Detailed instructions for use are in the User's Guide.
AS1 Owner's Manual and Warranty
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SURROUND CENTRE FRONT SUBWOOFER
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Power Amplifier
Contents
English Limited Warranty...........1 Owner's Manual............1 Français Garantie limitée.............3 Manuel d'utilisation .......4 Deutsch Beschränkte Garantie ...5 Bedienungsanleitung.....5 Español GarantÃa limitada...........7 Manual de instrucciones ................7 Português Garantia limitada...........9 Manual do utilizador .....9 Italiano Garanzia limitata .........10 Manuale di istruzioni ...11 Nederlands Beperkte garantie .......12 Handleiding ................12 Dansk Begrænset garanti ......14 Brugervejledning .........14
µ ....................15 ....16 ....................17 ............18 Norsk Tidsbegrenset garanti........................19 Bruksanvisning ...........20 Svenska Begränsad garanti ......20 Bruksanvisning ...........20 Suomi Takuuehdot.................21 Omistajan kasikirja ......21 .......................21 .....................21 .......................22 ....................22
English Limited Warranty
Dear customer, Welcome to B&W. This product has been designed and manufactured to the highest quality standards. However, if something does go wrong with this product, B&W Loudspeakers and its national distributors warrant free of charge labour (exclusion may apply) and replacement parts in any country served by an official B&W distributor. This limited warranty is valid for a period of five years from the date of purchase or two years for electronics including amplified loudspeakers.
where the equipment can be serviced. You can call B&W in the UK or visit our web site to get the contact details of your local distributor. To validate your warranty, you will need to produce this warranty booklet completed and stamped by your dealer on the date of purchase. Alternatively, you will need the original sales invoice or other proof of ownership and date of purchase.
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Accessories  Do not place this product on an unstable cart, stand, tripod, bracket or table. The product may fall, causing serious injury to a child or adult, and serious damage to the product. Use only with a cart, stand, tripod, bracket or table recommended by the manufacturer or sold with the product. Any mounting of the product should follow the manufacturerÃs instructions and should use a mounting accessory recommended by the manufacturer. A product and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the product and cart combination to overturn.
Owner's manual Important Safety Instructions
CAUTION
RISK OF ELECTRIC SHOCK DO NOT OPEN
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Terms and Conditions
1 The warranty is limited to the repair of the equipment. Neither transportation, nor any other costs, nor any risk for removal, transportation and installation of products is covered by this warranty. This warranty is only valid for the original owner. It is not transferable. This warranty will not be applicable in cases other than defects in materials and/or workmanship at the time of purchase and will not be applicable: for damages caused by incorrect installation, connection or packing, for damages caused by any use other than correct use described in the user manual, negligence, modifications, or use of parts that are not made or authorised by B&W, for damages caused by faulty or unsuitable ancillary equipment, for damages caused by accidents, lightning, water, fire heat, war, public disturbances or any other cause beyond the reasonable control of B&W and its appointed distributors, for products whose serial number has been altered, deleted, removed or made illegible, if repairs or modifications have been executed by an unauthorised person. This guarantee complements any national/regional law obligations of dealers or national distributors and does not affect your statutory rights as a customer.
Caution:
To reduce the risk of electric shock, do not remove the back panel. No userserviceable parts inside. Refer servicing to qualified personnel.
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Explanation of Graphical Symbols:
The lightning flash within an equilateral triangle is intended to alert you to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute an electric shock to persons. The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 1 Read Instructions  All the safety and operating instructions should be read before the appliance is operated. Retain Instructions  The safety and operating instructions should be retained for future reference. Heed Warnings  All warnings on the appliance and in the operating instructions should be adhered to. Follow Instructions  All operating and use instructions should be followed. Cleaning  Unplug the product from the wall outlet before cleaning. Refer to the cleaning instructions in the section of the manual titled "Aftercare". Attachments  Do not use attachments not recommended by the product manufacturer, as they may cause hazards. Water and Moisture  Do not use this product near water  for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool and the like.
