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Table of Contents
Related Manuals for Mark Levinson N33H
Summary of Contents for Mark Levinson N33H
- Page 1 Owner’ s Manual Nº33H Monaural Power Amplifier...
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Page 2: Important Safety Instructions
Important Safety Instructions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block ventilation openings. Install in accordance with the manufacturer’s instructions. 8. -
Page 3: Fcc Notice
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult an authorized Mark Levinson dealer or an experienced radio/TV technician for help. Caution! Changes or modifications not expressly approved by the party responsible for compliance could void the user’... -
Page 4: Documentation Conventions
Documentation Conventions This document contains general safety, installation, and operation instructions for the Nº33H Power Amplifier. It is important to read this document before attempting to use these components. Pay particular attention to safety instructions. Appears on the component to indicate the presence of uninsulated, dangerous voltages inside the enclosure –... -
Page 5: Table Of Contents
Table of Contents Unpacking ........2 Opening the Shipping Crate . -
Page 6: Unpacking
• inspect the Nº33H for signs of damage during shipment. If damage is discovered, contact an authorized Mark Levinson dealer for assistance making the appropriate claims. DO NOT attempt to lift the entire Nº33H at one time, even with two people. -
Page 7: Moving The Nº33H
4. Use a socket wrench to remove: Moving the Nº33H Please read and understand these instructions before attempting to move the Nº33H from the shipping crate base. 1. Position two people at the front of the Nº33H to support its 2. -
Page 8: Installation Considerations
Then, make sure the power cord is disconnected from the electrical outlet. Your Mark Levinson Nº33H power amplifier is designed to com- plement your listening room visually, with a tall and narrow frontal area that reduces the effective “footprint” and makes it far more presentable than would be the case with a more traditional- ly proportioned design. -
Page 9: Power Requirements
Caution! Do not attempt to adjust the operating voltage. Consult an authorized Mark Levinson dealer if the operating voltage is incorrect or if the operating voltage must be changed for relocation purposes. Be advised that different operating voltages may require the use of different power cords and/or attachment plugs. -
Page 10: Warm-Up & Break-In Period
Warm-up & Break-in Period Continuous Operation Note Building regulations and electrical codes differ from location to location, making it impossible to anticipate the require- ments of high-current AC circuits such as the Nº33H. Contact a local, licensed electrician for information. Although the Nº33H delivers superior performance from the first time it is powered on, this performance will continue to improve as various components “break in.”... -
Page 11: Special Design Features
Special Design Features While the Nº33H Monaural Power Amplifier is straightforward in everyday use, it includes several design features that are responsi- ble for its outstanding performance. In particular, it defies the accepted wisdom that it is impossible to design a large, powerful amplifier that also has all the finesse of the finest smaller ampli- fiers. -
Page 12: Fully Balanced Design
Fully Balanced Design True Voltage Source Extensive Protection A truly balanced input topology eliminates the need for an input buffer amplification stage, allowing the first stage differential amplifier to be driven directly by the source. Matched impedances are presented to the source and both signals travel through identical circuit paths. - Page 13 cycle the amplifier with the ~ac mains relay switch on the rear panel. In addition, the AC input to each transformer is fused to protect against excessive current conditions such as driving shorted outputs. In-rush limiting prevents premature aging of power supply components during power-up, and switches to off-line once the power supply has been charged.
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Page 14: Front Panel
Front Panel 1. standby button When power is first applied to the Nº33H power amplifier, and assuming the rear panel AC mains switch is set to its on posi- tion, the amplifier remains completely off. Press the front panel standby button to bring the amplifier from completely off to standby. -
Page 15: Rear Panel
“earth ground” of the power cord. Danger! Dangerous voltages and current capabilities exist within the Nº33H, even when the power cord is unplugged. There are no user-serviceable parts inside the amplifier. Refer all servicing to an authorized Mark Levinson dealer. balanced single ended inputs CAUTION... - Page 16 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.
