Media
Auto-advancing
Size
6.5"
Impedance
8Ω
RMS Power
500W
Sensitivity
100dB
EBP
412
Vented alignment
Vd
40cm³
Frequency response
Manufacturer-provided response plots and related charts.
T/S Parameters
Valid
Fs280Hz
Qts0.60
Qes0.68
Qms5.4
Vas0.7L
Re5.4Ω
Le0.15mH
BL13.9Tm
Sd143cm²
Mms14g
Xmax2.8mm
SPL100dB
Power500W
Power Nominal250W
Impedance8Ω
Min Impedance6.6Ω
F Low300Hz
F High6000Hz
Voice Coil51mm
Flux Density1.60T
Pricing & availability
Price movement
Other offers
1 vendorbluearan
Updated 17 May 2026· 8Ω
Source: inc VAT · 20%
£147.80
inc VAT
Best current price
Updated 17 May 2026
jpleisure
£144.19
Avg £146.00£1.80 below avg (-1.2%)
inc VAT
Dimensions & Physical
Weight2.3kg
Diameter187.0mm
Overall Depth113.0mm
Cutout Diameter151.0mm
Bolt Circle Diameter172.0mm
Additional Manufacturer Specs
Bl13.9 Tm
Fs280 Hz
Le0.15 mH
Re5.4 Ω
Sd143 cm² (22.17 in²)
Ebp412 Hz
Mms13.5 g
Qes0.68
Qms5.4
Qts0.6
Vas0.7 dm³ (0.02 ft³)
η02.2 %
ConeRCK06NSM518
Xmax2.8 mm
Xvar3 mm
SpiderSingle
Cone ShapeRadial
Pole DesignT-Pole
Winding Depth8.5 mm (0.33 in)
Surround ShapeTriple Roll
Former MaterialGlass Fibre
Magnet MaterialNeodymium Ring
Nominal Diameter170 mm (6.5 in)
Winding MaterialAluminium
Magnetic Gap Depth6 mm (0.24 in)
Bolt Circle Diameter172 mm (6.77 in)
Woofer Cone TreatmentWP Waterproof Front Side
Baffle Cutout Diameter151 mm (5.94 in)
Flange And Gasket Thickness11 mm (0.43 in)
Air Volume Occupied By Driver2 dm³ (0.07 ft³)
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
B&C
6NSM51
6.5"
Best current price
£144.19
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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