Audio Note I Zero Manuale del proprietario

I Zero

INTEGRATED AMPLIFIER

OWNER’S INFORMATION

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! IMPORTANT SAFETY INFORMATION !

HUMIDITY: DO NOT STORE OR OPERATE THIS UNIT IN AREAS OF HIGH HUMIDITY, OR IN CLOSE

PROXIMITY TO WATER/DAMPINESS. DO NOT EXPOSE THE UNIT TO LIQUID.

EARTHING: THIS PRODUCT MUST BE EARTHED – ENSURE THAT THE MAINS SUPPLY CABLE IS

EARTHED.

SHOCK: INTERNAL OPERATING VOLTAGES ARE LETHAL! DO NOT REMOVE THE TOP COVER. DO

NOT ATTEMPT TO REPLACE THE FUSE WITHOUT DISCONNECTING THE UNIT FROM THE MAINS

SUPPLY.

SAFETY COMPONENTS: INTERNAL FUSES AND OTHER SAFETY COMPONENTS ARE LOCATED INSIDE

THIS UNIT IN ACCORDANCE WITH BS 00 5 REQUIREMENTS.

IN THE EVENT OF SAFETY COMPONENT FAILURE, THEY MUST BE REPLACED WITH THE SAME PART

TYPES ONLY. SUCH REPLACEMENT MUST BE CARRIED OUT BY A QUALIFIED SERVICE TECHNICIAN.

PRECAUTION

Never touch the power cord with wet hands.

Always pull the power cord out by the plug, not by the cord.

Never expose the system to rain, moisture, excessive heat and magnetism.

Never let an inexperienced person repair or reassemble the unit.

Never put anything, especially metal, into the unit.

Never place excessive weight on the unit.

POWER REQUIREMENTS

Power requirements for electrical equipment differ from area to area. Please ensure that

your unit meets the power requirements in your area. The power requirement for your phono

stage is marked on the serial number plate on the rear panel.

If you are in doubt, please contact your dealer before plugging the unit into the mains

supply!

CE DECLARATION OF CONFORMITY

We declare under our sole responsibility that this product is in conformity with the following

standards or standardized documents:

BS EN 00 5 in accordance with the regulations 73/23/EEC, 89/33 /EEC (from 1

January 1997),

2/499/EEC, 87/308/EEC standard.

CE 94

Peter Qvortrup

Director

Audio Note (UK) Limited

25 Montefiore Road,

Hove,

East Sussex

BN3 1RD

United Kingdom

Tel: +44 (0)1273 220 511

Fax: +44 (0)1273 731 498

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TABLE OF CONTENTS

2 PRECAUTIONS

4 UNPACKING & INSTALLATION

5 OPERATION

SPECIFICATIONS

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GENERAL

Congratulations

on your purchase of the Audio Note I Zero amplifier.

The I Zero is stereo integrated line amplifier with an output power rated at about 8 watts.

We choose to use the now little used triode pentode ECL82 which was widely used in small

radios and early televisions as an output valve, the ECL82 is run in Class A until 80% of its rated

power and close to max power I Zero switches to class AB, which provides low-heat, reliable and

long life.

Please read over this manual carefully in order to obtain the best possible performance

and longevity from amplifier.

UNPACKING & INSTALLATION

We recommend that you store the packaging materials in case the unit requires shipping

at a later date. Also, check that no transit damage has occurred before installing the amplifier.

Next, select a suitable location for the unit, not next to any large mains unit or damp

areas.

Worthwhile improvements may be obtained by locating the amplifier on a support

system specifically designed to reduce and absorb any vibrations.

AFTER CARE

Cleaning: No special maintenance is required for the I Zero. A soft cloth or brush similar to those

sold by photographic stores for lens cleaning applications is best used for cleaning.

Use a cloth lighty dampened with a mildly warm, weak soap solution to clean off grease

or oily substances. Strong or alcohol based solvents may damage the finish of this amplifier.

