Media
Auto-advancing
Size
12"
Impedance
8Ω
RMS Power
700W
Sensitivity
99dB
EBP
208
Vented alignment
Vd
261cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs50Hz
Qts0.23
Qes0.24
Qms5.3
Vas75.0L
Re5.0Ω
Le1.20mH
BL18.6Tm
Sd522cm²
Mms51g
Xmax5.0mm
SPL99dB
Power700W
Power Nominal350W
Impedance8Ω
Min Impedance6.4Ω
F Low50Hz
F High2000Hz
Voice Coil76mm
Flux Density1.05T
Pricing & availability
Price movement
Other offers
3 vendorsjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£144.53
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£147.11
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£148.19
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£143.56
Avg £145.85£2.29 below avg (-1.6%)
inc VAT
Dimensions & Physical
Weight6.5kg
Diameter316.0mm
Overall Depth136.0mm
Cutout Diameter282.0mm
Bolt Circle Diameter296.0mm
Additional Manufacturer Specs
Bl18.6 Tm
Fs50 Hz
Le1.2 mH
Re5 Ω
Sd522 cm² (80.9 in²)
Ebp208 Hz
Mms51 g
Qes0.24
Qms5.3
Qts0.23
Vas75 dm³ (2.6 ft³)
η03.8 %
ConeRCK12PLB768
Xmax5 mm
Xvar7 mm
SpiderSingle
Cone ShapeExponential
Pole DesignT-Pole
Winding Depth16 mm (0.62 in)
Surround ShapeDouble Roll
Former MaterialGlass Fibre
Magnet MaterialFerrite
Nominal Diameter320 mm (12 in)
Winding MaterialAluminium
Magnetic Gap Depth11 mm (0.4 in)
Recommended Tuning65 Hz
Bolt Circle Diameter296 mm (11.6 in)
Recommended Enclosure42 dm³ (1.48 ft³)
Woofer Cone TreatmentNone
Baffle Cutout Diameter282 mm (11.1 in)
Flange And Gasket Thickness16 mm (0.62 in)
Air Volume Occupied By Driver3.3 dm³ (0.12 ft³)
Similar Drivers
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Reference
B&C
12PLB76
12"
Best current price
£143.56
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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