Linn KEOSA User manual

OWNERS MANUAL
LINN KEOSA

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IMPORTANT SAFETY INFORMATION
Explanation of symbols used in this manual and on the product :
This symbol is intended to alert the user to the presence of uninsulated dangerous voltages within the
enclosure of sufficient magnitude to cause electric shock.
This symbol is intended to alert the user to the presence of important maintenance and servicing
information in the instruction and service manuals.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE THE COVER.
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: SHOCK HAZARD. DO NOT OPEN.
AVIS: RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR.
CAUTION: REPLACE FUSE WITH SAME TYPE AND RATING.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE.
CAUTION: DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE.
ATTENTION: DEBRANCHER AVANT DE REMPLACER LE FUSIBLE.
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. Observe 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,
laundry tub, in a wet basement or near a swimming pool and the like.
6. Carts and Stands. Use only with a cart or stand that is recommended by the manufacturer.
6a. An appliance and cart combination should be used with care. Quick stops, excessive force and uneven surfaces
may cause the appliance and cart combination to overturn.
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 interfere with its proper ventilation. For
example the appliance should not be situated on a bed, sofa, rug or similar surface 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 is 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 particular 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 article 810 of the National Electrical Code ANSI/NFPA 70 concerning installation requirements.
17. Unplug this apparatus during lightning storms or when unused for long periods of time.
18. Objects and liquid entry. Take care not to let objects or liquids fall into the product.
19. Damage requiring Service. The product should be serviced 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. Servicing. Don’t attempt to service the product beyond that described in the operating instructions. All other
servicing should be referred to qualified service personnel.
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C opyright and acknowledgements :
Copyright Linn Products Limited.
Linn Products Ltd.,
Floors Road, Waterfoot,
Glasgow G76 0EP, Scotland, U.K.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in
anyformorbyanymeanselectronic,mechanical,photocopying,recordingorotherwisewithoutthepriorwritten
consent of the publisher.
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.
WARRANTY AND SERVICE :
This product is warranted under the conditions which apply in the country of purchase.
In addition to any statutory rights the customer may have we undertake to replace any parts which have failed
due to faulty manufacture. To help us please ask your Linn retailer about the Linn warranty scheme in operation
in your country.
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 information on your nearest Linn retailer
contact the factory in Scotland or your national distributor.
Important : Please keep a copy of the sales receipt to establish the purchase date of the product.
Please ensure that your equipment is insured by you during any transit or shipment for repair.
Designed and manufactured by :
Linn Products Ltd.
Floors Road, Waterfoot
Glasgow G76 0EP
Scotland, U.K.
Phone: ++44 (0)141 307 7777
Fax: ++44 (0)141 644 4262
email: [email protected]
Internet: http://www.linn.co.uk/linn

