Fane Sovereign Pro 8BM Fane Sovereign Pro 8BM
TFane Sovereign Pro 8BM TFane Sovereign Pro 8BM


Bass / Mid Driver

Data Sheet
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  • For use in small compact sound systems, or infill applications with compact cabinet dimensions.
  • Rubber roll surround.
  • Excellent low frequency response and balance of bass and midrange.
  • Suitable for home cinema applications.

The Sovereign Pro 8BM is intended for use in two-way ported enclosures. The driver combined with Fane compression driver and horn offers excellent tonal character throughout its active bandwidth. The unit features a die-cast chassis with long throw motor system and high linearity suspension allowing solid bass reproduction at high-power levels. The specially formulated cone pulp allows this driver to give a warm and smooth response throughout the working band. The Pro 8BM is designed for use in 15 to 25 Litre ported enclosures and features a 2 inch voice coil, 250 Watt power handling and 93.5 dB sensitivity.


  • Please enquire about alternative impedances.
  • A.E.S. power handling test. Pink noise bandpass filtered at 12 dB per octave with cutoff frequencies of 50 Hz and 500 Hz. Driver mounted in free air, test signal applied at rated power for two hours.
  • Please note that the frequency response measurements are supplied for comparison only and are not a measure of the low frequency performance which may be achieved in a fully optimised system.
Electro Acoustic Specifications
Nominal Chassis Diameter 8" / 203.2 mm
Impedance 8 Ω
Power Handling 250 W (A.E.S.)
Peak Power (6dB Crest Factor) 1000 W (A.E.S.)
Usable Frequency Range (-6dB) 50Hz - 4.5 Hz
Sensitivity (1W - 1m) Wideband 93.5 dB
Moving Mass (inc. Air Load) 28 grams
Minimum Impedance (Zmin) 7.44 Ω
Effective Piston Diameter 6.7" / 170.18 mm
Magnet Weight 37 oz
Magnetic Gap Depth 0.24" / 6 mm
Flux Density 1 Tesla
Coil Winding Height 0.51" / 13 mm
Voice Coil Diameter 2.0" / 50.8 mm
Speaker Type Bass / Mid Driver
Speaker Series The Professional Series
Program Power 500 W (A.E.S.)
Sensitivity (1W / 1m) Working band
Thiele Small Parameters (TSPs)
FS 52 Hz
Re 6.2 Ω
QMS 49.98
QES 0.314
QTS 0.312
Vas 23.5 Litres
Vd 0.102 Litres
CMS 0.335 mm/N
BL 13.44 T/m
MMS 28.6 grams
Xmax 4.5 mm
Sd 227 cm2
Efficiency 1.05%
Le 0.597 mH
EBP 165.61 Hz
Materials of Construction
Coil Former Material Glass Fibre
Voice Coil Material Copper
Magnet Material Ferrite
Chassis Material Die-cast Aluminium
Cone Material Paper
Surround / Edge Termination Rubber Roll
Dust Dome Material Paper
Connectors Push-button Spring Terminals
Polarity Positive voltage at red terminal causes forward motion of cone
Mounting / Shipping Information
Overall Diameter 8.9 " / 226 mm
Width Across Flats 8.25 " / 210 mm
Flange Height 0.28" / 7 mm
Baffle Hole Diameter F/M 7.33" / 186 mm
Baffle Hole Diameter R/M N/A
Gasket Supplied Front & Rear
Outer Fixing Holes 4x ø 5.5 mm on 214 mm PCD
Inner Fixing Holes Not Applicable
Depth 3.56" / 90.3 mm
Weight 6.5 lb / 2.95 Kg
Recommended Enclosure Volume 8 - 23 Litres
Shipping Weight 7 lb / 3.18 Kg
Packing Carton Dimensions (W) 235 (D) 235 (H) 130 mm
DescriptionSizeFormatGet File
Fane Sovereign Pro 8BM Datasheet0.50Mb.pdfDOWNLOAD
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