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B-w-684.33417582
8.5 out of 10

B&W 684

The extended bass response and output capacity of the 2½-way 684 Read more

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Specifications

Feature
Value
Comment
Woven Kevlar
Yes
Crossover Tuning
Yes
Nautilus Tapering Tube
Yes
Flowport
Yes
Technical features
Nautilus™ tube loaded aluminium dome tweeter
Description
2½ -way vented-box system
Drive units
1x ø25mm (1 in) aluminium dome high-frequency
Frequency range
-6dB at 34Hz and 50kHz
Frequency response
44Hz - 22kHz ±3dB on reference axis
Dispersion
Within 2dB of reference response
Sensitivity
90dB spl (2.83V, 1m)
Harmonic distortion
2nd and 3rd harmonics (90dB, 1m)
Nominal impedance
8Ω (minimum 3.0Ω)
Crossover frequencies
150Hz, 4kHz
Crossover Filters
1st Order – tweeter
Recommended amplifier power
25W - 150W into 8Ω on unclipped programme
Max. recommended cable impedance
0.1Ω
Dimensions
Height: 910mm/35.8" (not including plinth or feet)
Net weight
18.2kg (40.1lb)
Finishes
Black Ash Vinyl
Release Date
First seen
15 October 2007