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Thread: So whats the difference between a 15 inch EV speaker and 15 inch sub?

  1. 02-05-2007, 01:00 PM #1
    mikeym
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    So whats the difference between a 15 inch EV speaker and 15 inch sub?

    the frequencies i'm sure. I answered my own question.

    I have a 15 inch EV force speaker thats in a piano cab, 160watts rms, rated at 8 ohms, would it sound like crap put in a sub box and hooked up to me amp?





    looks pretty bomb proof...
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  2. 02-05-2007, 01:06 PM #2
    mikeym
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    hurtz range is supposed to be:

    45Hz to 6kHz
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  3. 02-05-2007, 01:08 PM #3
    pwntbypat
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    What are the t/s specs on it, or the model number?
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  4. 02-05-2007, 01:21 PM #4
    mikeym
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    well i actually have a knockoff EV, its in a Kaman keyboard amp, its most likely very close in specs...

    SPECIFICATIONS

    Nominal Basket Diameter 15"
    Impedance 8 ohms
    Power Rating (EIA RS-426A) 150 Watts
    Frequency Response 45Hz - 6kHz
    Sensitivity (1W/1m) 100dB SPL
    Voice Coil Diameter 2.5" / 63.5mm
    MOUNTING INFORMATION

    Overall Diameter 15.1" / 384 mm
    Bolt Circle Diameter 14.6" / 371 mm
    Baffle Cutout Diameter 13.9" / 353 mm
    No. Of Mounting Holes 8
    Overall Depth 6.4" / 163 mm
    Magnetic Assembly Weight 10.0lbs / 4.54kg.
    Net Weight 12.8 lbs. / 5.8 kg
    MATERIALS

    Basket Cast Aluminum
    Magnet Ferrite
    THIELE-SMALL PARAMETERS

    Resonant Frequency (fs) 40 Hz
    Impedance (Re) 5.2 ohms
    Total Q (Qts) .51
    Compliance Equivalent Vol. (Vas) 297.4 liters / 10.5 cu.ft.
    Voice Coil Overhang (Xmax) 3.3mm
    Surface Area of Cone (Sd) .08553 m2
    Efficiency No. % 3.3%
    Diaphragm Displacement Vol. (Vd) 855.3 cm2
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  5. 02-06-2007, 12:08 AM #5
    mikeym
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    any ideas?
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  6. 02-06-2007, 12:22 AM #6
    XC-C30
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    phooooh..... the speakers isn't likely to handle much excursion, and since the lowest frequencies produce much excursion I don't think it is a good idea using this speaker as a sub. Other thing is efficiency..... 3.3% meh???? That is really low, never seen anything like it even. And one last thing: the FS is 40Hz,which is pretty high, considering you normally double the FS on your tuning-frequency. In this case that would be 80Hz..... At the x-over point the sound of the speaker will be easily located and that's something you don't want in a sub. Last issue: We let most subs play from 50Hz or less..... That's not gonna happen, so you're letting it handle a too wide frequency-range.


    Conclusion? you can not use this speaker as a sub.
    Xenia & Isabelle, totally in love!

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  7. 02-06-2007, 12:59 PM #7
    mikeym
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    thank you sir! question answered!
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