Bowers & Wilkins 803S, 800D, DS8 Channel Surround, Channel Rear, Surround Speaker Height, Mounting

Use the bottom switch on the front baffle when selecting between monopole and dipole modes. In the

•position, the speaker defaults to monopole. (figure 8)

However, if a 12V signal is applied to the trigger input, internal relays switch to dipole mode. In the •• position, the speaker is always in dipole mode, whatever the trigger signal. (figure 9)

Set the direction of the positive and negative dipole lobes using the centre toggle switch marked ’ on the front baffle. The stem of the switch points in the direction of the positive lobe.

For the smoothest panning of sounds between all the speakers in the installation, side speakers for all applications and rear speakers for 6.1 and 7.1 applications should have the polarity of the lobes set according to figure 10.

Application	f Go to
5.1 channel surround	2.4
6.1 and 7.1 channel side	2.5
6.1 channel rear	2.6
7.1 channel rear	2.7

2.45.1 CHANNEL SURROUND

DS8S only

If you are using the DS8S in dipole mode only, place the speakers on the side walls approximately 60cm (2 ft) above ear height and in line with the centre of the listening area. (figure 11)

If you are using the DS8S and switching between dipole and monopole modes for different applications, place the speakers on the side walls approximately 60cm (2 ft) above ear height and slightly behind the centre of the listening area, keeping the listeners within the 60º wide null zone. (figure 12)

All models except DS8S

Place the speakers approximately 120º round from front centre. The shape of the room will dictate whether they are placed on a side or rear wall. (figure 13)

fGo to section 2.8

2.56.1 AND 7.1 CHANNEL SIDE

Place the speakers to the side, in line with the centre of the listening area. (figures 14 & 15)

fGo to section 2.8

2.66.1 CHANNEL REAR

The rear channel of 6.1 EX recordings may be reproduced by a single speaker

placed directly behind the centre of the listening area. (figure 14)

fGo to section 2.8

2.77.1 CHANNEL REAR

These recommendations may also be used for a 6.1 channel system using two speakers at the rear, wired in parallel to the same channel.

Place two speakers behind the listening area to make an angle of approximately 40º to the centre of the listening area.

(figure 15)

fContinue to section 2.8

2.8SURROUND SPEAKER HEIGHT

If you use the system for movies, place the speakers approximately 60cm (2 ft) above ear height. (figure 16)

This is also the preferred height for the dipole mode of the DS8S in all applications, although it may also be mounted on the ceiling. Try to keep it around 0.5m (20 in) from the side wall. (figure 17)

For all other models, if you are listening to audio only and there are only one or two listeners, mount bookshelf speakers with the tweeters approximately at ear height.

If there are more listeners, raise the speakers just above head height to avoid obstructing the sound to any listener. (figure 18)

fContinue to section 3.

3	MOUNTING
Model	f Go to
800D/801D/802D	3.1
HTM1D	3.2
803D/803S/804S	3.4
805S/HTM2D/HTM3S/HTM4S 3.5
SCMS	3.6
DS8S	3.7

3.1800D/801D/802D

On delivery, the speakers are fitted with roller glides to aid movement. Because of the extreme weight of these speakers, the rollers can cause indentation of wooden and other vulnerable floor surfaces. You should therefore take steps to protect such surfaces by using an intermediate layer such as floor tiles or thick felt. The latter will allow you to glide the speakers over smooth surfaces if you push the cabinet low down.

Bass performance may be enhanced by using the optional adjustable feet. These are produced separately in a pack of 4 (800 Series Floor Spike Kit, part no. FP22359). They have 40mm (1.6 in) of vertical adjustment, allowing a certain degree of tilt if desired, and are reversible, having a spike for carpets on one end and a clear rubber pad for vulnerable surfaces on the other.

To fit the optional feet, first lay the speaker down on its side (to avoid possible damage to terminals or drive unit diaphragms). (figure 19)

Due to the weight of the speaker, this should be done by at least two people. Remove rings and other jewellery to avoid scratching the surfaces and provide a soft surface such as a piece of carpet that the speaker can lie on. You may also like to wear non-slip gloves.

Do not be afraid to handle the speaker by lifting on the side of the spherical midrange 'head'. It is a little unnerving, because the head is flexibly mounted on the bass cabinet, but it does come to a stop and is strong enough to take the weight of the speaker.

Using the Torx key supplied with the kit, remove the 4 roller glides from the plinth of the speaker and replace them with the feet. (figure 20)

Adjust the feet as described in section 3.3.

fGo to section 3.3.

3.2HTM1D

Supplied with the speaker are

4 adjustable feet and screws for fitting them to the cabinet. They have 40mm (1.6 in) of vertical adjustment, allowing tilt up to 8º if desired. This is useful, as the most common situation will be for the speaker to be mounted on the floor under a large screen.

The feet are reversible, having a spike for carpets on one end and a clear rubber pad for vulnerable surfaces on the other.

Fit the feet during the unpacking procedure when the underside of the cabinet is exposed. This allows the inner packing pieces to remain in place against the underside of the cabinet as protection whilst the speaker is rolled over into the upright position, and be easily removed afterwards.

First read section 3.3 to familiarise yourself with the design. If the speaker is to be tilted back, fit the front threaded bosses with the cones facing outwards (figure 21) and the rear ones with the cones facing inwards (figure 22). This is as illustrated on the separate sheet placed in the carton.

3