Linn LK240, Owner'S Manual

Page 1: ...S I N G L E S P E A K E R P O W E R A M P L I F I E R O W N E R S M A N U A L LINN LK240 ...

Page 2: ...CE FUSE WITH SAME TYPE AND RATING ATTENTION UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE ATTENTION DEBRANCHER AVANT DE REMPLACER LE FUSIBLE WARNING TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE MAINS PLUGS This appliance is supplied with a non rewireable mains plug for the intended country Replacement mains leads c...

Page 3: ...eat 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 polarization Do not defeat the precautions taken to ground or polarise the supply to the appliance 12 Power cord protection Route power cor...

Page 4: ...se 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 your Linn retailer to obtain a replacement fuse cover Fuses are for fire protection and do not protect against electric shock Mains plug replacement Should your mains plug need replacing and you are competent to do this proceed as follows If yo...

Page 5: ... or otherwise without the prior written permission of the publisher Printed in the United Kingdom LK240 is a trademark of Linn Products Limited 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 i...

Page 6: ...tents Introduction 1 The LK240 and music 2 Setting up the LK240 5 Unpacking 5 Positioning 7 Connecting 8 Operation 9 Protection 10 Guarantee and service 11 Technical information 12 Specifications 12 Index 13 ...

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Page 8: ... Power Amplifier the building block of your Linn hi fi system you bring that superb live performance into your home Once up and running the LK240 will bring you an unrivalled listening experience that we know you ll enjoy again and again To do that you need to know exactly how to get the best out of your LK240 and that is what this manual is all about In the next few pages you will find out everyt...

Page 9: ...tects the presence of an audio signal and power down into standby mode when there is no signal This enables it to be left on with minimum power consumption An indicator light on the front panel remains red when the LK240 is in standby and green when it is powered up telling you at a glance the operational status of the LK240 The LK240 comes with full protection against power overload and overheati...

Page 10: ... Loudspeakers can be bi wired or tri wired to the LK240 by the use of the four loudspeaker sockets to obtain even higher sound quality Bi wiring and tri wiring involves making separate connections to the treble and midrange bass units on a loudspeaker Keeping the bass midrange and treble signals separate improves the performance of the loudspeakers by reducing the coupling between the signals ...

Page 11: ...ss midrange and treble signals separately When bi amping or tri amping the highest possible performance can be obtained by removing the passive crossover units from the loudspeaker and fitting active crossover modules to the LK240 to accurately divide the signal into the appropriate frequency bands This is known as active playback ...

Page 12: ...e mains supply you should check the following that everything is in the box that the correct voltage has been selected that the correct fuse has been fitted What is in the box The LK240 comes in a box with the following accessories a mains lead one phono to phono lead two 3 15A fuses two 6 3A fuses this manual We recommend you retain the packaging in case you need to transport the LK240 at a later...

Page 13: ...he correct fuse has been fitted To fit the fuse first identify the correct fuse for your local voltage This should be a 3 15A anti surge for 230V a 6 3A anti surge for 115V a 6 3A anti surge for 100V Japanese version Pull open the fuse drawer at the left hand side of the mains inlet insert the fuse in the rear compartment and close the drawer Earthing the LK240 The earthed moulded mains lead suppl...

Page 14: ...u can position the LK240 almost anywhere you find convenient but the following considerations may be useful The LK240 is a powerful amplifier and can generate several hundred Watts of heat under extreme use In cases of overloading or overheating the LK240 will automatically shut down No damage will result if it does so Always ensure there is plenty of air circulation around the LK240 especially if...

Page 15: ...ng the LK240 audio input The LK240 provides two audio input sockets to allow amplifiers to be daisy chained Connect the phono cable from your source This may be a pre amplifier multi room system or some similar hi fi component SPEAKER OUTPUTS AUDIO INPUT SIGNAL DETECTOR SENSITIVITY MIN MAX 230 FM FM ANTENNA ANTENNA AM AM ANTENNA ANTENNA REMOTE REMOTE CONTROL CONTROL ROOM ROOM CONTROL UNIT CONTROL ...

Page 16: ... the presence of an audio input signal As soon as the LK240 detects the presence of an audio signal it will power up and a small indicator light adjacent to the power switch will light green Whenever an audio signal is removed the LK240 powers down to standby mode after a short delay until it again detects an audio signal The small indicator light will turn red when the LK240 switches to standby m...

Page 17: ...n the LK240 automatically shuts down in conditions of extreme heat or power overloading If the LK240 overheats it will power down and the indicator light on the front panel will turn red until the temperature has fallen to safe operating levels usually after about 30 seconds The LK240 has been designed to withstand temperatures of up to 70 C If the LK240 continually overheats try increasing the ve...

Page 18: ...from your Linn retailer and should be stamped by them This will also enable you to receive the Linn RECORD newsletter and details of hi fi and music available from Linn Warning Refer all enquiries to authorised Linn retailers only Unauthorised servicing or dismantling of the product invalidates the manufacturer s warranty If you are in any doubt please contact your nearest Linn retailer For inform...

Page 19: ...tput 31V rms voltage Gain x27 28 6dB Input impedance 4700Ω Frequency response 3dB 2Hz 50kHz Output offset 5mV Signal sense threshold 150µV rms Standby power 5W consumption Maximum input power 400W Fuse rating 115V T6 3A 230V T3 15A 100V model T6 3A Safety approvals EN60065 Europe UL1270 USA CSA22 2 Canada EMC approval to European standards Size 320mm x 325mm x 80mm 12 6 x 12 8 x 3 1 W x D x H Weig...

Page 20: ...ent iii 6 G guarantee 11 I indicator light 2 9 flashing green and red 10 green 9 red 9 introduction 1 Index L LK240 and music 2 M mains lead wiring 6 mains plugs i mains supply connecting 8 O operation 9 overheating 7 10 overloading 7 10 P positioning 7 protection 2 10 R replacing the fuse iii S safety instructions i ii service 11 setting up 5 signal detector adjusting 9 by passing 10 sensitivity ...

Page 21: ...14 specifications 12 standby mode 2 9 T technical information 12 temperature maximum 10 tri amping 4 tri wiring 3 9 U unpacking 5 V voltage selection 6 ...

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