MEISHU Line Silver

 

INTEGRATED AMPLIFIER

OWNERʼS INFORMATION

 

CONTENTS

 

1) IMPORTANT SAFETY INFORMATION

2) CE DECLARATION OF CONFORMITY

DISPOSAL

POWER REQUIREMENTS

3) INTRODUCTION

4) OVERVIEW

UNPACKING AND INSTALLATION

5) VALVE INSTALLATION

6) CONNECTION

7) OPERATION

8) TECHNICAL SPECIFICATIONS

9) WARRANTY INFORMATION

10) CONTACT INFORMATION

! IMPORTANT SAFETY INFORMATION !

RISK OF SHOCK OR ELECTROCUTION! INTERNAL OPERATING

VOLTAGES ARE LETHAL!

Do not remove top cover, unless specifically instructed to do so in the user manual.

This unit contains fuses and other safety components in accordance with

BS60065 requirements.

In the event of failure, replacement fuse or safety component must be of

  the same part type and value.

SUCH REPLACEMENT MUST ONLY BE CARRIED OUT BY A

QUALIFIED SERVICE TECHNICIAN.

Do not attempt to replace any fuses without first disconnecting the unit from the mains electricity supply.

 

This product must be earthed – ensure that the mains supply cable earth / ground is correctly connected.

This product generates high levels of heat. Adequate ventilation must be provided. Do not restrict airflow through any ventilation slots or place the unit on any surface that may restrict airflow.

Valve equipment operates at extremely high temperatures;

KEEP OUT OF THE REACH OF CHILDREN AND ANIMALS.

 

Do not store or operate this unit in areas of high humidity or in close proximity to water / moisture.

Do nor expose or immerse the unit in liquid of any kind.

 

OTHER SAFETY PRECAUTIONS: -

Never touch the power cord with wet hands.

Always remove the power cord by grasping the plug, not the cable.

Never expose the unit to excessive heat or magnetism.

Never let an inexperienced person repair or reassemble the unit.

Never put anything, especially metal objects, inside the unit.

 

Never place excessive weight on the unit.

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 60065 in accordance with the regulations 73/23/EEC, 89/336/EEC

(from 1 January 1997)

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

DISPOSAL

This product must not be disposed of as normal household waste. To

prevent possible harm to the environment please separate the product from other waste to ensure that it can be recycled in an environmentally safe manner. Please contact your retailer or the appropriate local government office for collection facilities.

 

POWER REQUIREMENTS

Power requirements for electrical equipment vary depending on your geographical location. Please ensure that your unit meets the power requirements in your area.

The power requirement for your unit is marked on the serial number plate, located on the rear panel.

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

INTRODUCTION

Thank you for purchasing this Audio Note (UK) product. With the correct care it should give you many years of pleasure and enjoyment.

Please take the time to read all of the information in this manual before connecting your new component to an electrical supply or your system, to ensure both your safety and satisfaction.

Please note that due to our desire to continually improve products, specifications are subject to change without notice. Therefore it is important to refer to the manual that is supplied with your product for the most accurate information; manuals downloaded from our website or obtained from other sources may no longer fully apply to your product.

If you have any questions regarding the information contained within this document or your new component, please feel free to contact us: -

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 e-mail: [email protected]

MEISHU LINE SILVER INTEGRATED

Congratulations on your purchase of the Audio Note (UK) Meishu Line Silver

Integrated Amplifier.

It is a Pure Class A Singled Ended valve amplifier that uses the highly regarded 300B direct heated triode valve, producing a level of performance that is radically superior to the vast majority of current designs.

It has been specifically engineered for sonic performance rather than technical specification, and fulfills all Audio Note (UK) Level 3 criteria: -

Pure Class A operation

Zero Negative Feedback

Single Ended Output Stage

Valve Rectification

Directly Heated Triode operation

Materials and component quality

The Silver version builds upon the already superb performance of the standard

Meishu, and features the following additions: -

Audio Note Silver wiring

Audio Note Copper Foil signal capacitors

Black Gate electrolytic capacitors

Tantalum film resistors

High B C-core output transformers

UNPACKING AND INSTALLATION

Please take care when unpacking your Meishu Line Integrated Amplifier. Choose a clean, clear location to unpack your unit. Be aware that the amplifier is very heavy; before attempting to unpack or lift the unit, check the weight and if necessary use more than one person so that it can be moved safely and easily.

We recommend that you retain and carefully store all of the original packing materials, in case transportation / shipping is required at a later date.

Select a suitable location for the unit. This should be a dry, dust free and level area, preferably shielded from direct sunlight and free from vibration. Also ensure that the location is stable and capable of carrying the weight of the unit.