10 Ventilation  Openings in the rear control panel are provided for ventilation and to ensure reliable operation of the product and to prevent it from overheating, and these openings must not be blocked or covered. The panel itself forms part of the cooling mechanism and must not be obscured by placing the product on a bed, sofa, rug, or other similar surface. The product should not be placed in a built-in installation, such as a rack, bookcase or cabinet unless proper ventilation is provided or the manufacturer's instructions have been adhered to. 11 Power Sources  This product should be operated only from the type of power source indicated on the marking label situated on the rear panel above the power input socket. If you are not sure of the type of power supply to your home, consult your product dealer or local power company. 12 Grounding or Polarisation  The appliance is not required to be grounded. Versions of the product marked for use with 120V power supplies are equipped with a power cord fitted with a polarised alternating line plug (a plug having one blade wider than the other). This plug will fit onto the power outlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polarised plug. When using an extension power-supply cord or a power-supply cord other than that supplied with the appliance, it should be fitted with the appropriate mouldedon plugs and carry safety approval appropriate to the country of use. 13 Power Cord Protection  Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed on or against them, paying particular attention to cords at plugs, convenience receptacles and the point where they exit from the appliance.
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How to claim repairs under warranty
Should service be required, please follow the following procedure: 1 If the equipment is being used in the country of purchase, you should contact the B&W authorised dealer from whom the equipment was purchased. If the equipment is being used outside the country of purchase, you should contact B&W national distributor in the country of residence who will advise 6
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14 Overloading  Do not overload wall outlets, extension cords or integral convenience receptacles, as this can result in a risk of fire or electric shock. 15 Non-use Periods  The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time. 16 Object and Liquid Entry  Never push objects of any kind into this product through openings, as they may touch dangerous voltage points or short out parts that could result in a fire or electric shock. Never spill liquid of any kind on the product. 17 Servicing  Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel. 18 Damage Requiring Service  Unplug this product from the wall outlet and refer servicing to qualified personnel under the following conditions: a When the power-supply cord or plug has been damaged. b If liquid has been spilled or objects have fallen into the appliance. c If the product has been exposed to rain or water. d If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions, as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation. e If the product has been dropped, or damaged in any way. f When the product exhibits a distinct change in performance  this indicates a need for service.
WARNINGS:
CAUTION: 120V versions of the product are supplied with a power cord equipped with a polarised plug. To prevent electric shock, match wide blade of plug to wide slot, fully insert. Ensure the plug is fully inserted into the wall outlet or extension cord receptacle to prevent blade or pin exposure. To prevent fire or shock hazard, do not expose this equipment to rain or moisture. Observe all warnings on the equipment itself. To avoid electrical shock, do not open the enclosure or remove the amplifier from the rear panel. There are no user serviceable parts inside. Refer all service questions to an authorised B&W dealer. Ensure that the voltage indicated on the amplifier panel matches that of the power supply. The mains fuse holder is located on the back panel of the amplifier module. Replacement fuse must be of the same type and rating as supplied and marked on the product. The product does not require earthing (grounding). Ensure the product is adequately ventilated. Do not prevent air from circulating round the rear amplifier panel. Do not obscure or block the openings in the panel. Do not use the product in a rack, bookcase, cabinet or cupboard unless the volume behind the product is adequately ventilated to the room space.
B&W loudspeakers are distributed to over 60 countries worldwide and we maintain an international network of carefully chosen and dedicated distributors. If you have a problem, which your dealer cannot resolve, our distributors will be more than willing to assist you.
Unpacking (figure 1)
The easiest way to unpack the subwoofer and avoid damage is as follows: · Open the carton flaps right back and invert the carton and contents. · Lift the carton away from the product. We recommend that you retain the packaging for future use.
Positioning the subwoofer
Because the subwoofer produces only lowfrequency sounds, positioning is less critical in some respects compared to full-range speakers. Directional information is much less precise and you have more choice where to place the speakers to good effect. This said, best results are obtained if the subwoofer is placed between the satellite speakers or in the vicinity of one of them. If you use two subwoofers, it is best to put one near each satellite speaker. Placing the subwoofer behind the listeners, even in surround sound installations, generally gives inferior imaging, but may be an acceptable compromise if domestic considerations dictate. If the subwoofer is to be used in a confined space (eg in custom furniture), the space must be ventilated to allow sufficient air to circulate and cool the unit. Ask your dealer for advice.
Introduction
Thank you for purchasing the Bowers and Wilkins ASTM1 Active Subwoofer. Since its foundation in 1966, the continuing philosophy of B&W has been the quest for perfect sound reproduction. Inspired by the company's founder, the late John Bowers, this quest has entailed not only high investment in audio technology and innovation but also an abiding appreciation of music and the demands of film sound to ensure that the technology is put to maximum effect. The ASTM1 has been designed for Home Theatre installations and to augment the bass performance of full-range speakers in 2-channel audio use. Adding the subwoofer to your system not only extends the bass to lower frequencies, it improves the midrange clarity by reducing the lowfrequency demands on your existing speakers. Please read through this manual fully before using the subwoofer. All sound installations require some planning and experimentation if ...