Instrukcja obsługi Bowers & Wilkins CDM 7SE

Bowers & Wilkins głośnik CDM 7SE

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Bowers & Wilkins CDM 7SE (39 stron) w kategorii głośnik. Ta instrukcja była pomocna dla 8 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

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Strona 1/39

O W N E R ’ S M A N U A L

CDM™7SE

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

CDM™7SE Owner’s manual

English ..........................................1

Deutsch.........................................2

Nederlands..................................3

Italiano .........................................4

Español.........................................6

Português......................................7

Français........................................8

......................................... 10

"esk≥ ......................................... 11

Ελληνικ ................................. 12

Polski ..........................................13

усск ....................................14

Magyar...................................... 16

>0.5m

>1.5m

≈ ≈

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Introduction

Thank you for purchasing B&W CDM™7SE

speakers.

Since its foundation in 1966, the continuing

philosophy of B&W has been the quest for

perfect sound reproduction. Inspired by the

company’s founder, the late John Bowers, this

quest has entailed not only high investment in

audio technology and innovation but also an

abiding appreciation of music to ensure that the

technology is put to maximum effect.

It is also our policy to make sure the advanced

features pioneered on one product are

incorporated into others we manufacture.

CDM™systems have cabinets with contoured

edges to reduce sound diffraction (the re-

radiation of sound waves from sharp edges that

interfere with and blur the direct sound from the

drive units),incorporating woven Kevlar®cone

bass/midrange drive units for lowest coloration

and maximum definition. They also have alloy

dome tweeters with magnetic fluid cooling to

ensure good definition to the limits of audibility

and maintain dynamics to high sound levels.

Additionally, the tweeter is free space mounted

to improve the spaciousness of the stereo image.

All these features were originally developed for

the acclaimed B&W800 Series systems and go

towards the realisation of fine transducers.

However, no matter how good the speakers

themselves, they must work well into the listening

room and time spent on the installation process

will reap the reward of many hours listening

pleasure. Please read through this manual fully.

It will help you optimise the performance of your

audio system.

B&W distribute to over 50 countries world-wide

and maintain a network of dedicated distributors

who will be able to help should you have any

problems your dealer cannot resolve.

Unpacking (figure 1)

• Fold the top carton flaps right back and invert

the carton and contents.

•Lift the carton clear of the contents.

•Remove the inner packing from the product.

•4 spike feet and 4 lock nuts are taped in

recesses in one polystyrene end tray.

• Please retain the packaging for future use.

CDM™7SE speakers are supplied in veneer

matched pairs. Check that your speakers have

consecutive serial numbers.

Connections (figures 2 & 3)

All connections should be made with the

equipment turned off.

There are two pairs of gold plated terminals at

the back of each speaker, one pair to the bass-

mid units and one pair to the tweeter which

permit bi-wiring or bi-amplification if desired.

On delivery, both pairs are connected together

by high-quality gold plated copper links for use

with a single twin cable.

The terminals accept bare wires.

For single cable connection, connect either of

the positive terminals on the speaker (marked +

and coloured red) to the positive terminal on the

power amplifier and negative (–,black) to

negative (figure 2). Failure to observe correct

polarity will result in poor sound balance and

image focusing.

When bi-wiring the speakers, loosen the terminal

caps and remove the links. Use a separate twin

cable from the amplifier terminals to each pair of

speaker terminals (figure 3). Correct polarity

connection is even more critical in this case to

maintain the frequency response of each speaker

as well as the correct balance between left and

right speakers. The use of separate cables can

improve the reproduction of low-level detail by

reducing interaction in the crossover and

allowing optimum choice of cable for each

frequency range.

Always make sure all the terminal caps are

screwed down tight, as otherwise they may

rattle.

When choosing cable, keep the total electrical

impedance (out and back) below the maximum

recommended in the specification. In particular,

the cable to the tweeter should have low

inductance, otherwise the very high frequencies

will be attenuated. Ask your dealer for advice,

as the optimum cable will depend on the length

required.

Positioning (figure 4)

Some experimentation with the position of the

speakers is well worthwhile to optimise the

interaction between them and the listening room.

However, as an initial guide:

• Do not fit the spike feet until you have found

the best position for the speakers.

• Place the speakers and the centre of the

listening area approximately at the corners

of an equilateral triangle.

• Keep the speakers at least 1.5m (5ft) apart to

maintain left-right stereo separation.

•Keep the speaker baffles at least 0.5m (20in)

clear of walls. Having the speakers too close

to walls increases the level of bass relative to

the midrange and may give a boomy quality

to the sound.

WARNING: The CDM™7SE produces a static

magnetic field that extends outside the cabinet

boundary. As such the CDM™7SE should not be

placed within 0.5m (20in) of equipment that

may be affected by such a field, e.g. Cathode

Ray Tubes in TVs and Personal Computers.

Fine tuning

Before fine tuning the installation, double check

the polarity and security of the connections.

If the level of bass is uneven with frequency, this

is usually due to strong excitation of resonance

modes in the room.

Even small changes in the position of the

speakers within the listening room can have a

profound effect on the perceived sound quality

by altering the excitation of these modes.

Try mounting the speakers along a different wall.

Even moving large pieces of furniture about can

have an effect.

If the general level of bass is too high, try

moving the speakers further away from the walls.

Conversely, if you need more bass, move the

speakers closer to the walls. Space behind the

speakers also improves the impression of

perspective on well recorded material.

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 listening area

(figure 5).

If the sound is too harsh, increase the amount

of soft furnishing in the room. For example, use

heavier curtains. Conversely reduce the amount

of soft furnishing if the sound is dull and lifeless.

Test for flutter echoes by clapping your hands

and listening for rapid repetitions. These can

smear the sound, but may be reduced by

irregular shaped surfaces such as bookshelves

and large pieces of furniture.

Ensure the speakers stand firmly on the floor.

Whenever possible fit the spike feet supplied

after you have optimised the positioning. These

are designed to pierce through carpeting to the

floor surface. Initially, screw the lock nuts fully

onto the spikes and screw the spikes fully into

the threaded inserts in the base of the cabinet.

If the cabinet rocks, unscrew the two spikes that

do not touch the floor equally until the cabinet

sits firmly on the floor, and lock them in place

by tightening the lock nuts against the cabinet.

If there is no carpet and you wish to avoid

scratching the floor surface, use a protective

disc between the spike and the floor.

Aftercare

The veneers normally only require dusting. If you

wish to use an aerosol cleaner, remove the grille

first by gently pulling it away from the cabinet.

Spray onto the cleaning cloth, not directly onto

the cabinet. The grille fabric may be cleaned

with a normal clothes brush after removing the

grille from the cabinet.

Avoid touching the drive units, especially the

tweeter, as damage may result.

Specyfikacje produktu

Marka:	Bowers & Wilkins
Kategoria:	głośnik
Model:	CDM 7SE

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