Bowers & Wilkins 4000 User Manual

Page 42

Description

Drive units

System frequency response

Low-Pass Filter

High-Pass Filter

Internal Volume

Dimensions

Net Weight

Finish

ASW

™

4000

THX is a registered trademark of Lucasfilm Ltd. B&W Loudspeakers Ltd.

reserves the right to amend details of the specification without notice in line with technical developments.

B&W Loudspeakers Ltd, Meadow Road, Worthing, BN11 2RX Tel: +44 (0) 1903 524801 Fax: +44 (0) 1903 524725

http://www.bwspeakers.com

Active vented-box subwoofer

One 380mm (15 in) dia long throw with magnetic shielding

±3dB 17Hz - 40 / 140Hz adjustable (Line In)
±3dB 17Hz - 250Hz (Decoder In, EQ at ‘B’)
±3dB 24Hz - 250Hz (Decoder In, EQ at ‘A’)

Amplifier

Power output

450W continuous

Input impedance

22kW

Sensitivity

88dB spl at 1m for 100mV input

(Decoder input, level set to centre detent position)

Signal/Noise

90dB

Functions

Line input level
Decoder input level
Decoder input equalisation
Phase 0/180

Inputs

Line In (RCA Phono)
Decoder In (RCA Phono)
Speaker Level In (Binding Posts)

Outputs

Line Out (RCA Phono, h-p filtered)
Link Out (RCA Phono)
Speaker Level Out (Binding Posts, h-p filtered)

Active 4th-order

variable cut-off 40Hz - 140Hz (Line In)
fixed cut-off 250Hz

Line Level

active 3rd-order at 80Hz

Speaker Level

passive 1st-order at 80Hz into 8W resistor
(Response using speaker level connections
dependent on satellite impedance)

100 litres (3.6 cu ft)

Height:

580mm (22.8 in)

Width:

610mm (24 in)

Depth:

580mm (22.8 in))

75kg (165 lb)

Cabinet: Real wood veneers of Black Ash,

Cherrywood and Red Stained Cherrywood

Grille:

Black cloth

I4840