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Fostex 5.5” SHIELDED WOOFER
FT207D & FW137 Recommended 2-Way Bass Reflex Type Enclosure Plans
Tall Boy Design using (2x) FW137 Woofers and (4x) FF85K Full Range
Kenaf-Cellgaia Paper Cone
87 db sensitivity
Frequency response from 55 Hz to 8 kHz
Flange 155 mm
Cut-out 121 mm
Depth 77 mm
Aluminum diecast frame
Works well in 0.4 cubic foot ported box, F3 of 50Hz, 2"vent by 5.5"long.
Znom 8 ohm
Re 7.4 ohm
Le@1kHz 0.07 mH
fs 55 Hz
Qms 3.58
Qes 0.57
Qts 0.50
Mms 11.7 g
Cms 0.0008 mm/N
Sd 0.0095 m2
BL 7.06 N/A
Vas 10.2 ltrs
Xmax 1 mm peak
VC Ø 30.4 mm
Sensitivity
1W / 1m 87 dB
Nom. Power 75 W
Net weight 1.49 kg
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