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  • build a sub with this?

    I've got a Silver Flute W20RC38-08 8" Could I build a relatively small subwoofer with this for low to moderate levels of music?

    Specifications:

    Re 7.3 Ohms
    Sensitivity 91 dB
    Power 100 watts
    Fs 30.8 Hz
    Qms 1.30
    Qes 0.28
    Qts 0.23
    Vas 83.3 Ltrs
    Mms 20.9 g
    Cms 1281.1 mM/N
    Sd 0.0214 M2
    BL 10.1 TM
    X-max 5 mm
    Le @ 1kHz 0.92 mH

    Krm 1.65 mW
    Kxm 32.793 mH
    Erm 0.853
    Exm 0.591

    thanks

  • #2
    That driver does not like to play very low. I have modeled it hoping to use it in a 3-way, but was not happy with the results. It didn't model well below mid 40's. Now as a disclaimer, I modeled it with factory specs, but have not measured one myself. The 6.5's model better in the low end than the 8's.

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    • invaderzim
      invaderzim commented
      Editing a comment
      bummer, thanks for the reply.

  • #3
    The low Q suggests that you might be able to get down to 30 Hz or so with a higher order design like a 6th order bandpass or even tapped horn. Another option is an Extended Bass Shelf alignment. But before going there, you should really measure the t/s parameters first.

    Brian Steele
    www.diysubwoofers.org

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    • #4
      1.2 vented cu.ft. using a 3"id x 7" long port tube should do better than 50Hz @ over 100dB.
      Not really "sub" territory, but it should certainly be able to play the bottom octave of your average "rock" music to fill in for some bass-limited desktop speakers.

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