Bowers & Wilkins DM640i Manual, Specification Sheet

Manual, Specification Sheet for Bowers & Wilkins DM640i Speakers, Speaker System (1 pages)

Specifications:

54/54396-dm640i.pdf file (23 Nov 2023)
  • Manufacturer: Bowers & Wilkins
  • Category of Device: Speakers, Speaker System
  • Document: DM640i, File Type: PDF Specification Sheet
  • Updated: 23-11-2023
  • Count of Pages: 1
Download DM640i Manual (1 pages)

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Data: UPD 23rd November 2023

Bowers & Wilkins DM640i Speakers, Speaker System PDF Specification Sheet (Updated: Thursday 23rd of November 2023 12:57:57 AM)

Rating: 4.5 (rated by 44 users)

Compatible devices: Active1, DS6 S3, DM320, DM110i, CDS6, CM2, HTM61, CDM7.

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Text Version of Bowers & Wilkins DM640i Speakers, Speaker System Manual (Summary of Contents)

(Ocr-Read of Document's Main Page, UPD: 23 November 2023)


DM640i
Floor-standing loudspeaker system
Product Summary
●
Designed with the more demanding digital sources of the nineties in mind, the 600 series has
earned a reputation for minimal coloration and musical accuracy in audio reproduction.
Successfully capturing the transients found in music meant developing a loudspeaker able to
do justice to the attack of the original audio signal.  
Designed by a master of industrial design Dr Kenneth Grange, the cool, dark lines of the
600 series cabinet are perfect partner for contemporary furniture and interior design settings.
●
The profound low frequency response is achieved by the use of heavier Cobex cones in the
two 8in bass drivers, delivering a lower fundamental resonant frequency. The midrange unit is
a separate, acoustically isolated Kevlar driver mounted in its own sub enclosure.
●
This has been enhanced in the DM640 by taking the Silver Signature Kevlar cone profile,
and introducing a new rubber surround, making it identical in every respect to the Kevlar
driver in the much acclaimed B&W Matrix 805.
●
The crossover has been revised to accommodate the changed response of the new midrange
drive unit.
Technical highlights
●
B&W's Tweeter technology ensures that the sound remains focused and time sensitive and
that the stereo image is presented with unparalleled three dimensional accuracy.   
●
The strict acoustic requirements of the cabinet have dictated a front baffle moulding of extra
high rigidity. The polymer has been chosen for its composition and ability to reduce unwanted
resonances to a minimum.
B&W Loudspeakers Ltd reserves the right to amend details of the specifications without notice in line with technical developments. E & OE. All trademarks acknowledged.
www.bwspeakers.com
Description
Drive Units
3-way 4th-order, variable port, bass
reflex digital monitor system with bi-wiring
1 x 26mm high frequency with metal
dome, high temperature voice coil and
fluid cooling
1 x 160mm midrange with rigid die-cast
chassis, Kevlar® diaphragm and 31mm
high-temperature voice coil on Kapton®
former
2 x 200mm bass/midrange with rigid
die-cast chassis and 31 dia high-
temperature voice coil on Kapton®
former
Frequency Response
Sensitivity
Nominal Impedance
Power Handling
Dimensions
Finish
46Hz – 20kHz ± 2dB on reference
axis
91dB spl(2.83V 1m)
4 ohms 
30W – 200W into 4 ohms on
undistorted speech and music
programme
Height: 965mm  Width: 236mm  
Depth: 407mm
Black Zelda





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