802 Diamond - Speaker BOWERS & WILKINS - Free user manual and instructions

USER MANUAL 802 Diamond BOWERS & WILKINS

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 →

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1. Positioning your 800 Diamond or 802 Diamond1. Unpac

graph TD
    A["1"] --> B["1"]
    A --> C["2"]
    C --> D["4"]
    D --> E["1"]
    D --> F["1"]

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-glide foot 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 the roller-glides themselves 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 roller-glides can be removed and the adjustable spike or rubber feet fitted. This is described in Section 3.

Environmental Information

All Rowers & 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-visiting and 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.

>0.5m 1.5m - 3m >0.5m

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

Multi-channel Audio-visual Systems

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-channel audio-visual systems.

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.

Diagram showing a mechanical assembly with three circular components and a vertical tower, no text or symbols present.

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.

Technical diagram of two flange components with mounting holes and a central circular component (no text or symbols)

Using the TORX driver supplied in the accessory kit, unscrew and remove the four roller-glides as illustrated above. Retain the roller-glides for use should the speaker be moved and re-installed in the future. Once the roller-glides have 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 non-carpeted floors by standing the spikes on coins.

Technical line drawing of two mechanical assembly components with no visible text or symbols

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-set orientation to provide height adjustment, see illustrations above. The height adjustment enables the speaker to be installed with up to 8^ 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.

Mechanical assembly diagram showing two configurations of a spring-loaded component with rotational motion arrows (no text or labels)

With the adjustable foot 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-bar supplied 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 the tommy-bar as illustrated above.

1. Connecting
   

800 Diamond 802 Diamond

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-wiring separates 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-amplification goes 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. If bi-amplification is 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-inverting types will result in a distorted frequency response. If you have a mixture of inverting and non-inverting amplifiers, 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-term high-frequency peaks 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.

1. Running In5. Fine Tuning

2. Aftercare

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 and potentially reduce the impression of depth.

If the bass is uneven with frequency, it is usually due to the excitation of resonance modes in the room. Even small changes in the position of the speakers or the listeners can have a profound effect on how these resonances affect the sound. Try positioning the speakers along a different wall. Even moving large items of furniture can have an effect.

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. Reduce flutter echoes by the use of irregular shaped surfaces such as bookshelves and large pieces of furniture.

For the most discerning listening, remove the bass and midrange grilles by gripping around their edges and gently pulling them away from the cabinet.

The performance of your speakers may change subtly during the initial listening period. If they have been stored in a cold environment, the damping compounds and suspension materials of the drive units will take some time to recover their correct mechanical properties. The drive unit suspensions will also loosen up during the first hours of use. The time taken for the speakers to achieve their intended performance will vary depending on previous storage conditions and how it is used. As a guide, allow up to a week for the temperature effects to stabilise and 15 hours of average use for the mechanical parts to attain their intended design characteristics.

Longer run-in periods (as long as a month) are also sometimes reported and there is evidence to suggest that these have little to do with speakers changing and more to do with listeners becoming familiar with the new sound. This is especially so with highly revealing speakers such as the 800 Series Diamond, where there may be a significant increase in the amount of musical detail compared with what listeners have previously been used to.

800 Series Diamond cabinet surfaces will usually only require dusting. We recommend you use the cloth supplied with the product. If you wish to use an aerosol or other cleaner, apply the cleaner onto the cloth, not directly onto the product and test a small area first, as some cleaning products may damage some of the surfaces. Avoid products that are abrasive, or contain acid, alkali or anti-bacterial agents. Do not use cleaning agents on the drive units. Avoid touching the drive units as damage may result.

Whenever Bowers & Wilkins speakers are finished in real wood, the finest veneers are selected and treated with an ultra-violet resistant lacquer to minimise changes in colour over time. Nevertheless, like all natural materials, the veneer will respond to its environment and a degree of colour change is to be expected. Colour differences may be rectified by exposing all the veneer surfaces equally and evenly to sunlight until the colour is uniform. This process can take several days or even weeks, but may be accelerated by careful use of an ultra-violet lamp. Wood veneered surfaces should also be kept away from direct sources of heat such as radiators and warm air vents in order to minimise the possibility of the wood veneer cracking.

