Audio Note P-ZERO Bedienungsanleitung

Congratulations on your purchase of the Audio Note™ P-ZERO mono power amplifiers.

The P-ZERO’s are mono power amplifiers 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 AB2,

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 the P-ZEROs.

UNPACKING & INSTALLATION

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

shipping at a later date. Also, check that no transit damage has occurred before

installing the power amplifiers.

Next, select a suitable location for the units, ensuring that adequate ventilation is

provided, as some heat is generated by the power amplifiers during normal operation.

Worthwhile improvements may be obtained by locating the power amplifiers on a support

system specifically designed to reduce and absorb any vibrations.

AFTER CARE

Cleaning: No special maintenance is required for the P-ZEROs. A soft cloth or brush

similar to those sold by photographic stores for lens cleaning applications is best used for

cleaning.

Use a cloth 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 output valves should be changed every three years if left on 24

hours a day, otherwise every 5-7 years.

Audio Note™ has taken considerable care in selecting and matching vacuum tubes

specially for the P-ZERO’s, and so we recommend that you contact your Audio Note

dealer, who will be able to provide the correct tube should replacement be required.

CONNECTION

•Pre-amp The P-ZERO’s have on RCA socket on the back panel of each chassis

and is available for connection to the pre-amp. Connect the left channel output from

your pre-amp to the P-ZERO with the RCA (white ring) input socket. This amplifier

now becomes your left amplifier. Connect the right channel output from your pre-

amp to the P-ZERO with the RCA (red ring) input socket. This amplifier now

becomes your right amplifier.

•Speakers The set of speaker outputs, which are designed for use with spades

(preferably Audio Note™ silver plated type such as the AN-SS). Alternatively 4mm

bananas can be used. Connect the black binding post (marked as “0”) to the black

terminal on the speakers and the red binding post (marked as “+“) to the red terminal

on the speakers. Do the same for both (left and right) channels/units.

The secondary impedance of the output transformer is 8 Ohms and is designed to

get the best possible dynamic power when used with the Absolute Zero range of Audio

Note™ loudspeakers. The P-ZERO’s should be used with speakers with 91db or higher

efficiency.

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

quality audio cable. Although several companies manufacture good quality cable, those

manufactured by Audio Note™ are especially good! Avoid using long speaker cables and

interconnect lengths wherever possible.

MAINS CONNECTION: Use the supplied mains cable to connect the power amplifiers to

the mains supply, ensuring that the plug is firmly inserted to the mains input socket.

USING THE P-ZEROS

Once all connections are completed and checked, first turn on your pre amplifier. Then

flip the main on/off switchs located next to the mains input sockets of the power

amplifiers to the “on” position. The red indicators on the front panels should now glow.

Bedding in time: The P-ZERO’s require about 200 hours of initial use (called “bedding

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

the amplifier’s “bed in”, the sound will become more lucid, detailed and expansive.

Once “bedded in”, the P-ZERO’s require a warm-up time of approximately 30 to 45

minutes before optimum sonic performance is reached. For optimal performance, they

should be left on permanently. (low power consumption due to Class AB2 operation).

TECHNICAL OVERVIEW

The P-ZERO’s meet 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 circuitry is simple and incredibly effective, yielding a high level of sonic performance.

The fuse is situated in the mains inlet.

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

request.

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 or alternatively to:

Customer Support

Audio Note (UK) Limited

Unit C, Peacock Industrial Estate

Lyon Close

125-127 Davigdor Road

HOVE

East Sussex

BN3 1SG

United Kingdom

Tel: +44 (0)1273 220511

Fax: +44 (0)1273 731498

SPECIFICATIONS

Weight 6.5 kilograms x 2

Dimensions 218(w) x 110 (h) x 356(d) (mm)

Power consumption 30 Watts each

Fuse ratings 500M/A anti-surge (230V supply)

500M/A anti-surge (110V supply)

Input impedance 100K, main in

Input sensitivity 60 MV @ 0db

Maximum output 8 watts per channel

Tube compliment 2 ECL82s per channel (Push-Pull)

Note: Due to Audio Note’s ongoing research and development programme, specifications are subject to change

without notice.

THIS PRODUCT COMPLIES WITH CE STANDARDS

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