Media
Auto-advancing
Size
18"
Impedance
8Ω
RMS Power
3400W
Sensitivity
97dB
EBP
100
Either alignment
Vd
1694cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs32Hz
Qts0.30
Qes0.32
Qms5.6
Vas187.0L
Re5.3Ω
Le1.90mH
BL30.3Tm
Sd1210cm²
Mms275g
Xmax14.0mm
SPL97dB
Power3400W
Power Nominal1700W
Impedance8Ω
Min Impedance6.5Ω
F Low35Hz
F High1500Hz
Voice Coil116mm
Flux Density1.16T
Pricing & availability
Price movement
Other offers
3 vendorsjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£435.26
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£454.99
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£454.99
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£434.38
Avg £444.91£10.53 below avg (-2.4%)
inc VAT
Dimensions & Physical
Weight11.9kg
Diameter460.0mm
Overall Depth242.0mm
Cutout Diameter425.0mm
Bolt Circle Diameter443.0mm
Additional Manufacturer Specs
Bl30.3 Tm
Fs32 Hz
Le1.9 mH
Re5.3 Ω
Sd1210 cm² (187.6 in²)
Ebp100 Hz
Mms275 g
Qes0.32
Qms5.6
Qts0.3
Vas187 dm³ (6.5 ft³)
η01.9 %
ConeRCK18SW1158
Xmax14 mm
Xvar16 mm
SpiderDouble Silicone
Cone ShapeRadial
Pole DesignT-Pole
Winding Depth34 mm (1.33 in)
Surround ShapeTriple Roll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter460 mm (18 in)
Winding MaterialCopper
Magnetic Gap Depth14 mm (0.55 in)
Recommended Tuning35 Hz
Bolt Circle Diameter443 mm (17.44 in)
Recommended Enclosure150 dm³ (5.3 ft³)
Woofer Cone TreatmentTWP Waterproof Both Sides
Baffle Cutout Diameter425 mm (16.73 in)
Flange And Gasket Thickness16 mm (0.62 in)
Air Volume Occupied By Driver10.5 dm³ (0.37 ft³)
Similar Drivers
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Reference
B&C
18SW115
18"
Best current price
£434.38
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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