>0.5m 1.5m - 3m >0.5m

0.5m -1m 0.5m -1m

Diagram showing a device with three circular components and an arrow indicating rotation (no text or symbols)

Technical line drawing of two mechanical flange assembly components (no text or symbols)

Technical line drawing of two mechanical assembly components with no visible text or symbols

Mechanical assembly diagrams showing two configurations of a spring-loaded component with rotational motion arrows (no text or labels)

>0.5m 1.5m - 3m >0.5m

Stereo-Audiosysteme

0.5m -1m 0.5m -1m

Diagram showing a device with three circular components and a vertical tower, no text or symbols present

Technical line drawings of mechanical assembly components (no text or symbols)

>0.5m 1.5m - 3m >0.5m

0.5m -1m 0.5m -1m

Sistemas Audiovisuales Multicanal

Diagram showing a device with three circular components and a vertical tower, no text or symbols present

Technical line drawings of mechanical assembly components (no text or symbols)

>0.5m 1.5m - 3m >0.5m

Impianti stereo

0.5m -1m 0.5m -1m

Impianti audio-video multicanale

Diagram showing a device with three circular components and a vertical tower, no text or symbols present

graph TD
    A["1"] --> B["Rectangle with bar, dot, circle, rectangle inside rectangle"]
    C["2"] --> D["Rectangle with pencil, line, arrow, and ruler inside rectangle"]
    style A fill:#f9f,stroke:#333
    style C fill:#f9f,stroke:#333

>0.5m 1.5m - 3m >0.5m

0.5m -1m 0.5m -1m

Meerkanalen Audiovisuele Systemen

Diagram showing a device with three circular components and a vertical tower, no text or symbols present

graph TD
    A["1"] --> B["1: Screen icon"]
    B --> C["1: Square grid icon"]
    D["2"] --> E["1: Beaker icon"]
    E --> F["4: Paintbrush icon"]
    G["1"] --> H["1: Line drawing icon"]
    H --> I["1: Arrow symbol"]

>0.5m 1.5m - 3m >0.5m

0.5m -1m 0.5m -1m

Diagram showing a device with three circular components and a vertical tower, no text or symbols present

graph TD
    A["1"] --> B["Rectangle with two horizontal bars"]
    C["2"] --> D["Rectangle with a dot on top of rectangle"]
    B --> E["Grid of rectangular blocks"]
    D --> F["Rectangle with a pencil and diagonal line"]
    E --> G["1"]
    F --> H["1"]
    G --> I["1"]
    H --> J["1"]
    I --> K["1"]

>0.5m 1.5m - 3m >0.5m

立体声音频系统

0.5m -1m 0.5m -1m

多声道AV系统

>0.5m 1.5m - 3m >0.5m

ステレオ・オーディオ・システム

0.5m -1m 0.5m -1m

Technical line drawings of mechanical assembly components (no text or symbols)

EU DECLARATION OF CONFORMITY

We,

B&W Group Ltd.

whose registered office is situated at

Dale Road, Worthing, West Sussex, BN11 2BH, United Kingdom

declare under our sole responsibility that the products:

800 Diamond and 802 Diamond

comply with the EU Electro-Magnetic Compatibility (EMC) Directive 89/336/EEC, in pursuance of which the following standards have been applied:

EN 61000-6-1 : 2007

EN 61000-6-3 : 2001

EN 55020:2002

EN 55013:2001

and comply with the EU General Product Safety 2001/95/EC, in pursuance of which the following standard has been applied:

EN 60065:2002

This declaration attests that the manufacturing process quality control and product documentation accord with the need to assure continued compliance.

The attention of the user is drawn to any special measures regarding the use of this equipment that may be detailed in the owner's manual.

Signed:

G Edwards

Executive Vice President, Operations

B&W Group Ltd.

Bowers & Wilkins

B&W Group Ltd

Dale Road

Worthing West Sussex

BN11 2BH England

T [phone]

F [phone]

[e-mail]

www.bowers-wilkins.com

B&W Group (UK Sales)

T [phone]

E [e-mail]

B&W Group North America

T [phone]

E [e-mail]

B&W Group Asia Ltd

T [phone]

E [e-mail]

Copyright © B&W Group Ltd. E&OE

Printed in England