Media
Auto-advancing
Size
18"
Impedance
4Ω
RMS Power
1400W
Sensitivity
94dB
EBP
71
Either alignment
Vd
847cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs30Hz
Qts0.40
Qes0.42
Qms9.1
Vas251.0L
Re3.8Ω
Le1.35mH
BL20.0Tm
Sd1210cm²
Mms239g
Xmax7.0mm
SPL94dB
Power1400W
Power Nominal700W
Impedance4Ω
Min Impedance4.6Ω
F Low30Hz
F High1000Hz
Voice Coil100mm
Flux Density1.05T
Pricing & availability
Price movement
Other offers
3 vendorsjpleisure
Updated 17 May 2026· 4Ω
Source: ex VAT · 20%
£214.31
inc VAT
bluearan
Updated 17 May 2026· 4Ω
Source: inc VAT · 20%
£226.49
inc VAT
bluearan
Updated 17 May 2026· 4Ω
Source: inc VAT · 20%
£226.49
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£214.31
Avg £220.40£6.09 below avg (-2.8%)
inc VAT
Dimensions & Physical
Weight10.2kg
Diameter460.0mm
Overall Depth197.0mm
Cutout Diameter422.0mm
Bolt Circle Diameter440.0mm
Additional Manufacturer Specs
Bl20 Tm
Fs30 Hz
Le1.35 mH
Re3.8 Ω
Sd1210 cm² (187.55 in²)
Ebp71 Hz
Mms239 g
Qes0.42
Qms9.1
Qts0.4
Vas251 dm³ (8.86 ft³)
η01.46 %
ConeRCK18PS1004
Xmax7 mm
Xvar9 mm
SpiderDouble Silicone
Cone ShapeRadial
Pole DesignT-Pole
Winding Depth19 mm (0.75 in)
Surround ShapeTriple Roll
Former MaterialGlass Fibre
Magnet MaterialFerrite
Nominal Diameter460 mm (18 in)
Winding MaterialCopper
Magnetic Gap Depth10.5 mm (0.41 in)
Recommended Tuning29 Hz
Bolt Circle Diameter440 mm (17.32 in)
Recommended Enclosure250 dm³ (8.83 ft³)
Woofer Cone TreatmentTWP Waterproof Both Sides
Baffle Cutout Diameter422 mm (16.61 in)
Flange And Gasket Thickness16 mm (0.63 in)
Air Volume Occupied By Driver9.5 dm³ (0.34 ft³)
Similar Drivers
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Reference
B&C
18PS100
18"
Best current price
£214.31
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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