Bowers & Wilkins 800 User Manual
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800 Diamond

802 Diamond

Welcome and thank you for choosing Bowers & Wilkins. Our founder, John Bowers,

believed that imaginative design, innovative engineering and advanced technology were keys that could unlock the enjoyment of audio in the home. His belief is one that we continue to share and inspires every product we design.

The 800 Series Diamond speakers are very high performance products that reward thoughtful

installation, so we would suggest that you take some time to read this manual before you begin the installation process. Continue to page 4

Bienvenido a Bowers & Wilkins. Gracias por elegir Bowers & Wilkins. John Bowers, nuestro fundador, estaba firmemente convencido de que el diseño imaginativo, la ingeniería innovadora y la tecnología avanzada eran las claves a la hora de llevar el disfrute del sonido a la intimidad del hogar. Una creencia que seguimos compartiendo y que inspira todos y cada uno de los productos que diseñamos.

Las cajas acústicas de la Serie 800 Diamond son productos de muy altas prestaciones que agradecen una instalación a conciencia, por lo que le sugerimos que se tome su tiempo para leer este manual antes de iniciar el proceso de instalación. Continúa en la página 19

Bienvenue et merci d’avoir choisi Bowers et Wilkins. Lorsque John Bowers a créé sa société, il savait déjà qu’un design imaginatif, une conception innovante et une technologie avancée seraient les clés du plaisir de l'écoute de la musique chez soi. C’est cette philosophie qui, aujourd’hui, continue de nous inspirer pour la conception de chaque nouvel appareil.

Les enceintes 800 Series Diamond sont des modèles à très hautes performances, nécessitant une installation soignée ; aussi nous suggérons vous de prendre le temps de lire ce manuel avant d’en commencer l’installation. Suite page 9

Benvenuti e grazie per aver scelto un prodotto Bowers & Wilkins. Il nostro fondatore, John Bowers, era convinto che design attraente, capacità d’innovare e tecnologie all’avanguardia fossero fattori vincenti per la riproduzione audio domestica. Le sue idee sono ancor oggi condivise da noi tutti e fonte d’ispirazione per ogni nuovo modello che progettiamo.

I modelli della Serie 800 Diamond sono diffusori di altissime prestazioni che meritano di essere installati in maniera scrupolosa. Vi suggeriamo pertanto di leggere attentamente questo manuale prima di iniziare.

Continua a pagina 24

Willkommen bei Bowers & Wilkins.

Der Firmengründer John Bowers war der Meinung, dass ein wunderschönes Design, eine innovative Konstruktion und ausgeklügelte Technologien die Schlüssel zu Audio-Entertainmentder Extraklasse in Ihrem Zuhause sind. Wir teilen seine Meinung und jedes von uns entwickelte Produkt basiert darauf.

Die Lautsprecher der 800 Serie Diamond sind sehr leistungsstarke Produkte, deren Installation gut durchdacht werden muss. Wir empfehlen daher, sich ein wenig Zeit zu nehmen und diese Bedienungsanleitung vor der Installation zu lesen.

Fortsetzung auf Seite 14

Welkom en dank u voor het kiezen van Bowers & Wilkins. Onze oprichter John Bowers, was ervan overtuigd dat een fantasievol ontwerp, innovatieve

techniek en moderne technologie de sleutels vormden tot muziekbeleving thuis. Het is deze overtuiging waar we nog steeds van uitgaan en die de inspiratie vormt voor elk product dat we ontwerpen.

De 800 Serie Diamond luidsprekers zijn zeer hoogwaardige producten die een zorgvuldige installatie verdienen en daarom raden we u aan dat u de tijd neemt om deze handleiding te lezen voordat u aan het installeren begint. Lees verder op pagina 29

Добро пожаловать и благодарим вас за приобретение продукта компании Bowers & Wilkins.

Наш основатель, Джон Бауэрс, верил в то, что творческий подход в проектировании, новаторская конструкция и передовые технологии смогут открыть людям путь к подлинному звучанию в доме. Мы продолжаем разделять его веру, и она вдохновляет нас при проектировании всех новых продуктов.

