Bowers & Wilkins ASW 2500: All applications FRANÇAIS

the relative positions of all the speakers in the

All applications

FRANÇAIS

installation.

If you get problems with lumpy bass – if certain

AVERTISSEMENTS:

Set the system up in the preferred position and

bass notes are exaggerated more than others –

ATTENTION: les versions 120V de ce produit

play some programme with a steady bass

then you probably have a room interface

sont livrées avec un cordon d’alimentation avec

content. The optimum setting for the LOW-PASS

problem and it is worth experimenting with the

connecteur polarisé. Pour éviter les chocs

FREQUENCY depends on several variables; the

placement of the subwoofer. What may seem

électriques, introduisez la lame la plus large de

bass performance and power handling of the

like small changes in position – 15cm (6in) or so

la fiche dans la borne correspondante de la

satellite speakers, the number of subwoofers

– can have a profound effect on the sound. Try

prise et poussez jusqu’au fond.

used and their position relative to the satellite

raising the subwoofer clear of the floor as well

speakers. The range 80 – 90Hz is a good

as lateral movement. The use of multiple

Pour éviter tout risque d’incendie ou

starting point for the LOW-PASS frequency.

subwoofers can smooth the effects of room

d’électrocution, n’exposez jamais cet appareil à

Unless two subwoofers are used to preserve

resonances, as each subwoofer will tend to

la pluie ou même a l’humidité.

separate right and left channel information and

excite resonances at different frequencies. If you

Observez tout signe anormal pouvant provenir

are sited close to the relevant satellite speakers,

alter the relative distances from the subwoofer(s)

du subwoofer lui-même.

using a higher cut-off frequency may compromise

and satellite speakers to the listeners

the stereo image and should only be considered

appreciably, reassess the phase switch setting.

N’ouvrez jamais l’enceinte et ne sortez pas

if the bass performance of the satellite speakers

You should also check the level setting of the

l’amplificateur de son logement ; vous n’y

is particularly limited.

subwoofer (using either the decoder output levels

trouverez aucun réglage utile. En cas de

or the volume control on the subwoofer amplifier

problème renseignez-vous, préalablement à toute

At each setting of the cut-off frequency, listen

as appropriate), but only after setting the phase

intervention, auprès d’un véritable revendeur

with the phase switch in both positions. The

correctly.

spécialiste de la marque B&W.

correct one is that which gives the fullest bass

and that will depend on the bass characteristics

Assurez-vous, en premier lieu, que la tension

of your satellite speakers and the relative

indiquée sur l’appareil correspond bien a celle

Taking care of the subwoofer

distances of the subwoofer(s) and the satellite

de votre réseau électrique.

speakers to the listeners. When using more than

The cabinet of the subwoofer may be cleaned

Les fusibles d’alimentation se trouvent sur le

one subwoofer, ensure that each one has its cut-

by dusting with a dry cloth. If you wish to use an

panneau du module d’amplification. En cas

off frequency and phase switch set the same

aerosol cleaning spray, do not spray directly on

de remplacement, n’utilisez jamais de fusibles

way.

the cabinet; spray onto the cloth. Remove the

d’un type différent ; vérifiez que les valeurs

grille first so that the cloth does not become

Set the loudness of the subwoofer relative to the

indiquées sur les nouveaux fusibles sont

stained, but be careful not to disturb the drive

satellite systems to your liking. Use a wide

parfaitement identiques à celles qui figurent sur

unit. The grille itself may be cleaned using a soft

variety of programme material to get an average

les modèles d’origine.

brush.

setting. One that sounds impressive on one piece

Cet appareil ne doit pas être raccordé à

may sound overpowering on another. Listen at

Do not use the subwoofer as a table. When in

la terre.

realistic levels as the perception of balance

use, objects left on top of the subwoofer are

varies with sound level.

liable to rattle. In particular, avoid the risk of

Assurez-vous que l’appareil est correctement

liquids being spilled (eg from drinks or vases of

aéré. N’empêchez-pas l’air de circuler autour de

Home theatre

flowers).

la plaque d’amplification située à l’arrière.

The situation with home theatre is somewhat

N’obstruez-pas les ouvertures du panneau.

If the system is taken out of use for a long

different from 2-channel audio. The subwoofer

N’encastrez-pas cette enceinte dans un rack, une

period, disconnect the subwoofer from the power

(LFE) signal is a separate channel rather than an

étagère, une niche ou un meuble si le volume

supply.

extension of the signal to the satellite speakers.

disponible à l’arrière ne peut être ventilé par l’air

The LOW-PASS filter is switched out, because the

ambiant.

decoder provides all the filtering for any

Contrôlez que les câbles ne risquent pas d’être

speakers set to “small”. However, the position of

transpercés par les pointes de découplage.

the phase switch must still be assessed. Normally

the phase will be set to 0˚, but if the subwoofer

Ne déplacez pas l’appareil en le faisant glisser

is positioned at a distance significantly different

sur ses pointes. Vous risquez de les arracher ou

from the other speakers, or the power amplifier

de créer des dégats.

driving the other speakers happens to invert the

Prenez simplement garde de ne pas vous piquer.

signal, the 180˚ position may be preferable.

Listen with the switch in both positions and

choose the one that gives the fullest sound. If

Introduction

there is little difference, leave the switch at 0˚.

Nous vous remercions d’avoir choisi l’enceinte

Decoders normally have a calibrated noise

active de subgrave B&W ASW™2500.

signal that can be used to set the relative levels

of all the speakers, making the task somewhat

Depuis la création de notre entreprise en 1966,

more straightforward than for 2-channel audio.

la base invariable de notre philosophie a toujours

However, do not be afraid to alter the settings to

été la recherche de la perfection absolue.

your personal preference. It is all too easy to get

Inspirée par son fondateur, le regretté John

carried away with the capabilities of the

Bowers, cette extraordinaire aventure qu’est la

subwoofer, especially with some special low-

quête de l’absolu, n’a pas seulement débouché

frequency effects. Often a more realistic

sur de très lourds investissements consacrés à la

portrayal, and one more satisfying in the long

recherche et à l’innovation, mais aussi sur une

term, is to be had by setting the subwoofer level

profonde connaissance de la musique et des

lower that the standard calibration level.

spécificités du son cinématographique. Cette

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