B&W XT4 - Speakers B&W - Free user manual and instructions

USER MANUAL B&W XT4 B&W

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 Group Ltd. 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. 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. Owner’s manual Introduction This limited warranty is valid for a period of five years from the date of purchase or two years for electronics including amplified loudspeakers. Thank you for choosing B&W. Terms and Conditions B&W maintains a network of dedicated distributors in over 60 countries who will be able to help you should you have any problems your dealer cannot resolve.

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. Please read this manual fully before unpacking and installing the product. It will help you to optimise its performance. Unpacking Check in the carton for:

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, Positioning

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,

Position the speakers so they subtend an angle of approximately 60º at the centre of the listening area

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, Keep the speaker baffles at least 0.5m clear of walls. Clearance from the rear wall improves the impression of depth in the sound image.

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. How to claim repairs under warranty Should service be required, please follow the following procedure:

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 where the equipment can be serviced.

2 foam plugs 4 spike feet with lock nuts 4 stabilisers 4 M6 cap head screws 4 self-adhesive clear rubber feet 5mm Allen key As an initial guide: 2-channel audio (figure 1) Multi-channel audio front left and right (figure 2)

The speakers may be placed closer together than for 2-channel audio, because the surround channels tend to widen the image. The angle subtended at the centre of the listening area may be reduced to 40º. Home theatre front left and right (figure 3)

Position the speakers approximately 0.5m (20 in) from the sides of the screen, to keep the sound image in scale with the visual image on screen. Stray magnetic fields The speaker drive units create stray magnetic fields that extend beyond the boundaries of the cabinet. We recommend you keep magnetically sensitive articles (CRT television and computer screens, computer discs, audio and video tapes, swipe cards and the like) at least 0.5m from the speaker. LCD and plasma screens are not affected by magnetic fields. Connections (figure 4) All connections should be made with the equipment switched off. Feed the cable through the half-round aperture at the bottom rear of the cabinet, up through the cable channel in the cabinet extrusion to the terminal panel. Connect the positive terminal on the speaker (upper terminal marked + and coloured red) to the positive output terminal of the amplifier and negative (lower terminal marked - and coloured black) to negative. Incorrect connection can result in poor imaging and loss of bass. Ask your dealer for advice when choosing cable. Keep the total impedance below the maximum recommended in the specification and use a low inductance cable to avoid attenuation of the highest frequencies. Fine Tuning Before fine tuning, double check that all the connections in the installation are correct and secure. Moving the speakers further from the walls will reduce the general level of bass. Space behind the speakers also helps to create an impression of depth. Conversely, moving the speakers closer to the walls will increase the level of bass. To reduce the bass level without moving the speakers further from the wall, fit one or both foam plugs in the port tube (figure 5). To access the ports, remove the grille by gently pulling it away from the cabinet. Uneven bass is usually due to resonance modes in the room and it is worth experimenting with both speaker and listener position. Try mounting the speakers along a different wall. Even moving large pieces of furniture can have an effect. If the central image is poor, try moving the speakers closer together or toeing them in so they point at or just in front of the listeners. (figure 6) If the sound is too harsh, increase the amount of soft furnishing in the room (for example use heavier curtains), or reduce it if the sound is dull and lifeless. Test for flutter echoes by clapping your hands and listening for rapid repetitions. They can be reduced by the use of irregular shaped surfaces such as bookshelves and large pieces of furniture. Ensure the speakers stand firmly on the floor. If they stand on a carpet, fit the spike feet and stabilisers supplied after you have optimised the positioning. The spikes are designed to pierce through carpeting to the floor surface. (figure 7) First fit the stabilisers to the base of the speaker. Locate the split pin of each stabiliser in the clearance hole in the base and secure using the M6 cap head screws and 5mm Allen key provided. Screw the lock nuts fully onto the spikes and screw the spikes fully into the threaded inserts in the stabilisers. If the cabinet rocks, screw down the appropriate spikes from above using the 5mm Allen key, until the speaker stands firmly on the floor. Then lock the spikes in place by tightening the lock nuts against the stabiliser. If you do not have a carpet, fix the four self-adhesive clear rubber feet to the base of the speaker. (figure 8) Aftercare The cabinet surface usually only requires dusting. If you wish to use an anti-static spray cleaner, spray onto the cleaning cloth, not directly onto the cabinet. Avoid getting cleaning agents on the grille fabric as staining may result. The grille fabric may be cleaned with a normal clothes brush or vacuum cleaner attachment. The grilles protect the drive units from damage and we advise that they be left in place unless fitting of port plugs or servicing is required. Français

XT4 Description Drive units Frequency range Frequency response 1x ø25mm (1 in) aluminium dome high-frequency 1x ø130mm (5 in) woven Kevlar® cone midrange 2x ø130mm (5 in) Paper/Kevlar® cone bass -6dB at 34Hz and 50KHz 40Hz - 22kHz ±3dB on reference axis Dispersion Within 2dB of reference response Horizontal: over 60º arc vertical: over 10º arc Sensitivity 86dB spl (2.83V, 1m) Harmonic Distortion 2nd and 3rd harmonics (90dB, 1m) <1% 120Hz - 20kHz Nominal impedance 8Ω(minimum 3.1Ω) Crossover frequencies Recommended amplifier power Max. recommended cable impedance Dimensions Net weight

3-way vented-box system 360Hz, 3.5kHz 50W - 150W into 8Ω on unclipped programme 0.1Ω Height: Width: Depth: 1138mm (44.8 in) (not including feet) 152mm (6 in) 200mm (7.9 in) 24.5kg (54 lb) II11436 Issue 4 B&W Group Ltd Dale Road Worthing West Sussex BN11 2BH England T +44 (0) 1903 221800 F +44 (0) 1903 221801 info@bwgroup.com www.bwspeakers.com B&W Group (UK Sales) T +44 1903 221 500 E uksales@bwgroup.com B&W Group North America T +1 978 664 2870 E marketing@bwgroupusa.com B&W Group (Asia) Ltd T +852 2 869 9916 E showroom@bwgroup.hk Copyright © B&W Group Ltd. E & OE Kevlar is a registered trademark of DuPont. Nautilus is a trademark of B&W Group Ltd. Printed in Malaysia.