Media
Auto-advancing
Size
8"
Impedance
8Ω
RMS Power
400W
Sensitivity
94dB
EBP
157
Vented alignment
Vd
143cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs69Hz
Qts0.41
Qes0.44
Qms5.6
Vas12.5L
Re5.1Ω
Le0.50mH
BL12.0Tm
Sd220cm²
Mms29g
Xmax6.5mm
SPL94dB
Power400W
Power Nominal200W
Impedance8Ω
Min Impedance6.3Ω
F Low70Hz
F High5000Hz
Voice Coil51mm
Flux Density1.15T
Pricing & availability
Price movement
Other offers
1 vendorjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£89.18
inc VAT
Best current price
Updated 17 May 2026
bluearan
£86.09
Avg £87.64£1.55 below avg (-1.8%)
inc VAT
Dimensions & Physical
Weight1.3kg
Diameter209.0mm
Overall Depth96.0mm
Cutout Diameter186.0mm
Bolt Circle Diameter199.0mm
Additional Manufacturer Specs
Bl12 Tm
Fs69 Hz
Le0.5 mH
Re5.1 Ω
Sd220 cm² (34.1 in²)
Ebp157 Hz
Mms29 g
Qes0.44
Qms5.6
Qts0.41
Vas12.5 dm³ (0.44 ft³)
η00.9 %
ConeRCK008CL518
Xmax6.5 mm
Xvar6 mm
SpiderSingle
Cone ShapeExponential
Pole DesignStraight Pole
Winding Depth17 mm (0.67 in)
Surround ShapeDouble Roll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter200 mm (8 in)
Winding MaterialCopper
Magnetic Gap Depth8 mm (0.31 in)
Recommended Tuning63 Hz
Bolt Circle Diameter199 mm (7.83 in)
Recommended Enclosure17 dm³ (0.6 ft³)
Woofer Cone TreatmentWP Waterproof Front Side
Baffle Cutout Diameter186 mm (7.32 in)
Flange And Gasket Thickness9 mm (0.35 in)
Air Volume Occupied By Driver1.1 dm³ (0.04 ft³)
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
B&C
8CL51
8"
Best current price
£86.09
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
Loading matches