Madrigal Imaging N33, power amplifier manual Operating Voltage

Important:

Operating Voltage

Your Mark Levinson Nº33 Reference Monaural Power Amplifier is characterized by its remarkable ability to pass a musical signal with utter integrity, regardless of how demanding that signal and the loudspeakers used might be. When called upon to do so, the Nº33 is capable of generating truly prodigious power levels into virtually any speaker load, on either an instantaneous or a continuous basis.

Depending on the demands placed on the Nº33 by your loudspeaker and your listening habits, it is possible for the quality and current capability of your electri- cal service to become the limiting factor in the performance of your system. Given its status as a Reference product, any such limitation (even if only rarely encountered) is unacceptable. As a result, the Nº33 has been designed to be ca- pable of taking advantage of dedicated high current AC mains supplies which cannot limit its performance. The Nº33 may be ordered in either a High Current (HC) or an Ultra High Current (UHC) configuration, depending on the require- ments of any given installation. (Due to CE regulations, only the UHC, 230V ver- sion of the Nº33 is available in European Union countries.)

The UHC configuration of the Nº33 accepts a dedicated high voltage (200–240 volts, depending on the country), high current (30–35 amperes, depending on local electrical codes) AC power source. These high current lines are commonly used in residential construction for electric stoves, clothes driers, and other de- manding appliances, making their installation fairly routine for any electrical con- tractor… although this may be the first time your contractor has installed such lines for a stereo system!

When it comes to high voltage/high current AC wiring such as the Nº33 may use, building regulations and electrical codes vary from region to region, and even from one municipality to the next. For this reason, it is impossible for us to anticipate the requirements of your area with regard to high current AC hookups. Please review this section carefully and then contact a local electrical contractor for advice on connecting your Nº33 to the AC mains power in your area.

The Mark Levinson Nº33 amplifiers may be factory-set for 100V, 120V, 200V, 210V, 220V, 230V or 240V AC mains operation at either 50 or 60Hz. Depending on local electrical codes and regulations, the plug on the supplied AC input module may need to be replaced by a local, licensed electrical contractor. The maximum cur- rent requirements at these various voltages under various test conditions are listed in the table shown on the next page.

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