Media
Auto-advancing
Size
8"
Impedance
8Ω
RMS Power
400W
Sensitivity
94dB
EBP
190
Vented alignment
Vd
121cm³
Frequency response
Manufacturer-provided response plots and related charts.
Overall Parameters
Valid
Fs74Hz
Qts0.36
Qes0.39
Qms4.1
Vas15.0L
Re5.2Ω
Le1.20mH
BL11.5Tm
Sd220cm²
Mms21g
Xmax5.5mm
SPL94dB
Power400W
Power Nominal200W
Impedance8Ω
Min Impedance6.1Ω
Voice Coil52mm
Flux Density1.10T
Hybrid view: LF section is used for excursion/motor values, while frequency limits merge upper sections.
Pricing & availability
Price movement
Other offers
3 vendorsbluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£139.06
inc VAT
jpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£147.49
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£151.51
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£136.39
Avg £143.61£7.22 below avg (-5.0%)
inc VAT
Driver Components
LFSpecifications LF unit
Fs74 Hz
Qts0.36
Qes0.39
Qms4.1
Vas15.0 L
Re5.2 Ω
Le1.20 mH
BL11.5 Tm
Sd220 cm²
Mms21 g
Xmax5.5 mm
SPL94 dB
Power400 W
Power Nominal200 W
Impedance8 Ω
Min Impedance6.1 Ω
Voice Coil52 mm
Flux Density1.10 T
HFSpecifications HF unit
Le0.14 mH
SPL101 dB
Power50 W
Power Nominal25 W
Impedance8 Ω
Min Impedance7.2 Ω
Xover2200 Hz
Voice Coil36 mm
Flux Density1.45 T
Additional Manufacturer Specs
Bl11.5 Tm
Fs74 Hz
Le1.2 mH
Re5.2 Ω
Sd220 cm² (34.1 in²)
Ebp190 Hz
Mms21 g
Qes0.39
Qms4.1
Qts0.36
Vas15 dm³ (0.55 ft³)
η01.5 %
Xvar5.5 mm
Winding Depth16 mm (0.63 in)
Former MaterialKapton
Nominal Diameter210 mm (8 in)
Winding MaterialCopper
Magnetic Gap Depth8 mm (0.31 in)
Woofer Cone TreatmentWP Waterproof Front Side
Similar Drivers
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Reference
B&C
8CX21
8"
Best current price
£136.39
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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