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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: NO posted by RCA-fan on February 8, 2007 at 07:20:33:
jut remembered that my samples (and others have found this too )of SP15A had 2 ohms series resistor hidden behind a frame spoke - so SP15A withou9t the resistor was almost like a 4 ohm 15L having Qts ~0.18what makes this more stange - IIRC (?), Ev published SP15A with vas=9.9CF, fs=45 and qts = 0.45 giving a 15CF box via Keele's calculator method
SP15A with 2 ohm 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 @1kHzSp15A resistor bypassed with alligator lead
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
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Follow Ups
- Re: NO - - SP15A - some had 2 ohm series R - were they 4ohm 15L variant? - freddyi 08:09:27 02/08/07 (0)
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