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7th May 2008, 05:29 PM
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diyAudio Member
Join Date: Nov 2003
Location: Brighton UK
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http://www.top-sound.it/doc/prodotto...oofer-30A1.pdf
Fs 37.4 Hz Vas 52.97 I Qts 0.42 Qes 0.45 Qms 6.37 Re 3.2 ohms Sd 510.71 cm2 Cas 3.77E-07 m5/N Mas 48.02 kg/m4 Ras 1771.39 ohms.ac Cms 1.45E-04 m/N Mms 125.24 g Rms 4.62 kg/s Ces 598.43 mF Les 30.26 mH Res 45.3 ohms BI 14.47 N/A SPL 89.73 dB/W/m Hi, for 45L vent tuning at 50Hz is far too high, 30Hz to 33Hz IMO,  /sreten.
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My DIY Subwoofer -Focal 30a1
The bass i bad meening good. I can`t stand next to him 
