Mark Levinson Mark Levinson No 536 Monoaural Amplifier

Mark Levinson No 536 Monaural Amplifier Overview

A subsidiary of Harman International, Mark Levinson engineers some of the finest high-end audiophile equipment available. The behemoth No. 536 monaural power amplifier delivers a single channel of 400 watts continuous power, but that’s only the beginning. It delivers that power with rock-solid stability into any speaker load, right down to 2 ohms. It delivers it from two-tenths (!) of 1 Hz up to 120kHz and beyond. If you can ever succeed in making the No. 536 reach its limits, it clips the signal cleanly, without harmful ringing or oscillating. With the highest engineering attention paid to the signal’s end-to-end integrity – a circuit design the manufacturer calls Pure Path – you get flawless reproduction of the most demanding music or movies, with the most demanding signals and speakers, for the most demanding listener: you.

Product Information

Product highlights

  • Power output 400 watts RMS @ 8 ohms, 800 watts @ 4 ohms
  • Stable down to 2-ohm loads
  • Balanced and unbalanced source inputs
  • Pure Path circuit design with folded cascode engineering, high bias current and low negative feedback
  • Ultra-low noise, custom wound toroidal transformer
  • Military-grade electronic components
  • Aircraft-grade extruded aluminum chassis
  • Dual gold-plated speaker binding posts for bi-wiring applications
  • Full custom system integration with 12-volt trigger, Ethernet/IP, RS-232 and USB control, with web-based configuration
  • Designed and handcrafted in the USA
  • Dimensions: 7.75" high x 17.75" wide x 20" deep
  • Weight: 100 lbs.
  • Warranty: 5 years – World Wide Stereo is an authorized dealer for every brand we sell
  • Included: World Wide Stereo 60-day guarantee and expert product support

Pure Path Design

The name Pure Path itself seems self-explanatory – make sure as little of the signal path as possible interferes with the purity of the output. But the engineering is anything but elementary. There are three specific elements to this engineering feat: folded cascodes, high bias current, and low negative feedback. If you’re interested, read on – or if not, feel free to jump right to the bottom line.

Folded cascode arrays

Levinson engineers group together several types of military-grade transistors in such a way that they complement one another’s best characteristics, and then feed that output into another circuit to turn the current flow in the opposite direction, an operation that results in high gain with incredibly low distortion and wide bandwidth. Basically, it supplies some of the cleanest, most stable wattage you can get from an amp.

High bias current

Transistors need a certain amount current to operate. And amplifier designers add varying amounts of a separate current called “bias” to keep components running through an audio signal’s entire positive-to-negative cycle. Feed in enough bias, and you have what’s called a Class A type amp, which supplies the purest power output – but is also the least efficient, generating huge amounts of heat for not much wattage. Most modern amps are Class AB, pairing up transistors to handle separate parts of the cycle, and applying less bias to each. The industrial-strength engineering of No. 536 allows Levinson to apply more bias to its Class AB circuitry, which means more of your listening experience rises to pure Class A level.

Low negative feedback

Amp designers use a trick called a “negative feedback loop” – that is, reversing a portion of the signal and feeding it back into the original – to reduce distortion introduced in the amplification process. It works, but can create its own nonlinearities. Levinson’s Pure Path innovations and the finest-quality components lead to improved “open-loop” performance, allowing for less negative feedback with precise targeting. Again, this means wide bandwidth and high power with vanishingly low distortion and incredible stability.

Built like the proverbial tank

It’s big, and it’s heavy, and no expense is spared in outfitting the No. 536 with industrial and military-grade discrete transistors, resistors and capacitors, for tight tolerances, rock-solid stability and rugged longevity. And it’s designed and manufactured right in Mark Levinson’s New England facilities.

Outfitted for custom installation

You get inputs for balanced and unbalanced sources, multiple network connections and triggers for integration with whole-home automation solutions and wireless configuration, and top-notch “hurricane” gold-plated speaker binding plugs built for bi-wiring of suitable speaker systems.

The bottom line

An amplifier of the sonic superiority of the Levinson No. 536 can’t be described in mere words; it really has to be experienced to be understood. That’s why Stereophile, the golden ears’ bible, in its review by Larry Greenhill, called the No. 536’s “soundstaging, imaging, speed, and wide-ranging dynamic contrasts … spellbinding, equaled by only one or two other amplifiers in memory,” and named the monoblock amp one of its coveted Class A Recommended Components. At World Wide Stereo's Ardmore, PA showroom, we’ve integrated Mark Levinson amplifiers with equipment from Harman corporate cousin JBL, into a single, stunning Synthesis cinema system. We cordially invite you to stop by and experience what we consider to be the ultimate home theater installation, and we know you’ll be convinced.
Prop 65 Warning

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

Specifications

Specifications

  • Input connectors: One balanced, one single-ended
  • Speaker connectors
    • Two pairs of hurricane loudspeaker outputs
    • Banana-plug sockets per channel
  • Control I/O: Ethernet, RS-232, Trigger In and Out, USB-A, Mini USB
  • Rated output power: 400wpc RMS @ 8Ω, 20Hz to 20kHz @ <0.3% THD, full output from 2.83V RMS
  • Frequency response: 10Hz to 20kHZ ± 0.2dB
  • Signal-to-noise ratio: >85dB, reference level: 2.83V RMS
  • Input impedance: 60kΩ balanced; 30kΩ unbalanced
  • Voltage gain: 26dB
  • Input sensitivity: 2.83V RMS output at 142mV RMS input
  • Power requirements: 100V~, 120V~, 230V~, 1500W
  • Dimensions (H x W x D): 7.75" x 17.75" x 20"
  • Weight: 100 lbs.

What's in the Box

What's in the Box:

  • No 536 Monoaural Amplifier
  • Owner's manual
  • Handling gloves
  • Power cable

Documents

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Prop 65 Warning

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.

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