Linn 328A Owners Manual
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Important safety information Explanation of symbols used in this manual and on the product: This symbol is intended to aler t the user to the presence, within the enclosure, of uninsulated dangerous voltages of suf ficient magnitude to cause electric shock. This symbol is intended to aler t the user to the presence of impor tant maintenance and ser vicing information in the instruction and ser vice manuals. WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. GENERAL SAFETY INSTRUCTIONS 1. Read instructions. Read the safety and operating instructions before operating the appliance. 2. Retain instructions. Retain the safety and operating instructions for future reference. 3. Heed warnings. Obser ve all warnings on the appliance and in the operating instructions. 4. Follow instructions. Follow all operating and use instructions. 5. Water and moisture. Do not use the appliance near water, for example near a bathtub, washbowl, kitchen sink, laundr y tub, in a wet basement, or near a swimming pool and the like. 6. Car ts and stands. Use only with a car t or stand that is recommended by the manufacturer. 6a. An appliance and car t combination should be used with care. Quick stops, excessive force, and uneven sur faces may cause the appliance and car t combination to over turn. 7. Wall or ceiling mounting. Mount to a wall or ceiling only as recommended by the manufacturer. 8. Ventilation. Site the appliance so that its location or position does not inter fere with its proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar sur face that may block the ventilation openings, or placed in a built-in installation such as a bookcase or cabinet that may impede the flow of air through the ventilation openings. 9. Heat. Site the appliance away from heat sources such as radiators, heaters, stoves, or other appliances (including amplifiers) that produce heat. 10. Power sources. Connect the appliance to a power supply only of the type described in the operating instructions or marked on the appliance. 11. Grounding or polarisation. Do not defeat the safety purpose of the polarised or grounding type plug. A polarised 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 the third prong are provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 12. Power cord protection. Route power cords so that they are not likely to be walked on or pinched by items placed upon or against them, paying par ticular attention to cords at plugs, power sockets, and at the point where they exit from the appliance. 13. Protective attachment plug. As a safety feature the product is equipped with an attachment plug containing overload protection. See the instruction manual about resetting or replacing the plug. Should the plug need replacing ensure that a replacement is used which has the same overload protection as the original. 14. Cleaning. The product should be cleaned only as recommended by the manufacturer. 15. Power lines. An outdoor antenna should be located away from power lines. 16. Outdoor antenna grounding. If an outdoor antenna is connected to the tuner/receiver ensure that the antenna system is grounded to provide some protection against voltage surges and static build up. In the USA see ar ticle 810 of the National Electrical Code ANSI/NFPA 70 concerning installation requirements. 17. Lightning storms. Unplug this apparatus during lightning storms or when unused for long periods of time. 18. Objects and liquid entr y. Do not let objects or liquids fall into the product. Do not expose the product to dripping or splashing. Do not place a vessel containing liquid on top of the product. 19. Damage requiring ser vice. The product should be ser viced by qualified personnel if: a) The power cord or plug has been damaged. b) Objects or liquid have fallen into the product. c) The product has been exposed to rain. d) The product does not appear to operate normally or exhibits a marked change in operation. e) The product has been dropped or the enclosure damaged. 20. Ser vicing. Dont attempt to ser vice the product beyond that described in the operating instructions. All other ser vicing should be referred to qualified ser vice personnel. Copyright and Acknowledgements Copyright © 2003 Linn Products Limited. First edition June 2003. Linn Products Limited, Floors Road, Water foot, Glasgow, G76 0EP, Scotland, United Kingdom. All rights reser ved. No par t of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or other wise, without the prior written consent of the publisher. Linnand the Linn logoare registered trade marks of Linn Products Limited. Printed in the United Kingdom. Linn Par t Number: PACK 848. The information in this manual is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by Linn Products Limited. Linn Products Limited assumes no responsibility or liability for any errors or inaccuracies that may appear in this manual. UK USERS PLEASE READ THIS IMPORTANT SAFETY INFORMATION Replacing the fuse in the mains plugThis appliance is fitted with a non-rewireable 10 Amp mains plug. The plug contains a 10 Amp fuse. If the fuse has blown it can be replaced as follows: a) Pull out the red fuse cover/carrier. b) Remove and dispose of the blown fuse. c) Fit a new 10 Amp BS1362 approved fuse into the carrier and push the carrier back into the plug. Always ensure the fuse cover is fitted. If the fuse cover is missing do not use the plug. Contact Linn to obtain a replacement fuse cover. Fuses are for fire protection and do not protect against electric shock. Mains plug replacementShould your mains plug need replacing and you are competent to do this proceed as follows. If you are in doubt contact your Linn retailer or a competent electrician. a) Disconnect the plug from the mains supply. b) Cut of f the plug and dispose of it safely. A plug with bared conductors is dangerous if engaged in a live socket. c) Only fit a 10 Amp BS1363A approved plug with a 10 Amp fuse. d) The cable wire