T/S Parameters
Valid
Fs56Hz
Qts0.52
Qes0.63
Qms3.9
Vas4.5L
Re6.5Ω
BL5.1Tm
Sd53cm²
Mms7g
Xmax3.2mm
SPL85dB
Power25W
Impedance8Ω
F Low60Hz
F High4000Hz
Voice Coil25mm
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
soundimports
£19.45
inc VAT
Dimensions & Physical
Diameter116.5mm
Overall Depth71.6mm
Cutout Diameter94.0mm
Bolt Circle Diameter108.0mm
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
HiVi
B4N
4"
Best current price
£19.45
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Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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