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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: RE: EV 15TRX Best Use posted by sdoow on July 20, 2007 at 16:43:20:
those specs are 70's SP15A from EV's literature and my example (and IIRC Gary's) had very low qts which was raised somewhat with a 2ohm resistor under a frame spoke.
vas in those published specs was 9.9 cubic feet or ~280.368 liters
I've measured my SP15A ---- at any rate its not your driver and these specs are bogus for some SP15A and probably not applicable to earlier SP15 or SP15B type
get someone to measure your drivers then you'll have an idea of what might work.
SP15A with "heatsink"
Q - 2 ohm resistor bypassed - look EV used essentially a 4ohm driver
Revc= 2.7835 ohms
Fs = 35.7778 Hz
Zmax= 94.0246 ohms
Ro = 16.1778 ohms
F0 = 22.5473 Hz
F1 = 56.4867 Hz
Fmin= 285.3875 Hz
Qms = 6.1268
Qes = 0.1869
Qts = 0.1814
Le = 0.4041 mH @1kHz
XLe = 5.9168 impedance @1kHz
PLe = 25.4102 phase @1kHz
Q - resistor in place
Revc= 4.6731 ohms
Fs = 35.8275 Hz
Zmax= 95.6706 ohms
Ro = 21.1441 ohms
F0 = 24.8760 Hz
F1 = 51.6394 Hz
Fmin= 285.7841 Hz
Qms = 6.0571
Qes = 0.3111
Qts = 0.2959
Le = 0.4136 mH @1kHz
XLe = 7.6839 impedance @1kHz
PLe = 19.7693 phase @1kHz
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Follow Ups
- RE: EV 15TRX Best Use = bogus spec for some SP15A - freddyi 18:04:54 07/20/07 (0)
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