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Discontinued Product

Bowers & Wilkins 600 Series Black Ash Floor Standing Speaker - 684BK

Abt Model: 684BK | UPC Code: 714346306145
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Product Details

Bowers & Wilkins 600 Series Black Ash Floor Standing Speaker, Model 684BK

Perfect when paired as a set of stereo speakers, or as the foundation of a multi-channel surround sound system, the Bowers & Wilkins 684 Floorstanding Speaker produces impressive, voluminous sound, ideal for medium to large-sized rooms.

The drive to always improve their products is what makes B&W speakers among the industry's best. For the 684 Floorstanders, B&W decided on a new combination of drivers, and the results are overwhelmingly positive. The lower, 6.5-inch woven Kevlar cone bass driver produces strictly low-end sounds, while above it sits a matching 6.5-inch midrange unit handling the more middling frequencies. This division of frequency range lets a single floor standing speaker produce both heavy bass and clear, undistorted mids. Of course, there's more to sound than just bass, so the B&W 684 is also outfitted with a 1-inch Nautilus tube loaded aluminum dome tweeter to take care of the high end. Working in unison, the drivers of this 2.5-way speaker reproduce a full range of sound, providing a satisfying listening experience even without the help of a subwoofer.

Because of their modular, matched nature, buying B&W speakers relieves you of having to decide on exactly what kind of audio setup you'd like to ultimately have. Start with a pair of the 684 Floorstanding Speakers and you'll have an enviable stereo system. Add an ASW610 Subwoofer for a 2.1 system, then a center channel and rear speakers for an engulfing 5.1 surround sound experience. As part of the B&W 600 Series, each speaker is matched not only sonically, but also aesthetically, in either a Red Cherry or Black Ash finish. So if budgetary or space restraints require you to buy your system a piece at a time, you can rest assured knowing that when complete, it will both look and sound like a cohesive, pro-caliber audio setup.

*Sold as single speakers.*


  • Woven Kevlar Yes
  • Crossover Tuning Yes
  • Nautilus Tapering Yes
  • Flowport Yes
  • Technical features
    • Nautilus™tube loaded aluminium dome tweeter
    • Kevlar® brand fibre cone bass/midrange
    • Kevlar® brand fibre cone bass driver
    • Flowport™
  • Description 2½ -way vented-box system
  • Drive Units
    • 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
  • Dispersion Within 2dB of reference response
    • Horizantal over 60º arc
    • Vertical 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 8Ω (minimum 3 Ω)
  • Crossover Frequencies 150Hz, 4kHz
  • Crossover Filters
    • 1st Order – tweeter
    • 1st Order – bass/midrange
    • 1st Order – bass
  • Recommended Amplifier Power 25W - 150W into 8Ω on unclipped programme
  • Max. Recommended Cable Impedance 0.1Ω
  • Finish Black Ash

Approximate Dimensions

  • Height: 35.8" (not including plinth or feet)
  • Width: 7.8"
  • Depth: 11.8"

Approximate Weight

  • Unit: 40.1 lbs
  • Shipping: 45 lbs
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Key Features
NautilusTube Loaded Aluminium Dome Tweeter/ Kevlar Brand Fibre Cone Bass/Midrange/ Flowport/ 2.5Way Vented-Box System/ -6dB At 34Hz And 50kHz Frequency Range/ 44Hz - 22kHz 3dB Frequency Response/ 8-Ohm Nominal Impedance/ Sold As Single Speakers/ Black Ash Finish
More reasons to buy the Bowers & Wilkins 684BK from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Bowers & Wilkins 684BK is Brand New.
  • The Bowers & Wilkins 684BK Ships in a Factory Sealed Box.
ConnectivityBinding Posts
Frequency Response44Hz - 22kHz (? 3dB)
Enclosure MaterialWood
Enclosure TypePorted (Bass Reflex)
Magnetic ShieldingNo
Midrange Size (inches)6.5
Sensitivity90dB spl (2.83V, 1m)
Speaker Design2.5-Way
Speaker TypeFloor Standing
Tweeter Size (inches)1
Woofer Size (inches)6.5
Height (inches)35.8
Width (inches)7.8
Depth (inches)11.8


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