Акустические системы Серии 800 Diamond – это продукт очень высокого качества, который заслуживает хорошо продуманной инсталляции,

поэтому мы рекомендуем вам уделить некоторое время на прочтение этого Руководства перед тем как начать процесс установки. Продолжение на стр. 34


1. Unpacking Your Speakers




2. Positioning your 800 Diamond or 802 Diamond









































The 800 Diamond and 802 Diamond are very heavy and we strongly suggest that they are unpacked in the room in which they are to be used by two people working together. It is also a sensible precaution to remove jewellery to negate the risk of scratching the speakers’ surface finish.

The table above illustrates the component parts that are packed with the 800 Diamond and 802 Diamond. In the unlikely event that anything is missing please contact the retailer from whom you purchased the speakers.

All grilles attach magnetically. When fitting the midrange grille, rotate it to find the alignment with strongest pull.

Tweeter diaphragms are very delicate and easily damaged. Any mishandling of the tweeter grille close to the unit may result in the grille being attracted into the diaphragm. For this reason, the tweeter grille is supplied ready fitted and we recommend that you leave it in place.

The speakers are shipped with roller-glidefeet fitted to their undersides to aid manoeuvring them close to their final positions. However, thanks to the extreme weight of the speakers, it is possible for theroller-glidesthemselves to leave marks in vulnerable floor surfaces. It is advisable therefore to protect the floor using an intermediate layer of carpet or floor tiles, for example, as the speaker is moved.

Once the speaker is close to its final position, the rollerglides can be removed and the adjustable spike or rubber feet fitted. This is described in Section 3.

Environmental Information

All Bowers & Wilkins products are designed to comply with international

directives on the Restriction of Hazardous Substances (RoHS) in electrical and electronic equipment and the disposal of Waste Electrical

and Electronic Equipment (WEEE). These symbols indicate compliance and that the products must be appropriately recycled or processed in accordance with these directives. Consult your local waste disposal authority for guidance.

General Guidelines

In either stereo or home theatre installations, try to ensure that the immediate surroundings of each speaker are similar in acoustic character. For example, if one speaker is adjacent to bare walls while the other is adjacent to soft furnishings and curtains, both the overall sound quality and the stereo image are likely to be compromised.

The location of room boundaries fundamentally affects the sound of a speaker. As more surfaces come

into close proximity, the speaker’s bass and lower midrange will become more prominent. At the same time, the speaker’s stereo image is likely to become less focussed and portray less depth. The aim when positioning speakers is to find a happy medium between domestic constraints, tonal balance and stereo image quality. Re-visitingand adjusting the position of your speakers following initial installation will probably further improve the sound quality and is usually worthwhile.

The 800 Diamond and 802 Diamond have an optimum vertical listening window which is designed to cover the average ear height range of seated listeners, between 0.9m and 1.2m. If you have very low seating, the 800 Diamond and 802 Diamond adjustable feet enable a small degree of vertical tilt should this be required. See Section 3.


3. Installing and Adjusting The Feet



1.5m - 3m

Stereo Audio Systems

To begin with, the speakers should be positioned between 1.5m and 3m apart and a similar distance away from the listening position. The speakers should be at least 0.5m away from the back wall, and at least 0.5m away from any side walls. It may help the stereo image clarity if the speakers are each angled inward towards the listening position, especially if they are relatively far apart. The diagram above illustrates speaker positioning for stereo audio systems.

0.5m -1m

0.5m -1m


If the speakers are to be used for the front channels in a home theatre system they should be placed closer together than for stereo audio because the surround channels tend to widen the stereo image. Positioning the speakers within approximately 0.5m of the sides of the video screen will also help keep the sound image in scale with the visual image. As with conventional stereo positioning, the speakers should ideally be at least 0.5m away from any side walls. The diagram above illustrates speaker positioning for multi-channelaudio-visualsystems.

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. Plasma, LCD and OLED screens are not affected by magnetic fields.

With the speaker close to its final position, the rollerglides can be removed and the adjustable spike or rubber feet fitted. This is described in the following paragraphs and illustrations.

Using a second person to help, gently lay the speaker on its side as illustrated above. Ensure that the surface it lies on will not damage its finish. Despite the fact that it is compliantly mounted and moves a little, the speaker can be handled by gripping its “head” unit. Take care not to touch the drive units while handling the speaker.




Using the TORX driver supplied in the accessory kit, unscrew and remove the four roller-glidesas illustrated above. Retain theroller-glidesfor use should the speaker be moved andre-installedin the future. Once theroller-glideshave been removed the supplied adjustable feet may be fitted in their place.

