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K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 1 Applicable for Reference Series Models 209 and 208, model numbers SP3557 and SP3556 WARNING TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE Explanation of Graphical Symbols CAUTION The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of a sufficient mag
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 2 Important Safety Instructions Please take heed of the following before using the KEF Reference Series Subwoofer. Note also that the word “appliance” shall refer to the KEF Reference Series Model 209/ Model 208 Subwoofer, or any part of it. 1. Read Instructions - All the Safety and Operating Instructions should be read before the appliance is operated. 2.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 4 Contents General Care of your System Important Safety Instructions and Information General Care of Your System Contents Reference Model 209 Introduction and Overview 1. Avoid temperature extremes. 2. Avoid damp. 3. Avoid direct sunlight. 4. Clean with the KEF cloth provided. ACE Technology Room Correction 5. Do not use spirit based cleaners.
K7262 REF 209208 Combined Manual_v2 10/3/08 16:30 Page 6 Introduction and Overview The KEF Reference Series 209 subwoofer is a ‘state of the art’ subwoofer for use in the very best home theatre and stereo systems. Every component is critically designed to give optimum acoustic performance in a compact, elegant enclosure. The key components in the 209 subwoofer are the drive unit, the amplifier and the enclosure – all three of these contain innovations that make this model a class leader.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 8 Room Correction ACE technology The laws of physics dictate that to get good bass extension out of a loudspeaker you need a large enclosure volume, and to get high output levels you need to move a lot of air. This is why the more expensive loudspeaker systems have large or multiple bass drivers and big enclosures.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 10 Installation and Operation Unpacking, Handling and Aftercare sunlight should, if possible, be avoided. Furthermore the cabinet should not be allowed to become wet. be used for transporting and moving the subwoofer as they do not offer the stability required when the subwoofer is in operation. Each Reference Series 209 subwoofer is supplied with KEF designed substantial spikes and locking nuts (also in the care pack).
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 12 Adjusting the Feet and/or Spikes Subwoofer Positioning Under normal circumstances your subwoofer will be commissioned by your retailer or consultant, who will have been trained in their installation by KEF. The spike/locking nut combination supplied is designed to provide small adjustments, not to compensate for seriously irregular floors. KEF strongly recommend that you do not attempt to level your loudspeakers single-handed.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 14 Rear Panel Information Mains power socket and fuse holder. Please check that the voltage indicated is correct for your country’s mains supply voltage as this subwoofer comes in 110V or 240V versions that are not inter-changeable. Please return to your KEF retailer if the setting is incorrect for the voltage supply in your country so that it can be changed internally. Line input LFE.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 16 Remote Control and Control Functionality Power. Puts the Reference Series 209 subwoofer into or out of standby. The Frequency and Slope controls apply only to the Left and Right line level inputs and are not applicable to the LFE input where it is assumed an external surround sound processor is controlling the bass management externally. Auto/Manual. Switches the Reference Series 209 subwoofer between automatic mode or manual mode.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 18 Connections, Setup and Fine Tuning All connections should be made with the amplifier switched OFF. Ensure the integrity of all connections prior to switching the amplifier ON.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 20 Movie only setup through the LFE input. the power is switched on it needs to be acoustically integrated into your existing system. To do this you will need to use the volume, frequency and phase controls on the subwoofer’s remote control. The remote control allows you to do this whilst seated in your normal listening position.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 22 Using the Preset Equalization options Using the Room Correction facility Left and Right EQs and LFE EQs are pre defined by KEF’s acoustics engineers to allow easy selection of the most useful response adjustments. The Reference 209 subwoofer includes a room correction facility to optimise the performance in different listening environments.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 24 Specifications Grille For cleaning purposes, the grille should be removed from the cabinets and brushed lightly with a soft brush. Alternatively, use a variable suction vacuum cleaner, with soft brush attachment. A dedicated grille assembly is supplied with your subwoofer. However, if you wish you may remove the grille by gently pulling it forward toward you.