Bowers And Wilkins DB4S Manual de Usario

Bowers And Wilkins Altavoz de subgraves DB4S

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DB Series

Subwoofers

ENGLISH

bowers-wilkins.com

Welcome to Bowers & Wilkins and the DB Series subwoofers.

Thank you for choosing Bowers & Wilkins. When John Bowers

rst established our company he did so in the belief 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 it inspires every

product we design.

Before connecting and operating this mains powered apparatus,

please read carefully and observe the Important Safety Instructions

in the accompanying leaet.

This manual covers all DB Series subwoofers.

ENGLISH

1. Carton Contents

1. DB Series subwoofer

2. Power cable(s)

3. Speaker grilles

4. Spike, decoupling and rubber feet

5. Literature pack

2. Introduction

Your DB Series subwoofer is an extremely high

performance product that will reward thoughtful

installation. We suggest that you take some time to

read this manual before you begin.

DB Series subwoofers can be used for low frequency

applications in both conventional stereo and home

theatre systems. They incorporate a comprehensive

set of features that enhance versatility and enable

performance to be nely tuned to the listening

room, listening position and programme material.

These features are briey described in the following

paragraphs:

Set Up and Control

DB Series subwoofers can be set up and controlled

only via the Bluetooth connected Bowers & Wilkins

DB Subwoofers app for iOS and Android devices.

Before you begin installing your subwoofer, please

download and install the DB Subwoofers app on

your iOS or Android device. It is not possible to set

up or use a DB Series subwoofer without the app.

Note: The DB Subwoofers app requires iOS

version 10 and Android version 5 or later.

Bluetooth must be switched on in the iOS or

Android settings.

Room Equalisation

DB Series subwoofers can automatically

optimise their performance to match the acoustic

characteristics of the listening environment.

Multiple Inputs

DB Series subwoofers provide RCA Phono and

balanced XLR stereo analogue inputs. The inputs

can be connected simultaneously and congured

independently for different system applications.

Level Adjustment

DB Series subwoofers incorporate both level

adjustment and trim adjustment. The trim adjustment

enables optimum matching of different source output

levels so that the subwoofer volume level matches

that of the main speakers for all inputs.

Low Pass Filter Set up

DB Series subwoofers provide low pass lter

options for stereo congurations for both RCA

and XLR connections. When using mono (LFE)

connections the bass management functions of the

source equipment should be employed. For stereo

installations the low pass lter characteristics can

be matched to either specic Bowers & Wilkins

main speakers or to alternative manufacturer's main

speaker specications.

Input EQ

DB Series subwoofers provide optional equalisation

presets designed to suit music and movie

programme material. Custom equalisation via a ve

band equaliser is also provided.

Diagram 1a

DB4S positioning in a stereo (2.1) system

Diagram 1b

DB1D, DB2D and DB3D positioning in a home theatre

(5.1) system

3. Installing your Subwoofer

3.1 Before You Begin

Please follow the unpacking instructions printed on

the outer carton.

Your DB Series subwoofer is heavy and should be

unpacked by two people working together close to

its nal installed position.

Note: Due to the dual driver design of the

DB1D, DB2D, and DB3D subwoofers we

do not recommend that they are suitable for

installation within custom built furniture. If

furniture installation is necessary, multiple DB4S

subwoofers are likely to offer a more satisfactory

solution. In any case, built-in furniture must be

structurally adequate to support the weight of the

subwoofer or subwoofers and provide at least

20cm (8 inches) clearance around the subwoofer

sides, back, and top.

3.2 Positioning

DB Series subwoofers are more versatile than most

subwoofers in terms of positioning thanks to their

Room EQ optimisation system that can compensate

for less than ideal positioning.

Best results however will be obtained if your DB

Series subwoofer is placed between the left and

right speakers or in the vicinity of one of them.

Placing a subwoofer to the side, but still to the

front of the listeners is an acceptable compromise

if domestic considerations dictate, however the

subwoofer should not be located behind the

listening position.

If two subwoofers are to be used it is best to

position one near the left speaker and one near

the right speaker. Diagrams 1a and 1b illustrates

subwoofer positioning.

Note: DB1D, DB2D and DB3D models should be

orientated with their twin drivers facing sideways.

The DB4S should be orientated with its single

driver facing outwards into the room.

Note: Using two subwoofers in a single

installation can improve performance by

maintaining stereo separation to the lowest

frequencies, averaging the effects of low

frequency room resonances and enabling a

higher maximum volume level. In the case of

two subwoofers used in a conventional stereo

system, stereo separation will only be improved

if each subwoofer is located close to the

appropriate main speaker.

Note: Like all speakers, the proximity of room

boundaries affects the sound of a subwoofer.

Bass volume increases as more boundaries

come into proximity. The more boost gained from

the room, the lower the volume can be set and

the less hard the subwoofer has to work.

Once you have positioned your subwoofer, its

performance can be optimised using the Room EQ

function. This is described in Section 4.

Especificaciones del producto

Marca:	Bowers And Wilkins
Categoría:	Altavoz de subgraves
Modelo:	DB4S
Color del producto:	Zwart
Peso.:	11700 g
Ancho:	432 mm
Profundidad:	335 mm
Altura:	77 mm
Indicadores LED:	Ja
Tecnología de conectividad:	Bedraad
Cables suministrados:	AC
Canales de salida de audio:	4.0 kanalen
Relación señal-ruido:	- dB
Distorsión Armónica Total (THD):	- procent
Consumo de energía (típico):	125 W
Potencia máxima por canal:	60 W