A suitable mains power outlet must be close to the location; power cords must not be pulled or stretched tightly in an attempt to reach a wall socket. If the power cord will not easily reach the socket, choose a closer location!

Please ensure that adequate ventilation for the unit is provided, and that airflow through any ventilation slots in the unit is not restricted. We recommend a distance of at least 30cm free space is maintained above the unit. Please also remember that valve equipment operates at extremely high temperatures, so a position that is inaccessible to any children or animals is essential.

VALVE INSTALLATION

The amplifier is shipped without the 3 large valves installed. It is necessary to install the valves first.

It is essential that the valves are installed correctly or serious damage that is not

covered by the warranty will result. We recommend that your dealer perform this procedure for you if you are in any way unsure.

FIRSTLY, ENSURE THAT THE AMPLIFIER IS NOT CONNECTED TO A MAINS

ELECTRICAL SUPPLY, AND THAT THE POWER CORD IS NOT CONNECTED TO

THE AMPLIFIER.

Using a No.2 pozidrive® screwdriver, remove the 6 x screws for the top and 7 x screws for each side of the top cover.

Now remove the 3 valves that are packed inside the amplifier. Also inspect the inside of the amplifier to check that nothing has become damaged during transit including the remaining 5 smaller valves.

Carefully unwrap the 3 valves. You will find the following: -

2 x 300B valves

1 x 5U4G valve.

Once again, please understand that it is absolutely vital these valves are fitted

correctly.

Looking from the front of the amplifier install the 300B valves first: -

Inspect a 300B valve base and you will notice that two of the pins are larger than the other two; this is to help ensure that the valve can only be inserted one way.

1) The larger pins must face each other when fitted to their valve bases on the central board.

2) The sticker on the valve base must also line up with the sticker on the central circuit board; for instance, ʻAtoAʼ, ʻBtoBʼ or ʻ1to1ʼ, ʻ2to2ʼ etc.

3) Please also note the diagram located on the output transformer, showing correct installation and orientation.

Please make sure that steps (1), (2) and (3) are correct and with gentle but firm pressure insert the valve into its socket. Check again that all valves are fully inserted correctly in to their respective valve sockets.

FRONT

Looking from the front of the amplifier, insert the 5U4G valve into the last empty socket located on the right, situated between two smaller valves. Locate the rib on the central pin of the valve and align with the valve base (it can only be inserted one way due to this locating rib) and with gentle but firm pressure insert the valve.

Check once again that all valves are correctly fitted, and then replace the top

cover.

CONNECTION

Line inputs Five line inputs are available for connection to CD, Tuner, Tape In,

Aux and AV.

VCRs & DVDs may be connected to the AV input.

Connect the Rec-Out sockets to the “Tape In” or “Line In” sockets of your Tape Recorder.

Pre outputs The Preamplifier output sockets are available for use with an extra power amplifier such as the Audio Note P3. They should remain unconnected if no such amplifier is being used.

Ground Post A ground post is provided for connection to those source components that also use a separate ground terminal.

Speakers Each channel is equipped with 3 colour coded binding posts for connection to your speakers.

Looking from the front of the amplifier, the 3 binding posts to the left are for the left channel and the 3 binding posts to the right are for the right channel.

Connect the amplifiers black speaker output binding post marked as

“0” to the black / negative terminal (also marked “ – “) on the speaker.

Connect the amplifiers red speaker output binding post marked “8

Ohm” to the red / positive terminal (also marked “ + “) on the speaker.

The other red speaker output binding post is marked “4 Ohm” and may be used with 4 Ohm speakers. If you are uncertain whether your speaker system is specified as 4 or 8 Ohm, try the following test once all other connections are made and the amplifier is operational.

Compare the sound quality using a familiar recording with the speakers connected to the 8 ohm connections and then the 4 Ohm connections respectively. The selection that produces the best frequency balance and maximum dynamics should be used.

Mains The Meishu utilizes an IEC 320 mains inlet socket. Use the supplied mains cable to connect the unit to the local mains supply. The mains fuse and a spare is located in the inlet socket fuse drawer.

Special Note – Make sure that all connections are tight and clean. For best results use good quality audio interconnects. Although it is perfectly acceptable to use cables manufactured by other companies,

for best results and performance, we recommend our own Audio Note

(UK) range of interconnects and loudspeaker cables. For further information, please consult your nearest Audio Note (UK) dealer, or alternatively please feel free to contact us directly.

OPERATION

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.

Function Selector Turn the selector to the source you wish to listen to.

Record Selector This selector allows you to listen to one source whilst simultaneously recording from a different one. For instance, if you wish to listen to vinyl whilst also recording from the CD player, set the Function Selector to your vinyl input and the

Record Selector to your CD player input.

