Carlspeak Posted August 29, 2011 Report Share Posted August 29, 2011 Boston Acoustics type (fillited) foams were used. Values below are avg. of two separate woofer tests following fresh refoam with no breakin.Fs=16.8 hzQts=.025Le=0.78 mHVas=7.5 Cu. FtMms=70 gramsSens.=87 dBBL=9.25Although smaller in size (frame OD 10") the properties above resemble those of the AR3 series 11" woofer. The Cizek woofer even had a foam ring around the cone's surface about 2 inches up from the dust cap. Quote Link to comment Share on other sites More sharing options...
Shacky Posted September 3, 2011 Report Share Posted September 3, 2011 Nice Carl. Were these from mine? Quote Link to comment Share on other sites More sharing options...
Carlspeak Posted September 3, 2011 Author Report Share Posted September 3, 2011 Nice Carl. Were these from mine?Yes! Quote Link to comment Share on other sites More sharing options...
giovanni56 Posted February 22, 2021 Report Share Posted February 22, 2021 On 29/8/2011 at 21:59, Carlspeak said: Sono state utilizzate schiume tipo Boston Acoustics (riempite). I valori seguenti sono medi. di due test separati del woofer a seguito di una nuova schiuma senza rotture. Fs = 16,8 Hz Qts = 0,025 Le = 0,78 mH Vas = 7,5 Cu. Ft Mms = 70 grammi Sens. = 87 dB BL = 9,25 Sebbene di dimensioni inferiori (diametro esterno del telaio 10 "), le proprietà sopra ricordano quelle del woofer da 11" della serie AR3. Il woofer Cizek aveva persino un anello di schiuma attorno alla superficie del cono a circa 2 pollici dal tappo antipolvere. Qts 0,025 ???? Quote Link to comment Share on other sites More sharing options...
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