Media
Auto-advancing
Size
12"
Impedance
4Ω
RMS Power
1400W
Sensitivity
97dB
EBP
192
Vented alignment
Vd
418cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs48Hz
Qts0.24
Qes0.25
Qms6.8
Vas57.0L
Re3.1Ω
Le0.90mH
BL16.6Tm
Sd522cm²
Mms74g
Xmax8.0mm
SPL97dB
Power1400W
Power Nominal700W
Impedance4Ω
Min Impedance3.8Ω
F Low50Hz
F High3000Hz
Voice Coil88mm
Flux Density1.05T
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
bluearan
£205.50
inc VAT
Dimensions & Physical
Weight5.0kg
Diameter315.0mm
Overall Depth140.0mm
Cutout Diameter282.0mm
Bolt Circle Diameter298.0mm
Additional Manufacturer Specs
Bl16.6 Tm
Fs48 Hz
Le0.9 mH
Re3.1 Ω
Sd522 cm² (80.91 in²)
Ebp192 Hz
Mms73.6 g
Qes0.25
Qms6.8
Qts0.24
Vas57 dm³ (2.01 ft³)
η02.5 %
ConeRCK12NDL884
Xmax8 mm
Xvar11 mm
SpiderDouble Silicone
Cone ShapeExponential
Pole DesignT-Pole
Winding Depth21.5 mm (0.85 in)
Surround ShapeTriple Roll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter320 mm (12 in)
Winding MaterialAluminium
Magnetic Gap Depth10 mm (0.39 in)
Recommended Tuning65 Hz
Bolt Circle Diameter298 mm (11.73 in)
Recommended Enclosure40 dm³ (1.41 ft³)
Woofer Cone TreatmentWP Waterproof Front Side
Baffle Cutout Diameter282 mm (11.1 in)
Flange And Gasket Thickness13 mm (0.51 in)
Air Volume Occupied By Driver2.5 dm³ (0.08 ft³)
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
B&C
12NDL88
12"
Best current price
£205.50
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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