Bowers & Wilkins 600 Series Loudspeakers Preview

Discussion in 'Loudspeakers' started by admin, Feb 19, 2014.

  1. admin Audioholics Robot Staff Member

    admin
    Joined:
    Apr 16, 2004
    Messages:
    172
    Likes Received:
    1,615
    Bowers & Wilkins is at it again with a refresh of their bread and butter 600 series of loudspeakers. The new lineup naturally offers several technical advancements over their predecessors, as well as a slimmed down appearance to improve spousal acceptance. With prices ranging from $1,650/pair to $550/pair, B&W is hoping the improved aesthetics and sonic qualities will draw buyers in a hotly contested market. Keep on reading to see what the new line brings to the table.
    [​IMG]

    Discuss "Bowers & Wilkins 600 Series Loudspeakers Preview" here. Read the article.
  2. defmoot Audioholic

    defmoot
    Joined:
    Jul 31, 2011
    Messages:
    144
    Likes Received:
    110
    Location:
    Arizona, USA
    Testing...

    Bad link?
  3. AcuDefTechGuy Audioholic Slumlord

    AcuDefTechGuy
    Joined:
    Jul 10, 2007
    Messages:
    19,582
    Likes Received:
    4,305
    Location:
    Oklahoma City
    Maybe they can make these "cheaper" speakers with flat frequency responses and smooth off-axis responses to compete with the likes of the Infinity, Pioneer, NHT, Aperion, etc. :D

    They already have $25K speakers that have curvy FR and rough off-axis.

    They need to change it up a little. :D
  4. defmoot Audioholic

    defmoot
    Joined:
    Jul 31, 2011
    Messages:
    144
    Likes Received:
    110
    Location:
    Arizona, USA
    Link wasn't active. It's good now. Thanks.
  5. road_tripper Audiophyte

    road_tripper
    Joined:
    Feb 19, 2014
    Messages:
    2
    Likes Received:
    0
    Frequency response

    The 684, with dual 5" mid/woofers, goes down to only 72 Hz; but the 686, with a single 5" driver and a much smaller cabinet, goes down to 62 Hz? Does this sound right?

    I've posted this on other forums as well, but am yet to receive a response. Please correct me if I'm thinking incorrectly.
  6. zieglj01 Audioholic Spartan

    zieglj01
    Joined:
    Aug 30, 2010
    Messages:
    5,174
    Likes Received:
    1,581
    Location:
    Texas
  7. Steve81 Audioholics 5-O

    Steve81
    Joined:
    Aug 9, 2012
    Messages:
    4,026
    Likes Received:
    2,060
    Location:
    38.89°N, 77.01°W
  8. Steve81 Audioholics 5-O

    Steve81
    Joined:
    Aug 9, 2012
    Messages:
    4,026
    Likes Received:
    2,060
    Location:
    38.89°N, 77.01°W
    It can happen depending on how the enclosure is tuned. I'd also note that the 684 still has the lower -6dB point (30Hz vs 54Hz).
    • Like Like x 1
  9. Swerd Audioholic Ninja

    Swerd
    Joined:
    Sep 3, 2004
    Messages:
    4,431
    Likes Received:
    2,749
    Location:
    Gaithersburg, MD
    As they presented those specs, it is confusing.

    684 dual 5" drivers in a floor standing cabinet
    Frequency range -6 dB at 30 Hz and at 50 kHz
    Frequency 72 Hz – 22 kHz ±3 dB on reference axis
    Sensitivity 87 dB

    686 single 5" driver in stand mount cabinet
    Frequency range -6 dB at 54 Hz and at 50 kHz
    Frequency 62 Hz – 22 kHz ±3 dB on reference axis
    Sensitivity (84) 85 dB

    The 684 is more sensitive, and should sound like it produces more bass than the 686. Both are likely to be bass shy without a subwoofer.

    This would be much simpler to understand if they provided a frequency vs. loudness graph.

    A much bigger potential problem is their use of a 4 kHz crossover point between the kevlar mid woofers and the tweeter. In previous B&W 600 series models this has been known to cause audible problems of harshness in the lower treble range and listener fatigue, depending on the musical material. I don't know if these new models deal with that successfully.
    • Like Like x 1
  10. zieglj01 Audioholic Spartan

    zieglj01
    Joined:
    Aug 30, 2010
    Messages:
    5,174
    Likes Received:
    1,581
    Location:
    Texas
    The new models do not look that optimistic
    Last edited: Feb 20, 2014
  11. Swerd Audioholic Ninja

    Swerd
    Joined:
    Sep 3, 2004
    Messages:
    4,431
    Likes Received:
    2,749
    Location:
    Gaithersburg, MD
    I really couldn't say for sure without hearing them, or seeing a frequency response curve done by a reliable 3rd party.

    There are plenty of other speakers in that same price range, and quite a few of them are known to sound good.
  12. road_tripper Audiophyte

    road_tripper
    Joined:
    Feb 19, 2014
    Messages:
    2
    Likes Received:
    0
    Frequency response

    OK, I had no idea. Thanks :p
  13. Patrick Butler Audioholic Intern

    Patrick Butler
    Joined:
    Oct 25, 2010
    Messages:
    44
    Likes Received:
    22
    Location:
    Massachusetts
    Anti-Resonance Plug

    One of the things that changes in the #new 600 series is the addition of an Anti-Resonance Plug, first developed for the PM1. The Anti-Resonance Plug deals with the tendency for the voice coil to go out of round (adding distortion) at the top of the operating range for the midrange/midbass drivers in the new 600 series. This raises the breakup point of the driver and results in more pistonic behavior with less distortion. You can read more about the Anti-Resonance Plug here: Bowers & Wilkins - Anti-Resonance plug

    Regards,

    Patrick Butler
    B&W Group North America
  14. Morgan Audio Junior Audioholic

    Morgan Audio
    Joined:
    May 31, 2016
    Messages:
    98
    Likes Received:
    16
    I have some of the 684's in my bedroom and their pretty good. They do start to bother my ears after about an hour or so but that's kind of a normal listening I think, so shouldn't be a problem. Some of the high's are not to impressive, seem a little constrained or like covered by a light sheet and the bass is just slightly weak for what you would expect. Like all though, it's just one persons opinion.

Share This Page

  • EMPTek.com
  • BlueJeansCable.com
  • SVS Sound Subwoofers
  • Experience the Martin Logan Montis
  • CEDIA