colours or a letter will be marked at the connection points of most quality plugs. Attach the wires securely to their respective points. The Brown wire must go to the Live pin, the Blue wire must go to the Neutral pin, and the Green/Yellow wire must go to the Ear th pin. e) Before replacing the plug top ensure that the cable restraint is holding the outer sheath of the cable firmly and that the wires are correctly connected. WARNING THIS APPLIANCE MUST BE EARTHED. CE Declaration of Conformity Linn Products Ltd declare that this product is in conformance with the Low Voltage Directive 73/23/EEC and Electromagnetic Compatibility 89/336/EEC as amended by 92/31/EEC and 93/68/EEC. The conformity of the designated product with the provisions of Directive number 73/23/EEC (LVD) is proved by full compliance with the following standards: Standard number Date of issue Test type EN60065 1998 General requirements Marking Hazardous radiation Heating under normal conditions Shock hazards under normal operating conditions Insulation requirements Fault conditions Mechanical strength Par ts connected to the mains supply Components Terminal devices External flexible cords Electrical connections and mechanical fixings Protection against electric shock Stability and mechanical hazards Resistance to fire The conformity of the designated product with the provisions of Directive number 89/336/EEC (EMC) is proved by full compliance with the following standards: Standard number Date of issue Test type EN55013 2001 Conducted emissions EN55013 2001 Absorbed emissions EN55020 2002 Immunity FCC NoticeNOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Par t 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful inter ference 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 inter ference to radio communications. However, there is no guarantee that inter ference will not occur in a par ticular installation. If this equipment does cause harmful inter ference to radio or television reception, which can be determined by turning the equipment of f and on, the user is encouraged to tr y to correct the inter ference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit dif ferent from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. English
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Contents System Overview 1 Introduction 1 High Sound Pressure Level warning 1 Cellphone warning 1 Applications 1 Unpacking 1 Inspection 1 Voltage selection 1 Technical Overview 2 Twin LF drivers 2 Closed-loop LF control 2 3-K driver array technology 2 Amplifiers and power supplies 2 Cabinet design 2 Graphs 2 Features 3 Mains Power inlet / fuse drawer 3 Power on indicator 3 Overload protection 3 Controls 3 Balanced Audio in 3 Speaker Sensitivity 3 Treble Shelf 3 Bass Roll-on 3 Installation and Operation 3 Mounting recommendations 3 Connecting the Audio Input 3 Servicing 4 LF Driver removal and replacement 4 3-K Driver Array removal and replacement 4 Fuse replacement 4 Ordering spares 4 Cleaning 4 Technical Specification 5 System Overview INTRODUCTION The Linn 328A is a fully active, 4-way, self-powered reference monitor designed for professional audio applications where accurate, revealing and realistic playback is essential. Employing unique Linn playback technology, the 328A of fers high power, low colouration, low resonance, low distor tion and exceptionally good low frequency response for the size of enclosure. HIGH SOUND PRESSURE LEVEL WARNING Linn monitors are capable of generating high sound pressure levels (SPL). Your hearing can be damaged by exposure to high SPL for an extended period of time. Therefore we recommend that you use an integrating type sound level meter to measure your exposure to SPL while using these monitors, and that you limit your exposure to within that recommended by your national health authority. It is not suf ficient to rely on your own judgement concerning SPL when working with high quality monitors because your perception of SPL is dependent on the amount of distor tion introduced by them. Because this distor tion is ver y low in the Linn 328A, you can be led into believing the SPL is lower than it actually is and hence risk exposure to damaging levels. CELLPHONE WARNING Cellular telephones should not be placed in close proximity to this monitor due to the possibility of damage to the monitor, the cellphone, or both caused by electromagnetic interaction. APPLICATIONS The 328A is suitable for the most exacting, high resolution audio monitoring applications. The units compactness and low-profile silhouette give excellent working visibility, making it an ideal reference tool for professional music, broadcast, post-production and mastering applications. UNPACKING Your 328A Reference Monitor comes packed in a box with the following accessories: - one mains lead - this manual The 328A monitor is heavy (45 kg) and must therefore be handled using appropriate precautions to avoid the possibility of personal injur y. It should always be lifted and handled by two people while unpacking or repacking and during subsequent positioning operations. We recommend you retain the packaging for reuse in case you need to transpor t the unit at any time. INSPECTION Your 328A left the factor y in per fect condition but it is possible damage may have occurred in transit. After unpacking your monitor, and before connecting to mains power or other equipment, inspect the monitor for such damage. If damage is found, immediately contact the carrier for advice on their claims procedure. VOLTAGE SELECTION Voltage selection is not needed. Your 328A is factor y set to operate from your local mains supply. The mains lead supplied may be fitted with a fused plug according to local regulations. If this is the case, always replace this fuse with another of the same type and rating. The 328A Reference Monitor must always be ear thed when connected to mains power. Use the ear thed moulded mains lead supplied. Never use an unear thed plug or adapter with this unit. 1 English