bw dm 309 Fiche De Données

DM309

Maple

Black Ash

Nautilus™ tweeter
Flowport

⁄

-way vented-box system

1x ø26mm (1 in) alloy dome high-frequency
1x ø160mm (6 in) woven fibreglass cone bass/midrange
1x ø160mm (6 in) woven fibreglass cone bass

-6dB at 40Hz and 42kHz

60Hz - 22kHz ±3dB on reference axis

Within 2dB of reference response
Horizontal:

over 40º arc

Vertical:

over 10º arc

88dB spl (2.83V, 1m)

2nd and 3rd harmonics (90dB, 1m)
<1% 90Hz - 20kHz

(minimum 3.0

)

150Hz, 4kHz
25W - 120W into 8

on unclipped programme

0.1

Height:

910mm (35.8in)

Width:

201mm (7.9in)

Depth:

305mm (12in)

19.5 kg (42.9 lb)

Cabinet: Maple vinyl

Black Ash vinyl

Grille:

Black cloth

Two cabinet finishes are
available for DM309

The Nautilus

tube-loaded

tweeter ensures far greater
absorption of unwanted
radiation away from the
rear of the diaphragm.

Flowport is B&W’s familiar dimpled

design that reduces turbulence noise

to negligible levels.

It is located at the back on DM303,

DM309 and LCR3, and at the bottom

on ASW300.

Please refer to our website for complete specification details on individual products.

Nautilus is a trademark of B&W Loudspeakers Ltd.

to amend details of the specifications without notice in line with technical developments.

B&W Loudspeakers Ltd.,

Dale Road

Worthing West Sussex

BN11 2BH, England.

T +44 (0) 1903 221500

F +44 (0) 1903 221501

info@bwspeakers.com

www.bwspeakers.com

Technical features

Description

Drive units

Frequency range

Frequency response

Dispersion

Sensitivity

Harmonic distortion

Nominal impedance

Crossover frequency
Recommended amplifier power

Max. recommended cable impedance

Dimensions

Net weight

Finishes