Media
Auto-advancing
Size
12"
Impedance
8Ω
RMS Power
800W
Sensitivity
101dB
EBP
265
Vented alignment
Vd
261cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs53Hz
Qts0.19
Qes0.20
Qms7.2
Vas63.0L
Re5.2Ω
Le0.83mH
BL22.3Tm
Sd522cm²
Mms54g
Xmax5.0mm
SPL101dB
Power800W
Power Nominal400W
Impedance8Ω
Min Impedance6.5Ω
F Low50Hz
F High3000Hz
Voice Coil76mm
Flux Density1.40T
Pricing & availability
Price movement
Other offers
4 vendorsjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£158.84
inc VAT
thomann
Updated 28 Apr 2026· 8Ω
Source: inc VAT · 20%
£173.00
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£178.69
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£178.69
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£156.65
Avg £169.17£12.53 below avg (-7.4%)
inc VAT
Dimensions & Physical
Weight7.5kg
Diameter316.0mm
Overall Depth133.0mm
Cutout Diameter282.0mm
Bolt Circle Diameter296.0mm
Additional Manufacturer Specs
Bl22.3 Tm
Fs53 Hz
Le0.83 mH
Re5.2 Ω
Sd522 cm² (80.9 in²)
Ebp265 Hz
Mms54 g
Qes0.2
Qms7.2
Qts0.19
Vas63 dm³ (2.2 ft³)
η04.8 %
ConeRCK012MH328
Xmax5 mm
Xvar7 mm
SpiderSingle
Cone ShapeRadial
Pole DesignT-Pole
Winding Depth14 mm (0.55 in)
Surround ShapeDouble Roll
Former MaterialGlass Fibre
Magnet MaterialFerrite
Nominal Diameter320 mm (12 in)
Winding MaterialCopper
Magnetic Gap Depth8 mm (0.31 in)
Bolt Circle Diameter296 mm (11.6 in)
Woofer Cone TreatmentNone
Baffle Cutout Diameter282 mm (11.1 in)
Flange And Gasket Thickness12 mm (0.47 in)
Air Volume Occupied By Driver3.3 dm³ (0.12 ft³)
Similar Drivers
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Reference
B&C
12MH32
12"
Best current price
£156.65
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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