Tube replacement: The valves used in the amplifiers should provide approximately 000 hours

of operation.

These valves are specially selected and carefully matched by Audio Note for use with the

I Zero and should only be replaced with matched pairs. Please consult your Audio Note

dealer should the performance of the amplifiers deteriorate so that arrangements for valve

replacements can be made.

CONNECTIONS:

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CONNECTIONS - INPUTS

Four line inputs are available for connection to CD, AUX1, AUX2 and Tuner. All four inputs

have the same specifications and can be used as line inputs for CD, DVD players, Tape recorders,

VCRs etc.

CONNECTIONS - SPEAKERS

Each channel is equipped with 2 colour coded binding posts for connection to your

speakers. Looking from the front of the amplifier, the 2 binding posts to the left are for the left

channel and the 2 binding posts to the right are for the right channel.

Connect the amplifiers black speaker output binding post marked as “ - ” to the black

terminal (also marked “ – “) on the speaker.

Connect the amplifiers red speaker output binding post MARKED AS “ + ” to the red

terminal (also marked “ + “) on the speaker.

Special Note: make sure that all connections are tight and clean. For best performance,

use good quality audio interconnectS and speaker cables. Although several companies

manufacture good quality interconnects, those manufactured by

udio Note are excellent!

CONNECTIONS – MAINS

The I Zero utilizes an IEC 320 mains inlet socket. Use the supplied mains cable to connect

the unit to the local mains supply.

USING THE I ZERO

Once all the connections are completed and checked, ensure that the volume control is at

the minimum setting (rotated all the way left). Turn on the amplifier by using the rocker switch

located on the rear top right of the back panel just above mains inlet socket. The red front panel

light should now be lit. The amplifier requires approximately two minutes to initialize before it is

ready for operation.

Functi n Select r – Turn the selector to the input you wish to hear music from.

V lume C ntr l – This control adjusts the listening level or loudness, set as desired.

Bedding in time: The new amplifier requires about 200 hours of initial use (called “bedding in

time”) before the circuitry becomes stable and optimum performance is realised. As the amplifier

“beds in”, the sound will become more lucid, detailed and expansive.

Once the I Zero is “bedded in”, a warm-up time of approximately 30 to 45 minutes is

required each time the unit is turned on before

optimum

sonic performance is reached.

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TECHNICAL OVERVIEW

The I Zero meets the requirements of Level Zero and the basic technological requirements

of all Audio Note™ products. Audio Note™ use a technique called “Comparison by Contrast”

during the development of our products. This method of aural evaluation is a system currently

unique to Audio Note. High quality parts are used throughout the amplifier. The circuitry is simple

and incredibly effective, yielding a high level of sonic performance.

* An essay titled ‘Audio Hell’ that describes the Comparison by Contrast technique is available on Audio Note web

site under link http://www.audionote.co.uk/articles/art_audio_hell.shtml.

WARRANTY AND SERVICING

Audio Note™ warrants this product free from defects in materials and workmanship for

one year from original date of purchase from an appointed Audio Note dealer. The vacuum tubes

are warranted for three months.

In the event that your Audio Note™ product requires servicing, please contact your Audio

Note™ dealer. If the component needs to be shipped, please use the original packaging materials

and include a copy of the sales purchase with a note, explaining, in as much detail as possible,

the problems that you are experiencing with the unit.

If you require technical support, new vacuum tubes or have any questions, please direct

them to your local Audio Note™ dealer.

SPECIFICATIONS

Power source: AC 100-120V/220-240V 50/ 0 Hz

Fuse: 220/240V – 1A Anti-surge

100/120V – 2A Anti-surge

Input Impedance: 100k Ohm

Input Sensitivity: 400mV for full output

Maximum Output: 8W RMS per channel into ohms load

Channel Balance: +/-0.3dB

Valve Compliment: 4 x ECL82

Max power consumption: 75W

Dimensions: 300 (W) x 9 (H) x 310 (D) mm

(incl. knobs and connectors)

Weight: 7kg

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