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 26 Introduction and Overview The subwoofer is the heart of any home theatre system, providing an exhilaration that brings the sound stage physically to life. That is why the same level of attention and care has been taken to develop the Reference Series Model 208 subwoofer as the rest of the Reference Series range. in a highly efficient unit without compromising cabinet design.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 28 Installation and Operation Unpacking, Handling and Aftercare Each Reference Series 208 subwoofer is supplied with KEF designed substantial spikes and locking nuts (also in the care pack). This enables fine adjustment of level, depending on your preferred location of the loudspeakers whatever the floor covering: carpet, tile or block wood. In addition to the spikes and locking nuts each Model 208 also comes with casters.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 30 Subwoofer Positioning Adjusting the Feet Under normal circumstances your subwoofer will be commissioned by your retailer or consultant, who will have been trained in their installation by KEF. The feet and locking nut combination supplied is designed to provide small adjustments, not to compensate for seriously irregular floors. KEF strongly recommend that you do not attempt to level your loudspeakers single-handed.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 32 Rear Panel Information 110V or 240V Voltage Selection Switch. Please check that the voltage indicated is set correctly for your country’s mains supply voltage as this subwoofer comes with a 110V to 115V or 220V to 240V voltage switch. surround sound processor. Please note that single ended (phono) or balanced (XLR) connections are available however they must not be used simultaneously.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 34 Control Functionality Phase. Adjusts the phase of the subwoofer output relative to your main speakers from 0 to 180 degrees in 5 degree steps. Subwoofer/Satellite Integration : Correct Level. This decreases or increases the subwoofers volume relative to the main speakers. Music and Cinema Setting The Music and Cinema Switch changes the internal EQ settings on the Reference Series 208 subwoofer. Music is a flat response as shown below.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 36 Connections, Setup and Fine Tuning All connections should be made with the amplifier switched OFF. Ensure the integrity of all connections prior to switching the amplifier ON.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 38 Movie only setup through the LFE input. available then connect the Left and Right amplifier high level speaker outputs to the speaker inputs of the subwoofer. Once the subwoofer is connected and the power is switched on it needs to be acoustically integrated into your existing system. To do this you will need to use the Level, Frequency and Phase controls.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 40 Specifications Grille For cleaning purposes, the grille should be removed from the cabinets and brushed lightly with a soft brush. Alternatively, use a variable suction vacuum cleaner, with soft brush attachment. A dedicated grille assembly is supplied with your subwoofer. The grille is held on via ‘pegs’ that locate into the front baffle grille-peg sockets.
12/2/08 12:40 Page 42 KEF Heritage KEF was founded in 1961 by an electrical engineer named Raymond Cooke in a Nissen Hut on the premises of a metalworking operation called Kent Engineering & Foundry (hence KEF), on the banks of the River Medway, near Maidstone in Kent. diaphragm, while using new materials for the diaphragm itself.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:40 Page 44 The 1970’s The 1980’s By 1973 the company was developing the concept of computer assisted ‘Total System’ design, at a time when the world’s very first 4-bit microprocessor was still in its infancy. KEF engineers, using a given set of parameters, could for the first time actually “see” what the response characteristics of a loudspeaker system would be.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:41 Page 46 The 1990’s Under new ownership in 1992 KEF Audio found itself equipped with new ideas, new personalities and new products. But the same philosophies of solid engineering and innovation to provide the finest quality product available at its particular price-point remained firmly at the bed-rock. Recognition that year for the Reference Series Model Four had reached a peak with world-wide acclaim.
K7262 REF 209208 Combined Manual_v2 12/2/08 12:41 Page 48 The 2000’s The millennium ushered in a new era of groundbreaking audio innovation. Yet more KEF innovations soon followed. The KIT (KEF Instant Theatre) concept, for example, proved an immediate hit - an integrated multimedia home entertainment system for consumers who want a complete, user-friendly package that offers quality sound without being complicated to set up.
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K7262_Cover for Combined Manual 12/2/08 12:48 Page 2 www.kef.com GP Acoustics (UK) Ltd., Eccleston Road, Tovil, Maidstone, Kent, ME15 6QP U.K. Tel: + 44 (0)1622 672261 Fax: + 44 (0)1622 750653 GP Acoustics (US) Inc., 10 Timber Lane, Marlboro, New Jersey 07746 U.S.A. Tel: +(1) 732 683 2356 Fax: +(1) 732 683 2358 GP Acoustics GmbH, Heinrichstraße 51, D-44536 Lünen, Deutschland. Tel: +49 (0) 231 9860-320.
