Classe Audio OMEGA - V1.1 Manuale utente

Owner’s Manual

Omega Series

Omega Monoblock

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO

NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED PERSONNEL.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,

DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert

the user to the presence of uninsulated dangerous voltage within the product’s enclosure that

may be of sufficient magnitude to constitute a risk of electric shock.

The exclamation point within an equilateral triangle is intended to alert the user to the presence

of important operating and maintenance (servicing) instructions in the literature accompanying the

appliance.

Marking by the CE symbol (shown left) indicates compliance of this device with the EMC

(Electromagnetic Compatibility) and LVD (Low Voltage Directive) standards of the European

Community.

NOTICE

All of us at Classé take extreme care to ensure that your purchase will remain a prized investment. We are proud to inform you that all

Classé components have been officially approved for the European Community (CE) mark under CE Certificate Number

C401CLA1.MGS granted on 18 July 1996.

This means that your Classé product was subjected to the most rigorous manufacturing and safety tests in the world. The CE mark

certifies that your purchase meets or exceeds all European Community requirements for unit-to-unit consistency and consumer safety.

CAUTION: Changes or modifications to this equipment not expressly approved by the manufacturer could void the user’s authority to

operate the equipment.

The information contained in the manual is subject to change without notice. The most current version of this manual will be posted

on our web site at http://www.classeaudio.com.

Important Safety Instructions

CAUTION:

Please read and observe all warnings and instructions in this owner’s manual and all those

marked on the unit. Retain this owner’s manual for future reference.

1. Do not attempt to service this product yourself. Do not open the cover for any rea-

son.There are no user-serviceable parts inside.An open unit, particularly if it is still con-

nected to an AC source, presents a potentially lethal shock hazard. Refer all questions to au-

thorized service personnel only.

2. To prevent fire or shock hazard, do not expose the unit to water or moisture. If

a liquid does enter your component, immediately disconnect it from the AC mains and take

it to your Classé dealer for a thorough checkup.

3. Do not place your component near any heat-producing device such as a radiator,

stove, etc. Keep it away from direct sunlight.

4. Connect your component only to an AC source of the proper voltage. The ship-

ping case and the rear panel serial number tag will indicate the proper voltage. Use of any

other voltage may damage the unit and void the warranty.

5. AC cords should be routed so that they are not likely to be walked on or

pinched by items placed upon or against them. Do not stress the AC cord by

stretching it to a plug. If damage does occur to the AC cord, take it to your Classé dealer

for a thorough check-up and proper repair or replacement.

6. If your component will be out of use for an extended period of time (vacation,

etc.), you may wish to unplug the power cord from the AC source to prevent any chance

of problems from a voltage surge or lightning strike.

7. NEVER wet the inside of this product with any liquid.

8. NEVER pour or spill liquids directly onto this unit.

9. NEVER block air flow through ventilation slots or heatsinks.

10. NEVER bypass any fuse.

11. NEVER replace any fuse with a value or type other than that specified.

12. NEVER attempt to repair this product. If a problem occurs, contact your Classé dealer.

13. NEVER expose this product to extremely high or low temperatures.

14. NEVER operate this product in an explosive atmosphere.

15. ALWAYS unplug sensitive electronic equipment during lightning storms.

Please record the serial number for your new Classé component here for future

reference.

Serial #: __________________

Contents

Welcome to the Classé family ........................................................................ 5

Unpacking and Placement ............................................................................. 6

unpacking your amplifier ..................................................................................... 6

placement ............................................................................................................ 6

ventilation ............................................................................................................ 7

custom installations .............................................................................................. 7

serial number ....................................................................................................... 7

please read this manual… .................................................................................... 7

Operating Voltage .......................................................................................... 8

warm up/break-in period ..................................................................................... 9

A Word About Installation ............................................................................ 10

Special Design Features ............................................................................... 11

design team philosophy ..................................................................................... 11

highly refined circuit design ............................................................................... 11

extensive listening tests ...................................................................................... 12

extraordinary longevity ...................................................................................... 12

robust protection ................................................................................................ 13

Front Panel .................................................................................................. 15

Rear Panel ................................................................................................... 16

Initial Setup.................................................................................................. 22

configuring channels .................................................................................. 22

configuring amplifier turn-on sequences .................................................... 23

Troubleshooting ........................................................................................... 25

Care and Maintenance ................................................................................. 27

Specifications............................................................................................... 28

Dimensions .................................................................................................. 29

Welcome to the Classé family

Congratulations on your purchase of a Classé Omega product. It is the

result of many years of continuous refinement, and we are confident that

you will enjoy it for many years to come.

We value our relationship with our customers. Please allow us to stay in

touch with you by returning your warranty card now, before you put

away the shipping case of your new product and forget all about it.

Doing so will enable us to let you know about any possible future up-

grades or updates that might become available for your Classé compo-

nent.

Sending in your warranty card also registers your product with us so

that warranty service can be obtained easily and quickly, even if you

have mislaid your original sales slip.

You will find the warranty registration card at the end of the enclosed

warranty policy booklet.

Please, take a few minutes to fill out the warranty

registration card, and drop it in the mail.

Unpacking and Placement

unpacking your amplifier Carefully unpack your Omega Mono power amplifier according to the

supplied instructions, and remove all accessories from the case. Please

take proper precautions when lifting the Omega Mono, as it is ex-

tremely heavy.

