Media
Auto-advancing
Size
4"
Impedance
8Ω
RMS Power
200W
Sensitivity
89dB
EBP
316
Vented alignment
Vd
22cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs79Hz
Qts0.24
Qes0.25
Qms8.5
Vas2.6L
Re5.5Ω
Le0.21mH
BL8.8Tm
Sd57cm²
Mms7g
Xmax3.8mm
SPL89dB
Power200W
Power Nominal100W
Impedance8Ω
Min Impedance6.2Ω
F Low80Hz
F High2000Hz
Voice Coil34mm
Flux Density1.25T
Pricing & availability
Price movement
Other offers
1 vendorjpleisure
Updated 17 May 2026· 8Ω
Source: ex VAT · 20%
£53.50
inc VAT
Best current price
Updated 17 May 2026
bluearan
£46.02
Avg £49.76£3.74 below avg (-7.5%)
inc VAT
Dimensions & Physical
Weight0.6kg
Diameter127.0mm
Overall Depth67.0mm
Cutout Diameter103.0mm
Bolt Circle Diameter114.0mm
Additional Manufacturer Specs
Bl8.8 Tm
Fs79 Hz
Le0.21 mH
Re5.5 Ω
Sd57 cm² (8.84 in²)
Ebp316 Hz
Mms7.2 g
Qes0.25
Qms8.5
Qts0.24
Vas2.6 dm³ (0.09 ft³)
η00.5 %
ConeRCK04NDS348
Xmax3.8 mm
Xvar5 mm
SpiderSingle
Cone ShapeExponential
Pole DesignT-Pole
Winding Depth11 mm (0.43 in)
Surround ShapeRoll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Inside Slug
Nominal Diameter100 mm (4 in)
Winding MaterialCopper
Magnetic Gap Depth7 mm (0.28 in)
Recommended Tuning90 Hz
Bolt Circle Diameter114 mm (4.51 in)
Recommended Enclosure3 dm³ (0.11 ft³)
Woofer Cone TreatmentTWP Waterproof Both Sides
Baffle Cutout Diameter103 mm (4.06 in)
Flange And Gasket Thickness3 mm (0.12 in)
Air Volume Occupied By Driver0.25 dm³ (0.01 ft³)
Similar Drivers
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Reference
B&C
4NDS34
4"
Best current price
£46.02
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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