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New BFD with Dual Velodynes

Discussion in 'Subwoofers' started by BassThatHz, Oct 17, 2004.

  1. BassThatHz

    BassThatHz
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    After moving to a new house and discovering that the room acoustics were quite disappointing :mad: , I thought I would give a BFD a try. So I purchased one off eBay to EQ my two Velodyne subs. :thumbsup:

    I tried many various placements during the shipping period and was beginning to loose all hope :rolleyes: then… bam there it was…the right place. This being my first attempt at EQ'ing with a BFD I thought I would post my freq-resp to see if the more exprienced EQ'ers (or the like) had any thoughts to my results, good or bad. ;)

    I ended up using 12 of the 24 filters (6 per sub/channel), 1 @ -15 to reduce SPL below the lowest rated freq, 2 to tame the peaks and the final 3 to reduce upper harmonics and stress on the crossovers -13 @ 500hz, -24 @ 1khz, -48 @ 5khz.

    IMHO this is the best results i've had with these dual subs in over 2 years.

    (I'm new to this forum...so i hope that this attachment thing works properly!)
    [​IMG]
     

    Attached Files:

  2. Ian J

    Ian J
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    I think that a lot of people would have been fairly happy with a curve like your "before" as we have seen a lot worse on here. The pink line looks as flat as you can get it without using a ruler and although you have said that it is the best result that you have managed I assume that you are happy with the sound too.
     
  3. recruit

    recruit
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    As long as it sounds good to you then that is the most important thing and you do seem happy with the results. :smashin:

    John :)
     
  4. Sniper

    Sniper
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    line looks fine - but you did lose something in the 20-25 Hz range (especially in the 20Hz mark)
     
  5. BassThatHz

    BassThatHz
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    Yes, it was only pure luck that I stumbled on the correct room placement before the BFD arrived. I did notice the -1 dip at 25hz, probably just a small phase issues of the two drivers or a flaw is the RS meter. The steep -15db roll-off at 20hz was done on purpose and I couldn't be happier with the results (not like its an SVS/DD-12/etc).
     

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