Important! The unpacking and placement of the Omega Mono

power amplifier requires two people. Please refer to the

separate instruction sheet provided for instructions on

how to do this safely and easily. . .

We recommend keeping the shipping case for future

transport of your Classé product. Shipping your

component in anything other than its purpose-designed

shipping case may result in damage that is not covered

by the warranty.

placement There are two options when placing your Omega Mono power ampli-

fier: you may place it close to the speakers, requiring longer intercon-

necting cables from the preamplifier; or place it close to the preamplifier,

requiring longer speaker cables.

Although either approach will yield excellent performance, you might

consider the first option for two reasons. First, signal quality degrades

more easily when transmitted as a combination of both high voltage and

high current, meaning that speaker cables should be kept as short as

practical. Second, high-quality amplifiers use massive power supplies

which inevitably radiate some degree of magnetic fields. Ideally, one

would separate these fields from sensitive source components by a rea-

sonable distance.

If it is more convenient for you to place the amplifier in an equipment

enclosure, along with your other components, we suggest placing it at

the bottom of the enclosure, well away from your source components

and preamplifier.

Note that adequate clearance for the AC cord and connecting cables must be left

behind the Omega Mono. We suggest leaving eight inches (20 cm) of free space

to allow all cables sufficient room to bend without crimping or undue strain.

ventilation Your Classé Omega Mono generates a certain amount of heat in the

course of normal operation. Be sure to allow six inches of clearance

above it and three inches to each side to allow heat dissipation through

air circulation.The vents on the bottom, front and back of the Omega

Mono must be kept free from any obstruction which would reduce the

flow of air through the unit.Avoid placement on soft surfaces that

would restrict airflow (such as plush carpeting).

custom installations Drawings are included in this manual to facilitate special installations

and custom cabinets (see the section Dimensions).

serial number The serial number for your Omega Mono power amplifier is found on

the rear of the unit. Please note and record this number on the page en-

titled Important Safety Instructions for your future reference.

the registration card. Please register your purchase so we can advise you

of updates and other items of interest.

It will take only a minute or so. Please complete the card now, before

you forget.

please read this manual… Please take a few minutes to review this manual, and to familiarize

yourself with your new amplifier.We understand that you are anxious to

plug everything in and get started. However, reading this manual and

following the advice it gives will ensure that you get all the benefits you

deserve from having purchased such a fine piece of equipment.

Operating Voltage

The Omega Mono power amplifier is set at the factory (internally) for

100V, 120V, 230V, or 240V AC mains operation, as appropriate for the

country in which it is to be sold. (230V only in European Union countries,

in compliance with CE regulations.) The voltage setting may not be

changed by the user.

Make sure that the label on the rear panel indicates the correct AC op-

erating voltage for your location.Attempting to operate your power am-

plifier at an incorrect voltage may damage the unit.

Warning: The voltage setting of the Omega Mono power amplifier

may not be changed by the user and there are no user-

serviceable parts within the unit. Please refer any

problems to an authorized Classé service center.

If the AC mains voltage indicated on your power amplifier is incorrect,

please contact your authorized Classé dealer or distributor.

The Omega Mono power amplifier can be powered by a normal 15-

ampere AC mains line. For peak performance, we suggest that you con-

sider dedicating an outlet exclusively for the Omega Mono.

The Omega Mono power amplifier includes protection circuitry that

will prevent the amplifier from operating at dangerously high or low

voltages.

•at startup: the AC mains voltage must be within a range

of approximately -15% to +10% of its nominal value at

startup, or the amplifier will not turn on. For example, a

120V unit requires the AC mains to be between approxi-

mately 95V–135V in order to turn on.

•over-voltage during operation: if the AC mains voltage

surges by roughly 10% or more during operation, the am-

plifier will enter protection mode and shut down.The ΩΩ

ΩΩ

Ω

indicator color will alternate between red and blue to in-

dicate that the protection mode has been engaged.

•under-voltage during operation: if the AC mains volt-

age sags by 15% or more, the amplifier will continue to op-

erate (since this does not present a particular danger to the

amplifier), but note that it will not be able to achieve its

usual standard of performance under these compromised

conditions.The ΩΩ

ΩΩ

Ω indicator will alternate between red

and blue to indicate this condition.

warm up/break-in period Your new Classé Omega Mono power amplifier will deliver outstanding

performance immediately. However, you should expect to hear it im-

prove somewhat as it reaches its normal operating temperature and its

various components “break-in.” It has been our experience that the

greatest changes occur within the first 300 hours, as the amplifier

reaches thermal equilibrium and the capacitors fully form. After this ini-

tial break-in period, the performance of your new product should re-

main quite consistent for years to come.

The only exception to this rule is if the unit is placed in standby or un-

plugged for an extended period of time, allowing it to cool down. De-

pending on the degree of cooling involved, you should expect a brief

warm-up period before the Omega Mono’s sound quality is at its best.

Unless your amplifier was allowed to become quite chilled, subsequent

thermal re-stabilization should not take long. Fortunately, you should

never have to repeat the initial 300 hour break-in period.

A Word About Installation

Every effort has been made to make the Classé Omega Mono simple

and straightforward to install and use.

Still, we have no way to evaluate many other variables such as the size

and shape of your room, its acoustics, and the associated equipment you

have chosen to use with your amplifier.All of these factors influence the

ultimate performance of your system.

For this reason, we strongly encourage you to have your

system installed and calibrated by your dealer, whose

experience, training, and specialized equipment can

make a profound difference in the final performance of

the system.

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