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Bfd

Discussion in 'Subwoofers' started by Steve N, Oct 17, 2005.

  1. Steve N

    Steve N
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    It seems I need one of these for sub only.
    There seems to be several different types available.
    Can someone recommend me one that will do the job but not need a degree in astro-physics to use :)
     
  2. Mr Incredible

    Mr Incredible
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    Smurfin is about to sell his. Drop him a note.
     
  3. Steve N

    Steve N
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    Already have :thumbsup:
     
  4. eviljohn2

    eviljohn2
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    BFD DSP1124
    Is most likely the best choice for you. It has 24-bit DACs and is currently end-of-line so try to snap one up for a bargain price soon if you want.

    DSP1120
    Is the oldest model with 20-bit DACs. It will still do exactly what you want.

    I'm not sure about the name of the latest variant (not BFD IIRC) and some of the Ultracurve models also have a parametric EQ function. :)
     
  5. Ian J

    Ian J
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    Do you know that you need one or are you just guessing as most of us get by without one.
     
  6. Steve N

    Steve N
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    Guessing/hoping.

    My Rel Stadium III sounds very rumbly and you feel the noise/air against your ears ,whereas when I had Thunders SVS demoed to me this did not happen, you felt the sound in your seat/legs and the sound seemed crisp/sharp rather than woolley and muffled.
    Probably not the proper language, but I hope you know what I mean.
    It was Thunder who suggested a BFD might help.

    I know SVS are highly thought of, but my Stadium should perform better than this and I'm getting desparate now I've heard what is possible.
     
  7. recruit

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    For what the BFD costs, it is a worthy investment and even if the notches created are only minor it can still smooth out the response to get the best out of any sub. ;)
     
  8. eviljohn2

    eviljohn2
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    It's possible to get by without a subwoofer and AV equipment altogether. :)
     
  9. mickey

    mickey
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    :eek: suppose you,ll be telling us it,s possible to do without sex next :D ;) . mike
     
  10. IronGiant

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    Mike: I think that was irony :)

    1) Do a signal sweep first and if you hear dips/peaks you may have a problem

    2) borrow or buy an SPL meter, or use a mike and some of the software recommended here through a PC and check whether your house is creating the problem

    3) then consider a BFD

    There are lots of things you can try to see what is causing boominess before buying a BFD, not that I wouldn't recommend buying one, I have one.

    dave
     
  11. Steve N

    Steve N
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    Boominess - thats the word that sums it up.
    I have sound level meter - is an SPL something different. And how do you do a signal sweep.

    I suppose what I really need is someone knowledgeable who lives near me to come and help me out.
    Any volunteers - I'll be happy to make it worth someones while (within reason) :)
     
  12. l34052

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    You'll have to excuse my ignorance on the matter but what the hell is a BFD???? :)
     
  13. Mr Incredible

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  14. AngelEyes

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    Steve,

    I went down this route and although it has improved things for me (a lot) you may find as Ian suggests you don't need to. Once you get the hang of using an SPL Meter (Sound Pressure Level) to do frequency sweeps and plot the graphs you may find moving the sub a few inches / feet might fix 90% of your problems.

    Buying a BFD can be like opening a can of worms IMHO. Although relatively easy to use they can become an obsession, forever fiddling and tweaking just because you might not be getting 100% from your system.

    I am glad i bought one because if you are unsure of what you should be getting from your sustem it will only cost £60ish plus cables to find out for sure. To me this is only a little money to spend for at the very least, peace of mind, and at the very best a significant improvement to your system (although a lot of time spent getting there).

    I would take it one step at a time and only get a BFD if you have no other option :)
     
  15. Steve N

    Steve N
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    AngelEyes,
    Thanks for the advice :thumbsup:
     
  16. karkus30

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    :D I think it depends how keen you are on fiddling. I set my system up in one room and spent weeks with a sweep tone CD, meter, tripod and BFD instruction book :suicide: eventually settling on something reasonable.

    About 6 months ago I moved it all into a purpose made room and although I know I should get down to the fiddling and tweaking I cant for the life of me remember how to set up the BFD. I really cant stand the hours of torture, I would honestly pay someone to set the system up. Any takers ?
     
  17. bob1

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    NO:D
     
  18. eviljohn2

    eviljohn2
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    Do you mean Darlington in Devon? It's quite a trek but I'd like to browse your music collection so if you could make it worth my while... :)
     
  19. IronGiant

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  20. Steve N

    Steve N
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    Thanks mate.
    On the other hand - bloody hell, I think I'm going to plead for someone who knows what they are doing, to volunteer to come over and help me - for a fee of course :)
     
  21. recruit

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    If you can't be bothered with a BFD, wait for the Velodyne SMS-1 which should be out soon and it will be alot easier to setup... :)
     
  22. Sonnie Parker

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    Come on guys... the BFD is easy... just use the GUIDE! It doesn't get much easier.

    Okay, I'll admit, it can be a little intimidating initially for some people, but once you get into it, it becomes easier and fun.

    There's not many who won't need a BFD.
     
  23. AngelEyes

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    When I first read the guide I thought I would never get it but as soon as you try you can pick it up straight away. :)

    I was not trying to suggest it was a badly written guide :rotfl:
     
  24. Steve N

    Steve N
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    But can you actually hear an obvious improvement when you have set it up with a BFD.
    Or is just a confidence thing - you know - ah it must be good now cos I've got a nice curve
     
  25. AngelEyes

    AngelEyes
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    It depends how bad your current curve is.

    A trough at the low end of the frequency and a peak at the high end may mean you have to turn up the gain so loud to hear a decent impact from a low end explosion that the higher end bass gets really muddy and boomy.

    I noticed quite a difference and I am tone deaf :D
     
  26. eviljohn2

    eviljohn2
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    You would have to be very unlucky not to notice a huge and marked improvement.

    It's not like a small upgrade, the changes you make are equally valid to a cheap or expensive sub and will make equally substantial improvements. :)
     
  27. Steve N

    Steve N
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    Could be the answer I am looking for - I'm certainly experiencing the "muddy and boomy"
     
  28. Sonnie Parker

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    Steve N... I think you got your answer... get the BFD... you won't be sorry. The thing to do would be grab yourself an analog meter, record some test tones (available from the GUIDE), take measurements and graph them with the Excel Workbook (also available from the GUIDE). If you've got muddy and boomy, you should see your problem right away and the BFD will fix it.

    I've read many a post from some supposedly serious critical listeners who claim it made a difference in their response. There's no doubt it made a difference in mine and I'm not that critical. Having said this... I wouldn't doubt if there are some out there that have purchased a BFD and did not notice a difference for whatever reasons. There are always those few.

    AngelEyes... no offense taken whatsoever... I hope you didn't think that I thought you were suggesting the GUIDE was badly written (although I'm sure someone else could have done better than I). I was referring to the intimidation of the BFD itself, for some that is. As you say... once you give a try, it's really not that bad. Of course the GUIDE is always there to help ease the pain, if you can get past the pain of having to read it... lol.
     
  29. karkus30

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    Opposite end of the country. Didnt know there was a Darlington in Devon.

    Record collection is still growing by the week. Im really keen to start getting rid of some of the less listened to albums..............goodbye Mr Adams.
     
  30. Ian J

    Ian J
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    It's where Darlington Glass used to be made :rotfl:
     

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