Media

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Size
8"
Impedance
8Ω
RMS Power
500W
Sensitivity
97dB
EBP
234
Vented alignment
Vd
132cm³
Frequency response
Manufacturer-provided response plots and related charts.
Overall Parameters
Valid
Fs68Hz
Qts0.27
Qes0.29
Qms4.7
Vas17.0L
Re4.9Ω
Le0.90mH
BL12.6Tm
Sd220cm²
Mms22g
Xmax6.0mm
SPL97dB
Power500W
Power Nominal250W
Impedance8Ω
Min Impedance6.0Ω
Voice Coil51mm
Flux Density1.15T
Hybrid view: LF section is used for excursion/motor values, while frequency limits merge upper sections.
Pricing & availability
Price movement
Other offers
1 vendorbluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£231.02
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£218.34
Avg £224.68£6.34 below avg (-2.8%)
inc VAT
Driver Components
LFSpecifications LF unit
Fs68 Hz
Qts0.27
Qes0.29
Qms4.7
Vas17.0 L
Re4.9 Ω
Le0.90 mH
BL12.6 Tm
Sd220 cm²
Mms22 g
Xmax6.0 mm
SPL97 dB
Power500 W
Power Nominal250 W
Impedance8 Ω
Min Impedance6.0 Ω
Voice Coil51 mm
Flux Density1.15 T
HFSpecifications HF unit
Le0.11 mH
SPL104 dB
Power100 W
Power Nominal50 W
Impedance8 Ω
Min Impedance7.4 Ω
Xover1800 Hz
Voice Coil44 mm
Flux Density1.80 T
Additional Manufacturer Specs
Bl12.6 Tm
Fs68 Hz
Le0.9 mH
Re4.9 Ω
Sd220 cm² (34.1 in²)
Ebp234 Hz
Mms22 g
Qes0.29
Qms4.7
Qts0.27
Vas17 dm³ (0.6 ft³)
η01.8 %
Xvar6 mm
Winding Depth17 mm (0.67 in)
Former MaterialGlass Fibre
Nominal Diameter210 mm (8 in)
Winding MaterialAluminium
Magnetic Gap Depth8 mm (0.31 in)
Woofer Cone TreatmentWP Waterproof Front Side
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Reference
B&C
8CXN51
8"
Best current price
£218.34
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5 active T/S params, plus size.
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