Media
Auto-advancing
Size
18"
Impedance
8Ω
RMS Power
3400W
Sensitivity
98dB
EBP
143
Vented alignment
Vd
1997cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs30Hz
Qts0.20
Qes0.21
Qms4.3
Vas168.0L
Re5.0Ω
Le3.85mH
BL39.0Tm
Sd1210cm²
Mms330g
Xmax16.5mm
SPL98dB
Power3400W
Power Nominal1700W
Impedance8Ω
Min Impedance7.0Ω
F Low30Hz
F High500Hz
Voice Coil116mm
Flux Density0.80T
Pricing & availability
Price movement
Other offers
3 vendorsjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£433.57
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£439.00
inc VAT
bluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£449.00
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£430.08
Avg £437.91£7.83 below avg (-1.8%)
inc VAT
Dimensions & Physical
Weight12.6kg
Diameter460.0mm
Overall Depth248.0mm
Cutout Diameter425.0mm
Bolt Circle Diameter442.0mm
Additional Manufacturer Specs
Bl39 Tm
Fs30 Hz
Le3.85 mH
Re5 Ω
Sd1210 cm² (187.55 in²)
Ebp143 Hz
Mms330 g
Qes0.21
Qms4.3
Qts0.2
Vas168 dm³ (5.93 ft³)
η02.2 %
ConeRCK18DS1158
Xmax16.5 mm
Xvar14 mm
SpiderDouble Silicone
Cone ShapeRadial
Pole DesignT-Pole
Winding Depth40 mm (1.57 in)
Surround ShapeTriple Roll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter460 mm (18 in)
Winding MaterialAluminium
Magnetic Gap Depth14 mm (0.55 in)
Recommended Tuning40 Hz
Bolt Circle Diameter442 mm (17.4 in)
Recommended Enclosure100 dm³ (3.53 ft³)
Woofer Cone TreatmentTWP Waterproof Both Sides
Baffle Cutout Diameter425 mm (16.73 in)
Flange And Gasket Thickness16 mm (0.63 in)
Air Volume Occupied By Driver10 dm³ (0.35 ft³)
Similar Drivers
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Reference
B&C
18DS115
18"
Best current price
£430.08
Compare on
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5 active T/S params, plus size.
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