Media
Auto-advancing
Size
12"
Impedance
8Ω
RMS Power
700W
Sensitivity
99dB
EBP
200
Vented alignment
Vd
277cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs52Hz
Qts0.25
Qes0.26
Qms4.9
Vas56.0L
Re5.1Ω
Le0.44mH
BL20.2Tm
Sd522cm²
Mms64g
Xmax5.3mm
SPL99dB
Power700W
Power Nominal350W
Impedance8Ω
Min Impedance6.1Ω
F Low50Hz
F High3000Hz
Voice Coil76mm
Flux Density1.20T
Pricing & availability
Price movement
Other offers
1 vendorbluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£148.20
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£144.54
Avg £146.37£1.83 below avg (-1.3%)
inc VAT
Dimensions & Physical
Weight3.3kg
Diameter313.0mm
Overall Depth143.0mm
Cutout Diameter283.0mm
Bolt Circle Diameter299.0mm
Additional Manufacturer Specs
Bl20.2 Tm
Fs52 Hz
Le0.44 mH
Re5.1 Ω
Sd522 cm² (80.91 in²)
Ebp200 Hz
Mms64 g
Qes0.26
Qms4.9
Qts0.25
Vas56 dm³ (1.98 ft³)
η02.9 %
ConeRCK12CLA768
Xmax5.3 mm
Xvar6.5 mm
SpiderSingle
Cone ShapeExponential
Pole DesignStraight Pole
Winding Depth16 mm (0.63 in)
Surround ShapeTriple Roll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter320 mm (12 in)
Winding MaterialCCAW
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 Diameter283 mm (11.14 in)
Flange And Gasket Thickness9 mm (0.37 in)
Air Volume Occupied By Driver2.3 dm³ (0.08 ft³)
Similar Drivers
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Reference
B&C
12CLA76
12"
Best current price
£144.54
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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