Media
Auto-advancing
Size
8"
Impedance
8Ω
RMS Power
500W
Sensitivity
97dB
EBP
216
Vented alignment
Vd
125cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs67Hz
Qts0.28
Qes0.31
Qms3.1
Vas20.7L
Re4.7Ω
Le0.48mH
BL11.3Tm
Sd227cm²
Mms20g
Xmax5.5mm
SPL97dB
Power500W
Power Nominal250W
Impedance8Ω
Min Impedance5.5Ω
F Low67Hz
F High4500Hz
Voice Coil51mm
Flux Density1.19T
Pricing & availability
Price movement
Other offers
1 vendorjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£91.90
inc VAT
Best current price
Updated 17 May 2026
bluearan
£80.08
Avg £85.99£5.91 below avg (-6.9%)
inc VAT
Dimensions & Physical
Weight3.4kg
Diameter225.0mm
Overall Depth92.0mm
Cutout Diameter187.0mm
Bolt Circle Diameter210.0mm
Additional Manufacturer Specs
Bl11.3 Tm
Fs67 Hz
Le0.48 mH
Re4.7 Ω
Sd227 cm² (35.19 in²)
Ebp216 Hz
Mms20.2 g
Qes0.31
Qms3.07
Qts0.28
Vas20.7 dm³ (0.73 ft³)
η01.91 %
ConeRCK008FMB518
Xmax5.5 mm
Xvar5 mm
SpiderSingle
Cone ShapeCurvilinear
Pole DesignT-Pole
Winding Depth15 mm (0.59 in)
Surround ShapeTriple Roll
Former MaterialGlass Fibre
Magnet MaterialFerrite
Nominal Diameter200 mm (8 in)
Winding MaterialAluminium
Magnetic Gap Depth8 mm (0.31 in)
Recommended Tuning80 Hz
Bolt Circle Diameter210 mm (8.27 in)
Recommended Enclosure14 dm³ (0.49 ft³)
Woofer Cone TreatmentWaterproof Impregnated Cone
Baffle Cutout Diameter187 mm (7.36 in)
Flange And Gasket Thickness9 mm (0.35 in)
Air Volume Occupied By Driver1.2 dm³ (0.04 ft³)
Similar Drivers
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Reference
B&C
8FMB51
8"
Best current price
£80.08
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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