New Imac - 1 firewire port

Discussion in 'Digital Audio' started by andy5000, Mar 3, 2009.

  1. andy5000 macrumors regular

    Joined:
    Sep 17, 2006
    #1
    Hi,
    I have a macbook pro 2.16ghz, so its getting to become a bit slow.
    I have been waiting to upgrade since november, but wanted the latest revision.
    My concern is i have a focusrite saffire 26i/o and 2 lacie d2s. i like the lacies running off firewire 800 which is why i bought a express card for my mbp.
    Will 1 firewire 800 be able to cope with the bandwidth of 2 hard drives and the focusrite?or will i have to go for the mac pro:S.
    The main use of the machine is web design but i also do a fair chunk of audio stuff in logic, including recording 16 channels simultaneously.
    Thanks for the help\
    Andrew
     
  2. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #2
    It should be able to handle it, FW was meant to daisy-chain, remember.
     
  3. andy5000 thread starter macrumors regular

    Joined:
    Sep 17, 2006
    #3
    yeh i understand its meant to but when i tried it on my mbp it kept dropping out, and when it was happening to my hard drives i wasnt to chuffed but having said that was when i tried it with the built in fw400. are you using a similar setup?
     
  4. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #4
    I have two 1.5TB drives daisy-chained through FW800 in my office, the only slowdown I see is when I have to wake the drives from their sleep mode.
     
  5. ChrisA macrumors G4

    Joined:
    Jan 5, 2006
    Location:
    Redondo Beach, California
    #5
    Let's see... FW800 is 800,000,000 bits per second or 100 megabytes per second.

    Audio at 96K and 24-bits is about 1.5 megabytes per second. My guess is that you are right at the breaking point and could justify a Mac Pro. Those bits go on the FW800 bus twice. Once from the audio interface to the computerthan back out on the FW800 bus to the disk. 32 times for 16 channels. This uses about 1/2 the total bandwidth of the fw800. I don't like to see 50% usage on day one. Not much "headroom" left

    But then if you record at 44.1K that would make a huge difference.

    But do you also have a 24 track audio interface running on the same FW800 bus? With office wrk you would never notice a millisecond but with audio you do notice every dropout
     
  6. r.j.s Moderator emeritus

    r.j.s

    Joined:
    Mar 7, 2007
    Location:
    Texas
    #6
    No, but since he only uses 16 channels, it should still be fine.
     
  7. andy5000 thread starter macrumors regular

    Joined:
    Sep 17, 2006
  8. Bo Bo Hanks macrumors newbie

    Joined:
    Feb 9, 2010
    #8
    ! Firewire port

    I agree with your concern. I just bought the new one FW 800 macbook pro, and thought maybe Mac knew something I did not, but so far no one has hooked a Firewire Audio interface with a firewire external hard drive with success . I had a g4 macbook pro ,and never had a problem with my firewire 400, and 800 ports! I can run both my music programs on the hard drives play, and record on the audio, and NEVER have a problem. I have tried on my new macbook pro dasiy chain. then a hub with my audio, and hard drive, and I loose my audio. This is not a good thing when you are trying to make music. I have not even got to recording! It has been 4 months of trying diffrent ways. I am convinced it can not be done. Some say go ubs, but if any one knows anything about usb audio it is not up to par with the firewire audio. Why would you get a new mac to go backwards with your creativity!

    It looks like the answer will be getting a mac pro tower!
     
  9. Jaro65 macrumors 68040

    Jaro65

    Joined:
    Mar 27, 2009
    Location:
    Seattle, WA
    #9
    Ditto! I have a similar WD Studio setup and it's been working great.
     
  10. Bo Bo Hanks macrumors newbie

    Joined:
    Feb 9, 2010
    #10
    Have you hooked up a firewire sound card with your hard drives? I have a M Audio 410.
     
  11. Bo Bo Hanks macrumors newbie

    Joined:
    Feb 9, 2010
    #11
    Chris A Have you ever fixed your firewire problem?
     

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