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Vifa Logic Line BC18SG49-08 7" Coated Paper Cone Woofer
Decorative Polymer Frame.
Coated paper cone with NRSC cone (non resonant suspension coupling).
Shielded magnet for use near a CRT.
25.4mm = 1"
Flange diameter: 180mm
Cut out diameter: 147mm
Depth: 79.2mm
Nominal impedance: 8 ohm
DC resistance: 5.7 ohm
Nominal Power: 30 W
Sensitivity: 87 dB
Resonance frequency: 46.9 Hz
Voice coil diameter: 25mm
Linear excursion (xmax peak): 3.9mm
Le: 0.82mH
Sd: 138 cm2
Mms: 10g
Bl: 5.0
Vas: 31 liters
Qms: 2.68
Qes: 0.67
Qts: 0.54
See pdf file for curve.
Suggested box:
Sealed box of 14 liters (0.5cf)(864 inch3)
3dB down at about 65Hz
Loose fill
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