listening tests continue to confirm that abun-
dant clean power is essential for high
performance. Precise control of this power
reserve is the task of the amplifier's voltage
gain and output stage circuitry. Mark
Levinson amplifiers have always featured
precision circuitry designed to fully exploit
balanced signals. Rather than adding op-amp
buffers, or simply duplicating circuitry for
both halves of the balanced input signal as
many other amplifiers do, Mark Levinson
amplifiers feature an advanced, inherently
balanced topology for greater efficiency,
performance and sonic benefits. The Nº436
and Nº434 have power ratings of 350 and
125 watts into 8 Ohms, and 700 and 250
watts into 4 Ohms, respectively.
program. These new amplifiers outperform
their predecessors in part because of the
refinement of circuit layout. Additionally, the
ultra high performance parts that make up
the balanced circuits are able to work to their
full potential because they reside in the most
neutral circuit board material known as Arlon
25. The output stage of these new amplifiers
is similar to our other power amplifiers. The
matched output transistors continue to be the
best performing parts available for this appli-
cation and they are mounted directly to the
exposed internal black anodized aluminum
heat sinks.
The Nº436 and Nº434 set a new standard for
multi-channel and theater audio. Powerful,
elegant, and musical, these remarkable prod-
ucts
combine
stunning
audiophile
performance and system flexibility without
compromise.
As with all Mark Levinson amplifiers, particu-
lar attention is paid to the layout and circuitry
connections. All circuit boards are laid out by
our engineers rather than by a computer
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Nº436
Nº436/434 Mono Power Amplifiers
Rated power output:
Nº436
350W/ch continuous rms power @ 8Ω
700W/ch continuous rms power @ 4Ω
Nº434
125W/ch continuous rms power @ 8Ω
250W/ch continuous rms power @ 4Ω
all above power ratings measured as continuous (rms) power from 20Hz–20kHz with no more than
0.5% THD (assuming that the AC mains can deliver adequate current, without its own voltage sagging)
Frequency response:
within 0.3dB from 20Hz to 20kHz
Signal-to-noise ratio
(main outputs):
better than –80dB (ref. 1W, 8Ω)
Voltage gain:
26.8dB
Input impedance:
100kΩ (balanced)
50kΩ (single-ended)
Input sensitivity:
Nº436
2.42V for full rated output
Nº434
1.44V for full rated output
Output impedance:
Power consumption:
less than 0.05Ω from 20Hz to 20kHz
Nº436
typically 525 watts ( 5%) on
typically 100 watts ( 5%) in standby
Nº434
typically 275 watts ( 5%) on
typically 100 watts ( 5%) in standby
Mains voltage:
100V, 120V, 200V, 220V, or 240V at either 50 or 60Hz, factory set for destination country
Connector complement:
(1) pair custom binding posts
(1) balanced input on XLR
(1) single-ended input on Madrigal RCA
(1) 3.5mm trigger out jack
(1) 3.5mm trigger in jack
(1) RJ-45 communications port (Mark Levinson Linking™)
(1) RJ-11 communications port (Mark Levinson Linking™)
(1) RS-232 communications port on RJ-11
(1) IEC-standard AC receptacle
Overall dimensions:
Nº436
width: 17.75" (45.1cm)
height: 7.65" (19.4cm)
depth: 20.21" (51.3cm)
Nº434
width: 17.75" (45.1cm)
height: 5.91" (15.0cm)
depth: 20.21" (51.3cm)
Shipping weight:
Nº436 95lb
(43.7kg) each
Nº434 65lb
(29.9kg) each
Specifications are subject to change without notice.
Specifications are subject to change without notice.
Mark Levinson® is a registered trademark of
Harman International Industries, Incorporated.
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Not responsible for typographic errors.
Part # 072-16385
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