Mark Levinson N33H Manuel utilisateur

Owner’s Manual

Nº33H

Monaural

Power Amplifier

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. Do not install near any heat sources such as radiators, heat registers, stoves, or another apparatus

that produces heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has

two blades with one wider than the other. A grounding-type plug has two blades and a third

grounding prong. The wide blade or third prong is provided for safety. If the provided plug

does not fit into the outlet, consult an electrician for replacement of the obsolete outlet.

10. The MAINS cord is intended to be the safety disconnect device for this apparatus. Ready access

to the MAINS cord shall be maintained at all times.

11. Protect the power cord from being walked on or pinched, particularly at plugs, convenience

receptacles, or the point where it exits from the apparatus.

12. Only use attachments and accessories specified by the manufacturer.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has

been damaged in any way, such as when the power cord or plug has been damaged; liquid has

been spilled or objects have fallen into the apparatus; or the apparatus has been exposed to

rain or moisture, does not operate normally, or has been dropped.

15. Ventilation should not be impeded by covering the ventilation openings with items such as

newspapers, table cloths, curtains, etc.

16. No naked flame sources, such as candles, should be placed on the apparatus.

17. Terminals marked with this symbol may be considered HAZARDOUS LIVE and the

external wiring connected to these terminals requires installation by an INSTRUCTED

PERSON or the use of ready-made leads or cords.

Warning!

To reduce the risk of fire or electric shock, do not expose the apparatus to rain or moisture. Do

not place objects containing liquid, such as vases, on this apparatus.

Important Safety Instructions

FCC Notice

This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference in a residential installation. This equipment generates, uses, and can

radiate radio frequency energy and, if not installed and used in accordance with the instructions,

may cause harmful interference to radio communications. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment does cause harmful

interference to radio or television reception, which can be determined by turning the equipment

off and on, the user is encouraged to try to correct the interference by one or more of the following

measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• 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’s authority to operate the equipment.

Canada

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

3 Oak Park

Bedford, MA 01730-1413 USA

Telephone: 781-280-0300

Fax: 781-280-0490

www.marklevinson.com

Customer Service

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

“Mark Levinson” and the Mark Levinson logo are registered trademarks

of Harman International Industries. U.S. patent numbers and other

worldwide patents issued and pending.

“Madrigal Audio Laboratories” and the Madrigal Audio Laboratories

logo are registered trademarks of Harman International Industries.

U.S. patent numbers and other worldwide patents issued and pending.

This document should not be construed as a commitment on the

part of Harman Specialty Group. The information it contains is

subject to change without notice. Harman Specialty Group assumes

no responsibility for errors that may appear within this document.

iii

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 – voltages that may be

sufficient to constitute a risk of shock.

Appears on the component to indicate important

operation and maintenance instructions

included in the accompanying documentation.

Appears on the component to indicate

compliance with the EMC (Electromagnetic

Compatibility) and LVD (Low-voltage Directive)

standards of the European Community.

Warning! Calls attention to a procedure, practice,

condition, or the like that, if not correctly

performed or adhered to, could result in

personal injury or death.

Caution! Calls attention to a procedure, practice,

condition, or the like that, if not correctly

performed or adhered to, could result in

damage or destruction to part or all of the

component.

Note Calls attention to information that is essential to

highlight.

Table of Contents

Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Opening the Shipping Crate . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Moving the Nº33H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Product Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . .4

Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Warm-up & Break-in Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Continuous Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Special Design Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Massive Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

AC Power Regeneration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Fully Balanced Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

True Voltage Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Extensive Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Linking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Making Link Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Constructing Link Communication Cables . . . . . . . . . . . . . . . . .16

Creating a Slave Chain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Link Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Care & Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . .25

Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Unpacking

Warning! DO NOT attempt to lift or move the Nº33H without adequate

assistance. Failure to follow the procedures included in this

owner’s manual may result in personal injury and/or product

damage.

The shipping weight of each Nº33H Monaural Power Amplifier is

approximately 220 pounds (100 kg). To avoid injury, handle the

Nº33H with extreme care. At least two strong people are required

to unpack the Nº33H amplifier from its shipping crate.

Two pair of knit, white gloves with special gripping surfaces on

the palms and fingers are included with your new Nº33H. Please

wear these gloves when lifting and moving the amplifier.

When unpacking the Nº33H:

•DO keep the Nº33H shipping crate upright at all times, as

indicated by the arrows on the outside of the crate. The

Nº33H shipping crate is modular in design to facilitate the

unpacking process.

•DO save all screws and packing materials for possible future

shipping needs.

•DO 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.

Caution! DO NOT attempt to lift the entire Nº33H at one time, even with

two people. Always lift one end ONLY, leaving the other end

supported by the base of the shipping crate or the floor.

DO NOT try to lift the Nº33H while bending at the waist. When

lifting, keep your back straight and use your leg muscles to lift.

Opening the Shipping 1. Carefully cut the nylon straps around the crate. Note that

Crate the straps may be under tension, causing them to snap

outward when cut. To avoid personal injuries, keep your face

and body as far as possible from the box when cutting each

strap.

2. Remove the screws securing the top of the crate to the base.

3. Lift the top of the crate upward until it clears the top of the

Nº33H. Then set the top of the crate aside.

4. Use a socket wrench to remove:

• The four 9/16-inch hexagonal-head bolts that secure the

Nº33H to the base of the crate. These bolts attach directly

to the bottom of the Nº33H’s feet and are accessible

underneath the pallet on which the Nº33H sits.

• The two 9/16-inch hexagonal-head bolts that hold the

retaining bar in place.

Moving the Nº33H Please read and understand these instructions before attempting

to move the Nº33H from the shipping crate base.

Note:

Protect delicate floor surfaces before moving the Nº33H off

the crate and onto the floor.

