No 53 Reference Power Amplifier

Input and output connectors

One balanced XLR input

 

One unbalanced RCA input

 

Two pairs of “Hurricane” loudspeaker output binding

 

posts with banana-plug sockets (banana-plug socket

 

not available for some models)

 

 

Control connectors

Two Link2 ports (one input and one output)

 

One Ethernet port

 

One 3.5mm mono (tip/sleeve) mini plug trigger

 

input, 3-12Vdc

 

One 3.5mm mono (tip/sleeve) mini plug trigger

 

output, 3-12Vdc

 

3-Pin IEC standard power connector

 

 

Rated output power

500W @ 8Ω, 1000W @ 4Ω

This side view shows the four different compartments of the amplifier: the power supply section at the bottom, the middle section with the four amplifiers, the top section with the control circuitry (modulator), and a separate enclosed box (top left) that houses the analog input board.

 

Power ratings are measured as RMS power from

 

20Hz to 20kHz with no more than 0.1% THD

 

 

Frequency response

Within +0.1dB from 10Hz to 20kHz

Signal-to-noise ratio

–85dB, reference level: 2.83 Vrms (1W @ 8Ω)

 

 

Input impedance

100 kΩ (balanced); 50 kΩ (unbalanced)

 

 

Voltage gain

26.8dB

 

 

Input sensitivity

2.89V for maximum rated output power

 

 

Power requirements

100V~, 120V~, 230V~, 640W, factory-set

 

for destination country

 

 

Dimensions

Height: 20-3/8" (530mm)

 

Width: 8-7/16" (214mm)

 

Depth: 20-3/8" (518mm)

 

 

Weight

Net weight: 135 lb (61.3kg)

 

Shipping weight: 165 lb (75kg)

 

 

Operating environment

Operating temperature: 0º to 35ºC (32º to 95ºF)

 

Storage temperature: –30º to 75ºC (–22º to 167ºF)

 

Relative humidity: 95% maximum without condensation

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Mark Levinson No. 53 manual No 53 Reference Power Amplifier

No. 53 specifications

The Mark Levinson No. 53 is a state-of-the-art power amplifier that epitomizes high-end audio engineering and design. This amplifier stands as a testament to the brand’s commitment to delivering uncompromising audio fidelity, allowing music enthusiasts and audiophiles alike to experience sound as the artist intended.

One of the primary features of the No. 53 is its impressive power output, delivering up to 300 watts per channel into 8 ohms and an astounding 600 watts per channel into 4 ohms. This robust power ensures that even the most demanding speaker systems are driven effortlessly, providing clarity and dynamics across a wide range of musical genres.

The No. 53 employs cutting-edge Class AB amplification technology. Class AB design balances the efficiency of Class A with the power output characteristics of Class B, resulting in minimal distortion and exceptional audio quality. The unique topology and meticulous engineering behind this amplifier allow it to reproduce both the subtle nuances of a soft piano passage and the explosive energy of a full orchestral crescendo without compromising fidelity.

Another hallmark of the No. 53 is its discrete, dual-mono design. By utilizing individual power supplies and amplification circuits for each channel, the amplifier maximizes separation and reduces crosstalk. This dual-mono configuration contributes to an expansive and immersive soundstage, enabling listeners to perceive spatial elements in their music more clearly.

The construction quality of the No. 53 is exemplary, featuring a rigid aluminum chassis that minimizes vibration and external interference. The internal components are carefully selected to ensure longevity and reliability, while also being optimally housed to provide the best operational environment. Additionally, it includes a sophisticated thermal management system, which safeguards the amplifier from overheating during extended use.

Connectivity options on the No. 53 are versatile, featuring both balanced XLR and unbalanced RCA inputs. This allows for seamless integration into high-end audio systems, accommodating various setups without sacrificing performance.

In summary, the Mark Levinson No. 53 is not just an amplifier; it is a sophisticated audio solution designed for those who seek ultimate sound reproduction. With its powerful output, advanced Class AB technology, and meticulous engineering, it embodies the pinnacle of audio excellence, making it a coveted piece for any serious music aficionado.