B&W DS 3

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Contents 1 Description 2 Specifications 2.1 Technical features 2.2 Description 2.3 Drive units 2.4 Frequency range 2.5 Frequency response 2.6 Dispersion 2.7 Sensitivity 2.8 Harmonic distortion 2.9 Nominal impedance 2.10 Crossover frequency 2.11 Crossover frequency 2.12 Crossover Filters 2.13 Recommended amplifier power 2.14 Max. recommended cable impedance 2.15 Dimensions 2.16 Net weight 2.17 Finishes

[edit] Description

• Manufacturer: B&W

For large home theatre installations, choose a pair of rear speakers that can get you closer to the true surround sound of the cinema.

The DS3 is a wall-mounted surround speaker that can operate in what’s called ‘dipole’ mode, to create an authentic all-enveloping effect of the auditorium in a large space. Or, you may prefer to switch to conventional ‘monopole’ operation, in which the sound from side or rear is more precisely located and less diffuse. The choice depends on the room conditions, the size of the audience and the kind of material on view.

Whichever mode you select, the sound quality is superlative, supplied by a 130mm Kevlar cone bass/midrange, twin midrange/high frequency units and a Nautilus tube-loaded tweeter.

[edit] Specifications

[edit] Technical features

• Nautilus tube loaded aluminium dome tweeter
• Kevlar brand fibre cone bass/midrange

[edit] Description

• 2-way closed-box selectable dipole/monopole surround system

[edit] Drive units

• 1x ø25mm (1 in) aluminium dome high-frequency
• 2x ø80mm (3 in) midrange / high frequency
• 1x ø130mm (5 in) woven Kevlar cone bass / midrange

[edit] Frequency range

• -6dB at 63Hz and 42kHz (monopole mode)
• -6dB at 63Hz and 15kHz (dipole mode)

[edit] Frequency response

• 85Hz – 22kHz ±3dB on reference axis (monopole mode)
• 85Hz – 10kHz ±3dB power averaged over front hemisphere (dipole mode)

[edit] Dispersion

• Monopole mode: within 2dB of reference response
• Horizontal: over 40º arc
• Vertical: over 10º arc
• Dipole mode: horizontal figure of eight
• Effective null zone ±20º (250Hz – 15kHz)

[edit] Sensitivity

• 89dB spl (2.83V, 1m)

[edit] Harmonic distortion

• 2nd and 3rd harmonics (90dB, 1m)
• <1% 130Hz – 20kHz

[edit] Nominal impedance

• 8Ω (minimum 3.3Ω)

[edit] Crossover frequency

• 4kHz (monopole mode)

===Crossover Filters=== 1st Order – tweeter

• 1st Order – bass/midrange

[edit] Crossover frequency

• 250Hz (dipole mode)

[edit] Crossover Filters

• 2nd Order – midrange / high frequency
• 2nd Order – bass

[edit] Recommended amplifier power

• 25W – 100W into 8Ω on unclipped programme

[edit] Max. recommended cable impedance

• 0.1Ω

[edit] Dimensions

• Height: 249mm (9.8 in)
• Width: 380mm (15 in)
• Depth: 153mm (6 in)

[edit] Net weight

• 5.2kg (11.5 lb)

[edit] Finishes

• Black
• White