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USICisveryimportantforpeople.Itstimulatestheimagination,
helpsthemrelax,canchangetheirmood,andofcourseprovides
entertainment and pleasure.
A good hi-fi works well enough to deliver these benefits. It also helps you
appreciate music you never thought you would.
AtLinn we devoteour energy toimproving standards ofmusic reproduction,
because we know that the better the sound the more you'll enjoy music at
home.
The addition of any Linn component will improve the sound quality of your
system. Linn has a policy of continuously improving its equipment allowing
customers to retro-fit most product upgrades.
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NTRODUCTIONThankyou forchoosingourLinnKEOSAloudspeakers,
which join the family of Linn loudspeakers, and use much of the
technology of the KEILIDH.
As you may have noticed from the weight of the KEOSAs, they are most
solidly built. The cabinet is braced over its entire height and contains fibre
sound absorbent. The KEOSA is a two-way loudspeaker, with two mid/bass
drivers symmetrically placed about the tweeter to give a very stable sound
source. The crossover is built using high quality components and can be
bi-wired for increased performance. The ceramic dome tweeter gives
astonishingly clean and sweet transients. The bass drivers have good, low
distortion power handling and are configured in parallel which, partnered
with the efficient tweeter, give an especially pleasurable loudspeaker.
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ENERAL INFORMATION If you are installing your KEOSAs
yourself, follow the detailed INSTALLATION GUIDE further on in
thismanual.Ifyouhaveanyproblems,pleaseaskyourLinnretailer
G
tohelp. Linnretailersandtheirstaffhavebeenextensivelytrainedtoensure
that they have the knowledge and expertise to get the best possible sound
from our equipment, so it makes sense for you to call on this skill whenever
you need it.
SPIKES
All loudspeakers perform best when rigidly mounted. To achieve this, the
KEOSAs include stabilising floor spikes. These also keep the weight of the
loudspeakers from compressing your carpet. The spikes penetrate between
the weaves of the carpet, which will therefore quickly recover if the
loudspeakers are moved.
CAUTION IfyouneedtomoveyourKEOSAs,pleasenotethatthespikesare
sharp so the loudspeakers should be handled with care.
GRILLES
The KEOSA grille is unusual in that it has no frame and fits directly onto the
front baffle. This avoids the problems of rattling and diffraction which a
frame can introduce.
To fit the grille, ensure that the shiny side of the material is to the outside.
Find the knotted part of the grille elastic, and locate it in the slot below the
bassdriveraboutathirdofthewayinfromacorner. Pullthegrilleupevenly
overthebaffle.Thenfind thejointintherubberringandlocateitinthesame
slotabouta third ofthewayin from the otherbottomcornerand fit thering.
Aplasticrulercanbeusedtoencouragethematerialandtherubberringback
into the slot.

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MAINTENANCE
The Linn KEOSAs normally need no maintenance, other than occasionally
polishingthecabinet with asoft,slightlydamp cloth. Take carenottotouch
thedriveunitsbehindthegrillecloth.If youhavetotransportyourspeakers,
remove the spikes and use the original packing. Your retailer can provide
packing if necessary.
To remove the grille, grip the top right hand corner, pulling it so that
the rubber ring and elastic clear the baffle. Then remove the ring and
the grille cloth.

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BI-WIRING
The Linn KEOSAs are able to be single wired, bi-wired, or bi-amped.
IntheSINGLE-WIREDconfiguration,asingleamplifierdriveseachloudspeaker
throughasingleloudspeakercable.TheKEOSAsaredeliveredconfiguredfor
this method of operation.
BI-WIRINGimprovestheperformance of aloudspeaker.Asingleamplifieris
stillused,butthis drives each loudspeaker throughtwo loudspeakercables,
one for the bass/midrange section, and one for the treble section. By
separating the cables to these sections, interaction between the bass and
treblecurrentsisreduced.Theextracostofanadditionalpairofloudspeaker
cables is more than justified by the improvement in sound quality gained.
In the BI-AMPLIFIED configuration, two amplifiers are used to drive the
speakers,suchthatthebass/midrangeandtreblesectionsofeachloudspeaker
are individually powered by a dedicated amplifier section. Each amplifier
thencarriesonlybassortreblecurrent,whichfurtherreducesinteractionand
loading of the amplifiers.

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NSTALLATIONGUIDE Liftthecabinetsfrom the carton by theirsides
toavoiddamaging drive units. Ifyoucan,keepthepackingfor possible
future transportation.
SPIKES
To fit the spikes to your KEOSAs, lay the loudspeakers on their backs or
tops on a soft surface. Screw the locknuts halfway onto the spikes,
then screw the floor spikes through the washers into the stand base.
Tighten finger tight for the moment. Lift your KEOSAs into their final
position in the room. Gently rock the speakers back and forth while
applying downward pressure by leaning on top of the cabinet. This will
ensure the spikes penetrate the carpet and are in contact with the floor.
Nowadjustthespikesandlocknutsuntilthespeakersareverticalandallfour
spikesarefirmlyin contact with the floor.Try andgentlyrockthespeakerto
see if it is only sitting on three spikes or four. When the speaker is rigidly
sitting on the floor, tighten the lock nuts whilst ensuring the spikes
do not turn.
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CONNECTION
Connection of the loudspeaker to the amplifier should be made with good
quality cable. Linn cable is ideal.
All Linn cable is marked with the Linn symbol to indicate directionality. The
end marked with the circular Linn symbol should point to the loudspeakers,
and the other to the amplifier.
Take care to observe the correct polarity. The red socket is positive and the
blackisnegative. Thepositivewireisidentifiedbyaribalongthesideofthe
cable.
Your Linn retailer can supply you with cables of a suitable length.

