Media
Auto-advancing
Size
12"
Impedance
8Ω
RMS Power
700W
Sensitivity
99dB
EBP
218
Vented alignment
Vd
313cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs48Hz
Qts0.21
Qes0.22
Qms4.8
Vas59.0L
Re5.2Ω
Le1.50mH
BL22.4Tm
Sd522cm²
Mms70g
Xmax6.0mm
SPL99dB
Power700W
Power Nominal350W
Impedance8Ω
Min Impedance6.5Ω
F Low45Hz
F High3000Hz
Voice Coil76mm
Flux Density1.05T
Pricing & availability
Price movement
Other offers
2 vendorsjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£140.39
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£143.54
inc VAT
Best current price
Updated 28 Apr 2026
thomann
£131.00
Avg £138.31£7.31 below avg (-5.3%)
inc VAT
Dimensions & Physical
Weight3.4kg
Diameter313.0mm
Overall Depth142.0mm
Cutout Diameter282.0mm
Bolt Circle Diameter299.0mm
Additional Manufacturer Specs
Bl22.4 Tm
Fs48 Hz
Le1.5 mH
Re5.2 Ω
Sd522 cm² (80.9 in²)
Ebp218 Hz
Mms70 g
Qes0.22
Qms4.8
Qts0.21
Vas59 dm³ (2.1 ft³)
η02.9 %
ConeRCK12CL768
Xmax6 mm
Xvar8.5 mm
SpiderSingle
Cone ShapeExponential
Pole DesignStraight Pole
Winding Depth17 mm (0.67 in)
Surround ShapeTriple Roll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter320 mm (12 in)
Winding MaterialCopper
Magnetic Gap Depth11 mm (0.43 in)
Recommended Tuning60 Hz
Bolt Circle Diameter299 mm (11.77 in)
Recommended Enclosure40 dm³ (1.41 ft³)
Woofer Cone TreatmentWP Waterproof Front Side
Baffle Cutout Diameter282 mm (11.1 in)
Flange And Gasket Thickness9 mm (0.35 in)
Air Volume Occupied By Driver2.3 dm³ (0.08 ft³)
Similar Drivers
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Reference
B&C
12CL76
12"
Best current price
£131.00
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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