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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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