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B & W 704 Speakers

B & W 704 Speakers

Floor-standing speakers, with their extra bass power, are generally more suited to larger rooms, although this does not preclude their use in smaller ones. The 704 is the smaller of the two floor-standers in the Series and is a 2-way system. Where bass frequencies are produced by both cone drivers operating in parallel. To maintain a better vertical dispersion of sound, the lower driver is progressively attenuated above 150Hz to leave the upper Kevlar® cone driver operating alone through the midrange.

Mounting the tweeter in its own housing on top of the cabinet maintains a more even dispersion for better stability imaging, even when sitting away from the centre line between the speakers. The ability to time align the tweeter with the bass/midrange driver also improves system integration.

Like the larger 703 and smaller 705, the 704 is designed to give the best impression of depth in the sound stage when positioned clear of surrounding walls and is balanced to suit. However, for those users who may have to position their speakers closer to the walls, the unnatural increase in bass level that follows can be offset by plugging the ports with foam plugs supplied with the speakers.
B & W 704 Speaker

705 Specifications

Features  Woven Kevlar   
Crossover Tuning   
Nautilus Tapering Tube   
Flowport   
Mushrooms       
Tweeter on Top
Technical Features
Free-mounted Nautilus™ tweeter
Kevlar® brand fibre cone bass/midrange
Paper/Kevlar® cone bass
Flowport™
Description
2½-way vented-box system
Drive units
1x ø165mm (6.5 in) Paper/Kevlar® cone bass
    1x ø165mm (6.5 in) woven Kevlar® cone bass/midrange
    1x ø25mm (1 in) alloy dome high-frequency
Frequency range
-6dB at 30Hz and 50kHz
Frequency response
40Hz – 25kHz ±3dB on reference axis
Dispersion
Within 2dB of reference response
Horizontal:    over 40º arc
Vertical:    over 10º arc
Sensitivity
90dB spl (2.83V, 1m)
Harmonic Distortion
2nd and 3rd harmonics (90dB, 1m)
    <1% 55Hz – 20kHz
    <0.5% 60Hz – 20kHz
Nominal Impedance
8Ω (minimum 4.1Ω)
Crossover frequency
150Hz, 4kHz
Recommended Amplifier Power
50W – 150W into 8Ω on unclipped programme
Dimensions
Height:    957mm (37.7 in)
Width:    222mm (8.7 in)
Depth:    319mm (12.6 in)
Net weight
21 kg (46 lb)

 


Brand: B & W Speakers

 

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