1. Position two people at the front of the Nº33H to support its

weight; a third person may be needed to hold the base of the

crate in place while the Nº33H is moving.

2. When all people are in position, carefully slide the Nº33H off

of the crate’s base and onto the floor.

As the front of the Nº33H clears the front edge of the crate,

the two people positioned at the front of the Nº33H must

begin to support its weight. To do this, use the “handle” built

into the sculpted faceplate (located just above the Mark

Levinson logo) or the front heat sinks.

3. Continue to slide the Nº33H forward until its center section

clears the front edge of the base. Then lower the front of the

Nº33H to the floor.

At this point, the floor should support the front of the Nº33H

and the base of the crate should support the rear.

4. Position two people at the rear of the Nº33H; a third person

may be needed to slide the base of the crate out from

underneath the Nº33H.

5. Grip the rear heat sinks. Then lift the rear of the Nº33H,

leaving the front supported by the floor.

6. When the rear of the Nº33H is lifted, slide the base of the

crate out from underneath the Nº33H, then carefully lower

the rear of the Nº33H to the floor.

Product Registration Please register your Nº33H Monaural Power Amplifier within 15

days of purchase. Register online at www.marklevinson.com or

complete and return the included product registration card. Retain

the original, dated sales receipt as proof of warranty coverage.

Installation Considerations

The Nº33H requires special care during installation to ensure

optimal performance. Pay particular attention to the information

included in this section.

Placement Your Mark Levinson Nº33H Monaural Power Amplifiers are specifi-

cally designed to stand on the floor, and must be used as free-

standing units. In most installations, locating them near the loud-

speakers is best. Obviously, this approach minimizes the length of

the speaker wires and necessitates longer interconnecting cables

from the preamplifier to the power amplifiers. The advantage to

this strategy is that that the interconnecting cables carry low-cur-

rent signals which are more readily transmitted over distances

with great accuracy than are the necessarily high current signals

required by loudspeakers.

You should leave at least six inches (15 cm) of free space behind

each Nº33H so that the AC cord and connecting signal cables

have sufficient room to bend without crimping or undue strain.

You should also position each amplifier for easy access to the rear

panel power switch. This switch effectively disconnects the ampli-

fier from the AC mains.

Caution! Before moving the Nº33H, make sure it is powered off with the

rear panel power switch. Then, make sure the power cord is

disconnected from the electrical outlet.

Ventilation 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. As a result, it can be more easily placed

beside your loudspeakers. As freestanding units, the Nº33H ampli-

fiers normally will have no problem with ventilation. Please fol-

low the precautions below.

•DO select a dry, well-ventilated location out of direct sunlight.

•DO ensure free air flow around the Nº33H to allow for

adequate heat dissipation through air circulation.

•DO keep the top plate and heat sinks free from obstructions

that could reduce air circulation.

•DO use fans to increase air circulation if the Nº33H is

installed in an enclosed space.

•DO NOT place the Nº33H on a thick rug or carpet or cover

the Nº33H with a cloth, as this might prevent proper cooling.

•DO NOT expose the Nº33H to high temperatures, humidity,

steam, smoke, dampness, or excessive dust. Avoid installing

the Nº33H near radiators and other heat-producing appliances.

Note

Each Nº33H dissipates about 360 watts of heat energy when

idle; it is normal and safe for it to run warm.

Power Requirements

When shipped, the Nº33H is configured for 100V, 120V, 220V,

230V or 240V AC power operation at 50 or 60Hz based on the

country for which it is manufactured. Before operating the Nº33H,

make sure the ~ac mains connector label indicates the correct

operating voltage for the current location.

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. Contact

an authorized Mark Levinson dealer for assistance.

Your Mark Levinson Nº33H Monaural Power Amplifier is charac-

terized by its remarkable ability to pass a musical signal with utter

integrity, regardless of how demanding that signal and the loud-

speakers used might be. When called upon to do so, the Nº33H is

capable of generating truly prodigious power levels into almost

any speaker load, on either an instantaneous or a continuous

basis.

Depending on the demands placed on the Nº33H by your loud-

speaker and your listening habits, it is possible for the quality and

current capability of your electrical service to become the limiting

factor in the performance of your system.

In this case, consider installing a dedicated AC circuit for your

amplifiers. Contact a licensed electrician for assistance. If more

than one AC circuit is providing power to the system, contact a

licensed electrician to ensure that all components are operating

with the same solid, low-impedance ground reference.

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.

Warm-up & Break-in Although the Nº33H delivers superior performance from the

Period first time it is powered on, this performance will continue to

improve as various components “break in.” You should notice the

greatest performance improvements within the first 25 to 50

hours of use. The amplifier should continue to improve in sound

quality for approximately 300 hours.

After this initial period, performance will remain consistent unless

power is disconnected, allowing the amplifier to cool down.

(Power is considered disconnected when the Nº33H is powered off

with the rear panel ~ac mains relay switch or the power cord is

disconnected from the electrical outlet; or an extended power fail-

ure or power outage occurs. Power is not disconnected when the

Nº33H is in standby.) When power is returned, the Nº33H will

require a brief warm-up period of about 2 minutes before the

amplifier sound quality is at its best. (You will never have to

repeat the full 300 hour break-in period.)

Continuous Operation The Nº33H should be unplugged during lightning storms and

extended periods of non-use. Otherwise, it is designed for continuous

operation. For best performance, make sure the power cord is con-

nected to an electrical outlet at all times. During normal opera-

tion, do not use the rear panel ~ac mains relay switch to power

off the Nº33H. Instead, use the standby button to place the

Nº33H into standby, which allows the power amplifier to remain

warmed-up to deliver optimal performance at all times.

Ce manuel convient aux modèles suivants

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