The Mark Levinson

Mark Levinson

The company Mark Levinson, now owned by Madrigal Audio Laboratories specializes in high-end digital audio processors, integrated amplifiers, power amplifiers, pre amplifiers, and CD players...

 ML-3 is a 200 watt per channel dual monaural

Monaural

Monaural or monophonic sound reproduction is single-channel. Typically there is only one microphone, one loudspeaker, or channels are fed from a common signal path...

 Class AB2 power amplifier

Amplifier

Generally, an amplifier or simply amp, is a device for increasing the power of a signal.In popular use, the term usually describes an electronic amplifier, in which the input "signal" is usually a voltage or a current. In audio applications, amplifiers drive the loudspeakers used in PA systems to...

 that uses toroidal

Toroid

Toroid may refer to*Toroid , a doughnut-like solid whose surface is a torus.*Toroidal inductors and transformers which have wire windings on circular ring shaped magnetic cores.*Vortex ring, a toroidal flow in fluid mechanics....

 transformers. Produced between 1979 and 1987 the ML-3 is two electrically separate amplifiers in one chassis

Chassis

A chassis consists of an internal framework that supports a man-made object. It is analogous to an animal's skeleton. An example of a chassis is the underpart of a motor vehicle, consisting of the frame with the wheels and machinery.- Vehicles :In the case of vehicles, the term chassis means the...

, hence the name "Dual Monaural". It also featured discrete circuit construction, no integrated circuits were incorporated in order to keep the signal

Signal (computing)

A signal is a limited form of inter-process communication used in Unix, Unix-like, and other POSIX-compliant operating systems. Essentially it is an asynchronous notification sent to a process in order to notify it of an event that occurred. When a signal is sent to a process, the operating system...

 pure.
Archetype of American highend, highpower amplifier.
Design credit: Thomas P. Colangelo

Specifications

• 200 W/ch @ 8 ohms, 400 W/ch @ 4 ohms, 800 W/ch @ 2 ohms
• Maximum output: 45 volts 30 amperes
• Two 1.2 kVa Avel Lindbergh torodial transformers, 4 Sprague
  Sprague
  Sprague is a surname of English origin, from the northern Middle English Spragge, either a personal name or a byname meaning "lively", a metathesized and voiced form of Spark, a Northern English surname from the Old Norse byname or personal name Sparkr ‘sprightly’, ‘vivacious’.- Places :Canada*...
  
   36,000 µF, 100 V capacitors and 40 output devices (20 per channel)
• Range: 20 Hz to 20 kHz with less than 0.2% total harmonic distortion
  Total harmonic distortion
  The total harmonic distortion, or THD, of a signal is a measurement of the harmonic distortion present and is defined as the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency...
  
  
• Gold-plated CAMAC
  LEMO
  LEMO is both the name of an electronic and fibre optic connector manufacturer based in Switzerland, and the name commonly used to refer to push-pull connectors made by that company, which are used in medical, industrial, audio/visual, telecommunications, military, scientific research and...
  
  input connectors
• Adjustable AC voltage: No, factory set
• Adjustable output damping toggle switches (one per channel) (in later models only)
• Weight: 116 lb (56 kg)