- Page 17 5. loudspeaker binding posts (outputs) Provide audio output. Two pair of custom-made, gold-plated, high-current binding posts labeled + (positive) and – (nega- tive) are included. Positive binding posts are red; negative binding posts are black. These binding posts are designed to facilitate high pressure, high contact area connections without the use of tools such as nut drivers.
- Page 18 The slave in communication port can be connected to a compatible Mark Levinson preamplifier that offers Link or communication ports. The slave out communication ports can be connected to a compatible Mark Levinson power amplifier that offers Link or Note Refer to “Linking”...
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Page 19: Linking
Linking Linking is available for all Mark Levinson components that offer Link or slave out, ports. These communication ports can be used to “link” compatible Mark Levinson components in a slave chain, allowing them to share Link controls. The Nº33H offers two Link communication ports labeled slave in and slave out. -
Page 20: Constructing Link Communication Cables
When linking components with constructed Link communication cables, twist the cable 180˚ as shown in the illustration below for a straight-through (pin 1-to-pin 1) connection. Note Contact an authorized Mark Levinson dealer for additional assistance with making Link connections. Mark Levinson Preamplifier... - Page 21 However, slave chains can also include digital audio processors and digital transports. Refer to the appropriate documentation for information about including these Mark Levinson components in a slave chain. The table below indicates slave chain requirements for preamplifiers and power amplifiers.
- Page 22 4. Take the linked preamplifier out of standby. • All linked power amplifiers should come out of standby as well. If this does not occur, repeat steps 3 and 4. If problems persist, contact an authorized Mark Levinson dealer.
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Page 23: Link Controls
Power amplifier fault condition codes are described in the table to the right. Linking Mark Levinson components allows them to share certain controls. The table below provides a general description of controls the Nº33H shares with other linked components. Some controls may not be available for certain component combinations. -
Page 24: Troubleshooting
A fuse may be blown inside the Nº33H. In this case, disconnect the power cord from the electrical outlet. Then, contact an authorized Mark Levinson dealer. Do not attempt to replace the fuse. There are no user-serviceable parts within the Nº33H. - Page 25 6. If all else fails... • Power cycle the Nº33H with the rear panel ~ac mains relay switch, waiting at least 10 seconds between powering the Nº33H off and on. • Contact an authorized Mark Levinson dealer.
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Page 26: Care & Maintenance
Caution! Care & Maintenance To remove dust from the cabinet of your Nº33H, use a feather duster or a lint-free soft cloth. To remove dirt and fingerprints: 1. Dampen a soft, lint-free cloth with isopropyl alcohol, then lightly clean the surface of the unit with the cloth, moving with the “grain”... -
Page 27: Specifications
220 pounds (100 kg) Four custom binding posts One 3-pin XLR balanced input connector One RCA input connector Two 1⁄8" mini-jacks for remote turn-on Two Mark Levinson communications ports on RJ-11 One captive high-current AC receptacle Less than 0.05 from 20–20,000Hz... -
Page 28: Dimensions
Dimensions... -
Page 29: Declaration Of Conformity
Bedford, MA 01730-1413 USA The equipment identified here conforms to the Directive(s) and Standard(s) specified above. Type of Equipment: Monaural Power Amplifier Models: Mark Levinson Nº33H Date: January 2005 Harman Specialty Group Vice President of Engineering 3 Oak Park Bedford, MA 01730-1413 USA... -
Page 30: Notes
Notes... - Page 32 3 Oak Park, Bedford, MA, 01730-1413 USA | Telephone: 781-280-0300 | Fax: 781-280-0490 | www.marklevinson.com Customer Support: Telephone: 781-280-0300 | Sales Fax: 781-280-0495 | Service Fax: 781-280-0499 Product Shipments: 16 Progress Road, Billerica, MA 01821-5730 USA Part No. 070-630273 | Rev 3 | 02/05...
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