Frequency response of B&W 601S3's

Discussion in 'Archived Threads 2001-2004' started by Willem Vos, Mar 7, 2003.

  1. Willem Vos

    Willem Vos Stunt Coordinator

    Joined:
    Nov 14, 2000
    Messages:
    227
    Likes Received:
    0
    I was just wondering what the frequency response of these speakers is. The official specs say they go down to 60Hz (but at -3dB) (I think this is more like -15dB)

    I currently use them as fronts, and I suspect they're not holding up very well at 80Hz. Which is why I had to set my crossover to 100Hz to get (finally) get somewhat flat response.
    I wanted to set the crossover to 120, but above 100Hz the SVS' response gets lower and lower...

    Anybody else have these experiences?
     
  2. John F. Palacio

    John F. Palacio Supporting Actor

    Joined:
    Jan 6, 2002
    Messages:
    575
    Likes Received:
    0
    The low end frequency response of any speaker is very dependent on room placement. B&W rates their speakers conservatively so I can only guess their specs are accurate.

    In your room and with your placement, however, the results are apparently quite different.

    Make sure your mains are NOT out of phase with each other.
     
  3. Willem Vos

    Willem Vos Stunt Coordinator

    Joined:
    Nov 14, 2000
    Messages:
    227
    Likes Received:
    0
    Thanks for the info John.

    I'll try some sweeps with them set to large to check their response.

    Don't think they're out of phase though, all connections have been double checked.
     
  4. Willem Vos

    Willem Vos Stunt Coordinator

    Joined:
    Nov 14, 2000
    Messages:
    227
    Likes Received:
    0
    Checked the 601S3's (set as Large, volume at -40 below reference)

    100Hz - 69dB
    94 - 62
    84 - 60
    79 - 59
    75 - 60
    70 - 59
    66 - 59
    63 - 57

    seems like the specs are indeed pretty accurate.
    Must have been a phase problem with the sub, then.
    How can a phase problem be solved by changing the crossover from 80 to 100? Seems strange to me...
     

Share This Page