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CONFIGURATION
KEOSAs are supplied configured for use in SINGLE WIRED mode. The
configuration can be altered by removing the linking plates on the terminal
panelatthe rear oftheloudspeaker. Toremovethelinkingplates, un-screw
the four terminal collars and remove the two linking plates.

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SINGLE WIRING With both linking plates in place, connect the wiring to
either pair of sockets. To ensure good connections and performance, check
all four collars are tight!
BI-WIRING Connect wiring to treble (top) and bass (bottom) sockets.
Toensuregoodconnectionsandperformance,checkallfourcollarsaretight!
BI-AMPING The exact method of wiring your system in this configuration
depends on the pre-amplifier and amplifiers you are using. Please contact
your retailer for full information.

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POSITIONING
Placethespeakerssothateachspeakeristhesamedistanceawayfromyour
normal listening position. The distance between the speakers should be no
more than the distance from the listening position to either loudspeaker.
KEOSA speakers have been designed to perform best when placed close to
awall. Ideallytherearoftheloudspeakershouldbetween4"and12"(10cm
and 30 cm) from the wall, and at least 18" (45 cm) from any corner. Like all
loudspeakers,theyareinfluencedbythewallbehindthem.Generallyspeaking,
movingtheKEOSAsclosertothebackwallwillincreasethebassoutput,but
too close will make the bass monotonic and sluggish.
They will usually benefit from being angled inwards slightly by between 5
and10degrees.Thisbreaksthestandingwavebetweenthecabinetandthe
wall, and gives a clearer, more tuneful, midrange.
Wherever the KEOSAs are positioned, they will work best when stable and
secure on the floor. Adjust the spikes and lock them firmly so that the
speakers cannot rock.
These are general guidelines and a little experimentation with position and
angle can optimise results for a particular listening room.

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SPECIFICATIONS
Type 2 way loudspeaker with crossover at 2.8kHz
Frequency response 50Hz - 20kHz +/-2dB, 1m on axis.
Input impedance 4 Ohms nominal
Amplifier requirements At least 80W per channel into 4 Ohms.
Wiring options Single-wiring, Bi-Wiring, Bi-amplification.
Size 825mm (H) x 200mm (W) x 275mm (D)
Weight 18kg each.

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GUARANTEE AND SERVICE
This product is guaranteed under the conditions which apply in the
country of purchase.
To help us, please ask your retailer about the Linn warranty scheme
in operation in your country.
In Europe, America and other markets, extended warranty is offered
to customers who register their purchase with Linn. A Registration
Card can be obtained from your retailer and should be stamped by
him.ThiswillalsoenableyoutoreceivetheLinnRECORDNewsletter
and details of music available from Linn.
WARNING Refer all enquiries to authorised dealers only.
Unauthorised servicing or dismantling of the product invalidates the
manufacturer's warranty.
For full warranty details, please refer to the card enclosed.
If you are in any doubt, please contact your nearest Linn dealer. For
information on your nearest dealer, contact the Linn factory in
Scotland or your national distributor.
IMPORTANT Please keep a copy of the sales receipt to establish
the purchase date of the product.
Please ensure that your equipment is insured by you during any
transit or shipment for repair.
LINN PRODUCTS LTD., FLOORS ROAD, WATERFOOT,
EAGLESHAM, GLASGOW G76 0EP, SCOTLAND, U.K.
TELEPHONE: ++44 (0)141 307 7777
FACSIMILE: ++44 (0)141 644 4262
E-MAIL: [email protected]
INTERNET: http://www.linn.co.uk/linn
CUSTOMER SERVICES, U.K.: FREECALL 0500 888 909
CUSTOMER SERVICES, GERMANY: FREECALL 0130 82 21 56
CUSTOMER SERVICES, U.S.A.: TOLLFREE 888-671-LINN