The adjustable feet incorporate a floor spike at one end and a rubber pad at the other end and can be installed with either towards the floor. The spikes are designed to pierce carpet and rest on the floor beneath, both to protect the carpet from indentation and to provide the speaker with a solid foundation. We recommend for optimum performance that the spikes are used but if the nature of the floor precludes their use they can be reversed to present rubber pads to the floor.

Note: Spike feet can still be used on delicate noncarpeted floors by standing the spikes on coins.

The adjustable feet are attached to the underside of the speaker via conical threaded bosses that can be fitted in either a protruding or in-setorientation to

provide height adjustment, see illustrations above. The height adjustment enables the speaker to be installed with up to 8º downward or upward tilt if required by fitting the bosses the opposite way round front and rear. If you do not intend to tilt the speakers fit all the bosses in-set.

Screw the feet into the bosses, with the spikes or the rubber pads exposed as desired, leaving just enough thread to fit the locking rings. Fit, but do not tighten, the locking rings.

With the adjustable feet fitted the speaker can be carefully returned upright. Take care not to allow the entire weight of the speaker to rest at an angle on one or two feet as it is turned. Also take care that careless handling of the speaker with spikes fitted does not cause injury.

Once the speaker is upright, adjust the feet using the tommy-barsupplied to give the amount of tilt required and to take up any rocking as illustrated above. Finally, tighten the locking ring against the boss, again using thetommy-baras illustrated above.


4. Connecting

All connections should be made with the audio equipment switched off.

The 800 Diamond and 802 Diamond speaker terminals accept a variety of cable terminations: 4mm banana plugs, 6mm and 8mm (1/4 in and 5/16 in) spades, or bare wires up to 4mm (5/32 in) diameter.

Important Safety Notice

In certain countries, notably those in Europe, the use of 4mm banana plugs is considered

a potential safety hazard, because they may be inserted into the holes of unshuttered mains supply sockets. In order to comply with European CENELEC safety regulations, the 4mm holes in the ends of the terminals are blocked by plastic pins. If you are using the products in any country where these conditions apply, you should ensure that any banana plugs cannot be used in an unsafe manner by children or other uninformed persons.

Ask your dealer for advice when selecting speaker cable. Keep its total impedance below the maximum recommended in the speaker specification and use a low inductance cable to avoid attenuation of high frequencies.

There are two pairs of terminals at the back of each speaker that enable bi-wiring(left). For conventional, single wire connection, fit the supplied link wires to join the like polarity terminals together (right). If the cable from the amplifier has spade connectors, fit the link wires using the 4mm hole at the end of each terminal.

If it has banana plugs, fit the link wires into the cross holes. You may also need to remove the caps of the two terminals used for the cable from the amplifier in order to maximise contact area, especially if its banana plugs are short.

Ensure that the positive terminals on the speaker (red) are connected to the positive output terminal on the amplifier and the negative terminals on the speaker

(black) are always connected to the negative output terminal on the amplifier. Incorrect connection will not result in damage but will cause poor stereo imaging and loss of bass. Always screw the terminal caps down fully to prevent rattles.

Note: Bi-wiringseparates the signal paths to each section of the speaker and can improve both stereo imaging and detail resolution. It also enables the use of different types of cable for each frequency band.

Bi-amplificationgoes a stage further and involves the use of two independent power amplifier channels for each speaker. This is not the same as a fully “active” drive as the speaker's internal passive crossover is still used. Ifbi-amplificationis employed, ensure that each amplifier channel has the same gain, otherwise the speaker’s tonal balance will be distorted.

Check also the absolute polarity of the amplifiers. Some amplifiers invert the signal, and their use in combination with non-invertingtypes will result in a distorted frequency response. If you have a mixture of inverting andnon-invertingamplifiers, reverse the polarity of the speaker connections from the inverting amplifier.

Bear in mind that, even though midrange and, even more so, tweeter drivers can (and only need to) handle less continuous power than bass drivers, the amplifier feeding them needs to have an adequate voltage swing in order to supply the short-termhigh-frequencypeaks in music without distortion. A high voltage capability implies high power, so it is not particularly desirable to have a lower powered amplifier feeding the midrange and tweeter than is used for bass drivers.