Media
Auto-advancing
Size
8"
Impedance
8Ω
RMS Power
500W
Sensitivity
92dB
EBP
124
Vented alignment
Vd
143cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs52Hz
Qts0.40
Qes0.42
Qms12.3
Vas18.0L
Re5.1Ω
Le0.50mH
BL11.8Tm
Sd220cm²
Mms35g
Xmax6.5mm
SPL92dB
Power500W
Power Nominal250W
Impedance8Ω
Min Impedance6.0Ω
F Low50Hz
F High4000Hz
Voice Coil51mm
Flux Density1.15T
Pricing & availability
Price movement
Other offers
3 vendorsjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£106.28
inc VAT
thomann
Updated 21 Apr 2026· 8Ω
Source: inc VAT · 20%
£110.00
inc VAT
thomann
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£113.00
inc VAT
Best current price
Updated 17 May 2026
bluearan
£105.26
Avg £108.64£3.38 below avg (-3.1%)
inc VAT
Dimensions & Physical
Weight1.9kg
Diameter225.0mm
Overall Depth90.0mm
Cutout Diameter187.0mm
Bolt Circle Diameter210.0mm
Additional Manufacturer Specs
Bl11.8 Tm
Fs52 Hz
Le0.5 mH
Re5.1 Ω
Sd220 cm² (34.1 in²)
Ebp124 Hz
Mms35 g
Qes0.42
Qms12.3
Qts0.4
Vas18 dm³ (0.63 ft³)
η00.6 %
ConeRCK008BG518
Xmax6.5 mm
Xvar8 mm
SpiderSingle
Cone ShapeExponential
Pole DesignT-Pole
Winding Depth17 mm (0.65 in)
Surround ShapeRoll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter200 mm (8 in)
Winding MaterialCopper
Magnetic Gap Depth8 mm (0.31 in)
Recommended Tuning49 Hz
Bolt Circle Diameter210 mm (8.3 in)
Recommended Enclosure19 dm³ (0.67 ft³)
Woofer Cone TreatmentWP Waterproof Front Side
Baffle Cutout Diameter187 mm (7.4 in)
Flange And Gasket Thickness11 mm (0.43 in)
Air Volume Occupied By Driver1.1 dm³ (0.04 ft³)
Similar Drivers
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Reference
B&C
8BG51
8"
Best current price
£105.26
Compare on
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5 active T/S params, plus size.
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