D M 6 4 0 i

F l o o r - s t a n d i n g l o u d s p e a k e r s y s t e m

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.

Description

3-way 4th-order, variable port, bass

Frequency Response 46Hz – 20kHz ± 2dB on reference

 

reflex digital monitor system with bi-wiring

 

axis

Drive Units

1 x 26mm high frequency with metal

Sensitivity

91dB spl(2.83V 1m)

 

dome, high temperature voice coil and

Nominal Impedance

4 ohms

 

fluid cooling

Power Handling

30W – 200W into 4 ohms on

 

1 x 160mm midrange with rigid die-cast

 

undistorted speech and music

 

chassis, Kevlar® diaphragm and 31mm

 

programme

 

high-temperature voice coil on Kapton®

Dimensions

Height: 965mm Width: 236mm

 

former

 

Depth: 407mm

 

2 x 200mm bass/midrange with rigid

Finish

Black Zelda

 

die-cast chassis and 31 dia high-

 

 

 

temperature voice coil on Kapton®

 

 

 

former

 

 

 

 

 

 

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

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Bowers & Wilkins DM640i specifications 6 4 0, Technical highlights

DM640i specifications

The Bowers & Wilkins DM640i is a high-fidelity loudspeaker that exemplifies the brand’s commitment to quality sound reproduction and innovative design. Released as part of the iconic DM series, this model stands out for its excellent performance and sophisticated engineering.

One of the standout features of the DM640i is its dual drive unit configuration, which includes a 6-inch woofer and a 1-inch tweeter. The combination allows for a well-balanced sound that caters to various music genres, delivering rich, deep bass while ensuring clear and detailed high frequencies. This speaker design provides a full-range audio experience, making it suitable for both music enthusiasts and casual listeners alike.

The DM640i employs advanced technology in its speaker drivers. The woofer is designed using woven Kevlar, which helps minimize distortion and maximizes rigidity. This results in powerful bass response without compromising clarity. The tweeter, with its soft dome construction, contributes to an open and airy presentation in the high-frequency range, ensuring that vocals and instruments sound lifelike and engaging.

Another characteristic that makes the DM640i exceptional is its cabinet design. The speaker housing is constructed to reduce resonance and interference, allowing the drivers to perform at their best. This attention to detail in the cabinet design contributes to a clean, pure sound that accurately represents the original recording.

Bowers & Wilkins has also integrated a user-friendly design into the DM640i, making it compatible with a wide range of audio setups. The speaker is equipped with easily accessible binding posts that allow for straightforward connectivity to amplifiers or receivers.

In addition, the aesthetic appeal of the DM640i cannot be overlooked. Available in a variety of finishes, including natural wood and sleek black, it complements various interior styles while maintaining a professional look.

With a power handling capability that supports a wide range of amplifier outputs, the DM640i is versatile for both home theater systems and dedicated music setups. The combination of innovative technology, high-quality materials, and thoughtful design makes the Bowers & Wilkins DM640i a standout choice for anyone looking to elevate their listening experience. Whether used in a compact space or as part of a larger audio system, this speaker delivers performance that resonates with audiophiles and casual listeners alike.