9 reviews

B&W 684

$550.00 Released March, 2007

Product Shot 1 The Pros:Quality build. Good performance for the price. Wood finish.

The Cons:Require a good amp or powerful receiver. Works best at high volumes.

The B&W 684 is the smaller of two floorstanding main speakers in Bowers & Wilkins (B&W) affordable high-end 600 series of home audio speakers.  These speakers are ideal for a hi-fi or home cinema system in a medium to large sized room.

There is a pair of 6.5" woven Kevlar cones; the lower of the two is dedicated to bass frequencies which frees the upper bass/midrange cone to handle the midrange frequencies with a crisper and clearer response that you might expect from a smaller cone. Also, the incorporated fixed centre bullet helps smooth the response into upper frequencies. There is a 1" aluminum dome tweeter located above the two kevlar cones, which handles the high frequencies.  The tweeter is contained in a Nautilus tapering tube, which is designed to only project sound through a hollow pole magnet frontwards, and is tapered towards the rear to eliminate reflections off the rear of the cabinet producing unwanted sound effects. The B&W 684 is avaialable in four vinyl finishes: black ash, light oak (not available in USA/Canada), red cherry and wengé; and comes with a removable black cloth grill. The B&W 684 is $550 per speaker, and is also sold as the main front L/R speakers in the B&W 684 home theatre system.


  • Crossover Tuning 
  • Nautilus tube loaded aluminium dome tweeter
  • Flowport
  • 2½ -way vented-box system
  • 1x ø25mm (1 in) aluminium dome high-frequency
  • 1x ø165mm (6.5 in) woven Kevlar cone bass/mid
  • 1x ø165mm (6.5 in) woven Kevlar cone bass
  • Frequency range: -6dB at 34Hz and 50kHz
  • Frequency response: 44Hz - 22kHz ±3dB on reference axis
  • Horizontal Dispersion Within 2dB of reference response: over 60º arc
  • Vertical Dispersion Within 2dB of reference response: over 10º arc
  • Sensitivity: 90dB spl (2.83V, 1m)
  • Harmonic distortion: 2nd and 3rd harmonics (90dB, 1m) ( <1% 90Hz - 22kHz , <0.5% 120Hz - 20kHz)
  • Nominal impedance: 8 Ohms (minimum 3.0 Ohms)
  • Crossover frequencies: 150Hz, 4kHz
  • Crossover Filters: 1st Order – tweeter , 1st Order – bass/midrange , 1st Order – bass
  • Recommended amplifier power: 25W - 150W into 8 Ohms on unclipped programme
  • Max. recommended cable impedance: 0.1 Ohms
  • Height: 910mm/35.8" (not including plinth or feet)
  • Width: 198mm/7.8
  • Depth: 300mm/11.8
  • Net weight: 18.2kg (40.1lb)
  • Finishes (vinyl): Black Ash, Light Oak (not available in US/Canada), Red Cherry, Wengé Vinyl
  • Removable black cloth grill

User Reviews (14)

Add Pros & Cons
  • 3

    Quality build

  • 3

    Good performance for the price

  • 2

    Wood finish

  • 2

    Variety of finish colours

  • 2

    Extended bass response

  • 3

    Require a good amp or powerful receiver

  • 1

    Works best at high volumes

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