Bedienungsanleitung Bowers Wilkins HTM61 (Seite 5 von 44) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Portugiesisch, Spanisch, Polnisch)

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English

Owner’s manual

Dear customer,

Thank you for choosing B&W. Please read this manual

ully before unpacking and installing the product. It will

help you to optimise its performance. B&W maintains

a network of dedicated distributors in over 60 countries

ho will be able to help you should you have any

problems your dealer cannot resolve.

Environmental Information

B&W pro

ducts are designed to comply with

international directives on the Restriction of

azardous Substances (RoHS) in electrical and

electronic equipment and the disposal of Waste

Electrical and Electronic Equipment (WEEE). The

crossed wheelie bin symbol indicates compliance and

that the products must be appropriately recycled or

processed in accordance with these directives.

Carton Contents

Check in the carton for:

1 Foam plug.

4 Self-adhesive rubber pads.

Positioning

If using a projection television with an acoustically

transparent screen, place the speaker behind the

centre of the screen. Otherwise position it directly

above or below the screen, whichever is closest to ear

level. Align the front of the speaker approximately level

with the screen. The speaker is best used mounted on

a rigid shelf or wall bracket or on a rigid floor stand. If

the speaker is to be placed either directly on top of a

television or in a rack shared with other AV equipment

fix the 4 self-adhesive pads to the base of the speaker.

They provide a degree of vibration isolation. The flat

area on top of the television may be smaller than the

base of the speaker, so position the feet accordingly.

Stray Magnetic Fields

The speaker drive units are magnetically shielded such

that the stray magnetic field strength outside the

boundaries of the cabinet, except the front, is too low

to cause distortion of CRT television pictures in the

vast majority of cases. LCD and plasma screens are

not affected by magnetic fields.

Ther

e are, however, some extremely sensitive CRT

televisions – some that even have to be adjusted

according to their alignment with the earth’s magnetic

field. If you have a pr

oblem, first de-magnetise the

television set with the speaker in place. Some have a

button especially for this purpose. If such feature is not

fitted, switch of

f the set at the mains for 15 minutes and

switch on again – again with the speaker in place. Merely

putting the set into standby mode will not be sufficient.

If you still have a problem, try moving the speaker

either forwards or backwards a little to get a more

favourable alignment, or space the speaker further

from the CRT television until the distortion disappears.

ecause of the higher magnetic field in front of the

speakers, magnetically sensitive articles (computer

iscs, audio and video tapes, swipe cards, etc) should

be kept at least 0.2m (8 in) from the speaker.

Connections

ll connections should be made with the equipment

switched off.

There are 2 linked pairs of terminals on the back of the

peaker. For conventional connection the terminal links

should remain in place (as delivered) and just one pair

of terminals connected to the amplifier. For bi-wire

onnection the terminal links should be removed and

ach pair of terminals connected to the amplifier

independently. Bi-wiring can improve the resolution of

low-frequency detail. Figures 1a and 1b illustrate

conventional and bi-wire connection.

Ensure that positive terminals on the speaker (marked

+ and coloured red) are connected to the positive

output terminal on the amplifier and that negative

terminals on the speaker (marked – and coloured

black) are connected to the negative output terminal

on the amplifier. Incorrect connection can result in

poor imaging and loss of bass.

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.

Fine Tuning

Before fine tuning, make sure that all the connections

in the installation are correct and secure.

For greatest realism in home theatre installations it is

important to balance the speakers and adjust the

acoustic image to match the size of the screen. With

smaller screens it may be more realistic to have the

left and right speakers closer together than you might

for audio alone.

Adjust the levels of the three front speakers to get a

smooth transition of sounds as they pan across the

screen. Adjust the level of the surround speakers so

that, except for special effects, your attention is not

unduly attracted to them. Listen from a variety of

probable listening positions when deciding on the

optimum levels.

Moving the speaker further from the wall will generally

reduce the volume of bass. Conversely, moving the

speaker closer to the walls will increase the volume of

bass. If you want to reduce the volume of bass

without moving the speaker further from the wall, fit

the foam plug in the port tube as illustrated in

Figure 2.

If the bass seems uneven with fr

equency this will most

probably be due to resonance modes in the listening

oom. Even small changes in the position of the

speakers or the listening position can have a pr

ofound

effect on how these resonances affect the sound. Try

moving the listening position a little backwar

ds or

forwards. The presence and position of large pieces of

furniture can also influence resonance modes.

HTM6x OM Inner Iss5.qxd 19/2/07 2:58 pm Page 2

Bowers Wilkins HTM61 Seite 5

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