Volume Control This control adjusts the listening level, or loudness. Set as desired!

Balance Control This control adjusts the relative left/right levels. Use this control if necessary to equalize the loudness from each speaker.

Bedding in The new amplifier requires about 200 hours of initial use (called

“bedding in”) before the circuitry becomes stable and optimum performance is realized.

As the amplifier “beds in” the sound will become increasingly smoother, detailed and open.

Once the amplifier has “bedded in” a warm up time of approximately 30 to 45 minutes is required each time the amplifier is switched on before optimum sonic performance is reached.

Cleaning No special maintenance is required for the amplifier. Use a soft, clean lint free cloth to remove any surface marks from the casework. For finger marks / grease, use a soft, clean lint free cloth, lightly moistened with a solution of warm water and mild detergent. Do not use any alcohol or solvent based cleaning products, as they may damage the finish of the amplifier.

ENSURE THAT THE AMPLIFIER IS SWITCHED OFF AND

DISCONNECTED FROM THE MAINS ELECTRICITY

SUPPLY BEFORE UNDERTAKING ANY CLEANING.

Valve Life The valves supplied with your amplifier should provide approximately 6000 hours of operation. They are specially selected by us, and should only be replaced with matched pairs. Please consult your Audio Note (UK) dealer should your valves need replacing.

TECHNICAL SPECIFICATIONS

INPUT IMPEDANCE

INPUT SENSITIVITY

MAXIMUM OUTPUT

CHANNEL BALANCE

VALVE COMPLIMENT

UNIT WEIGHT

SHIPPING WEIGHT

(ORIGINAL PACKAGING)

UNIT DIMENSIONS

SHIPPING DIMENSIONS

(ORIGINAL PACKAGING)

MAINS INPUT

MAINS FUSE

MAX. POWER

CONSUMPTION

NOTE

 

 

100k ohm, line level

450mV for full output

8 watts RMS per channel into 4 or 8 Ohm loads

+/- 0.3dB

1 x 5U4G

2 x 300B

2 x 6X5

2 x 5687

1 x 6SN7

27.5KG

40KG

220mm (h) x 460mm (w) x 530mm (d)

420mm (h) x 650mm (w) x 670mm (d)

AC 100-120V/220-240V 50/60 Hz

3.15A Anti Surge (110/120V Supply)

1.2A Anti Surge (200/240V Supply)

200 Watts

Due to Audio Note (UK)ʼs ongoing research and development program, specifications are subject to change without notice.

WARRANTY INFORMATION

Audio Note (UK) warrants this product to be free from defects in materials and workmanship for two years from the original date of purchase from an appointed

Audio Note (UK) dealer, and agrees to covers the cost of parts and associated labour required to correct such defects, subject to terms & conditions.

This Warranty is offered to the first purchaser only.

Any valves supplied with the unit are warranted for three months from the original date of purchase.

If the product fails in normal domestic use and during the Warranty period due to the above described faults or defects, Audio Note (UK) will, at its discretion, repair or replace the item free of charge within a reasonable time once it has been returned to

Audio Note (UK) or an appointed Audio Note (UK) dealer or service engineer.

Audio Note (UK) is not liable for any shipping charges incurred whilst transporting the product to or from Audio Note (UK) or an appointed Audio Note (UK) dealer or service engineer, should the item require service or repair during or after the

Warranty period.

If the product must be shipped, please use the original packaging materials and include a copy of the original sales receipt along with a note explaining, in as much detail as possible, the problems you are experiencing with the unit.

Only use a reputable Courier Service or Shipping Agent, and ensure that your product is insured during transit.

Any servicing, repairs or modifications not authorized by Audio Note (UK), or carried out by persons other than appointed Audio Note (UK) service engineers will invalidate any warranty.

This Warranty does NOT cover: -

Damage sustained whilst in the possession of a shipping agent, retailer or consumer and not caused as a direct result of defects in materials or workmanship.

Damage caused by normal wear and tear.

Damage or defects caused by abnormal or unreasonable use.

Damage caused by accident, acts of nature, misuse or neglect.

Damage caused by a failure to follow the operating and installation instructions supplied with the product.

Damage caused by improper or careless cleaning.

Audio Note (UK) reserves the right to refuse warranty for any component of which the serial number has been removed, defaced or tampered with.

CONTACT INFORMATION

If in the future your Audio Note (UK) product requires servicing, or if you require technical support or have any questions regarding this or any of our other products, please contact your local Audio Note

(UK) dealer.

Alternatively, please feel free to contact us directly: -

 

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 e-mail: [email protected]