Mark Levinson N33H owner manual ~ac mains relay switch, Balanced input, Single-ended input

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2. ~ac mains relay switch

The AC mains switch turns the amplifier completely off by disconnecting the supervisory power supply from the AC mains. Since this small supervisory supply controls the main power supply access to AC power, shutting down the supervi- sory power supply also disconnects the main supply from AC.

3. balanced input

Receives balanced audio input from the associated preamplifier. One XLR connector is available.

For best performance, use balanced connections whenever possible. Refer to the illustration below and to the associated preamplifier documentation to ensure that Nº33H XLR input pin assignments correspond to the associated preamplifier XLR output pin assignments. If not, wire the cable so that the appropriate input pin connects to the appropriate output pin.

Pin 1: Signal ground

Pin 2: Signal + (non-inverting)

Pin 3: Signal – (inverting)

Connector ground lug: chassis ground

Note

Before making balanced connections, remove the U-shaped shorting-strap between pins 1 and 3 on the Nº33H XLR input and save it for possible future use. This shorting-strap is installed when the Nº33H is shipped.

4. single-ended input

Receives unbalanced audio input from a preamplifier with sin- gle-ended outputs. These signals are converted to balanced sig- nals upon entering the chassis and processed as balanced sig- nals thereafter. One RCA connector is available.

If the associated preamplifier does not support balanced connections, connect the RCA output on the preamplifier to the RCA input on the Nº33H. To reduce the chance of noise at the (otherwise unterminated) inverting XLR input, insert the supplied U-shaped shorting strap between pins 1 and 3. (This shorting strap is installed when the Nº33H is shipped.)

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Contents Nº33H Monaural Power Amplifier Important Safety Instructions FCC Notice Documentation Conventions Table of Contents Unpacking Opening the Shipping CrateMoving the Nº33H Product Registration Placement Installation ConsiderationsVentilation Power Requirements Warm-up & Break-in Period Continuous Operation Special Design Features Massive Power Supply AC Power RegenerationPage Page Front Panel Indicator LEDStandby button Rear Panel ~ac mainsBalanced input ~ac mains relay switchSingle-ended input Loudspeaker binding posts outputs Slave in & slave out communication ports Remote turn-on jacksLinking Making Link ConnectionsAll slave chains Component Requirements & Connections To create a slave chain that includes the Nº33HNº320S Preamplifier Power Amplifier Link ControlsNo audio and the front panel indicator LED is not lit TroubleshootingNo audio and the front panel indicator LED is dimly lit Nº33H keeps powering off If all else failsCare & Maintenance Specifications All specifications are subject to change at any timeDimensions Declaration of Conformity ManufacturerType of Equipment ModelsPage

N33H specifications

The Mark Levinson N33H is a premier high-fidelity power amplifier designed for audiophiles who demand the best in sound quality and performance. Renowned for its exceptional engineering and innovative technologies, the N33H stands out in the landscape of luxury audio components.

At its core, the N33H features a robust Class H amplification architecture, which optimizes efficiency and minimizes heat generation while delivering an impressive output power. This design allows the amplifier to react dynamically to musical demands, providing a powerful yet refined sound across various frequencies. With a stable 200 watts per channel at 8 ohms and 400 watts at 4 ohms, the N33H can effortlessly drive a wide range of speakers, ensuring a rich listening experience.

One of the hallmark characteristics of the N33H is its proprietary Pure Class A circuitry in the input and driver stages. This ensures that the amplifier maintains an extraordinarily low level of distortion, delivering crystal-clear audio reproduction even at high volumes. The signal path in the N33H is meticulously designed to preserve audio fidelity, utilizing high-quality components throughout, including precision resistors and capacitors that contribute to its superior soundstage.

The N33H also integrates sophisticated power supply technologies, featuring a dual-transformer configuration that provides stable and clean power, reducing noise and enhancing overall performance. The advanced power management system ensures that the amplifier operates within optimal parameters, further improving sound quality and reliability.

Connectivity options on the N33H are abundant, designed to accommodate modern audio setups. It features balanced XLR and unbalanced RCA inputs, allowing seamless integration with various audio sources. Furthermore, the amplifier includes both traditional speaker binding posts and the option for bi-wiring, providing flexibility in speaker connection.

In terms of design, the Mark Levinson N33H boasts a sleek, elegant chassis that reflects the brand’s commitment to aesthetics as well as performance. The front panel features a minimalist design with a discreet display for signal and operation status, maintaining a sophisticated look suitable for any high-end audio system.

Overall, the Mark Levinson N33H stands as a testament to the brand’s dedication to creating high-performance audio components. With its innovative technologies, exceptional sound quality, and refined design, the N33H is an amplifier that meets the demands of both serious audiophiles and music enthusiasts alike. Whether for a home theater setup or a dedicated listening room, the N33H offers an unrivaled auditory experience that elevates music to new heights.
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