T/S Parameters
Valid
Fs30Hz
Qts0.28
Qes0.29
Qms6.7
Vas220.0L
Re5.4Ω
Le1.38mH
BL30.5Tm
Sd1200cm²
Mms260g
Xmax14.0mm
SPL97dB
Power1800W
Impedance8Ω
Min Impedance6.8Ω
F Low30Hz
F High1000Hz
Voice Coil114mm
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
bluearan
£399.00
inc VAT
Dimensions & Physical
Weight15.2kg
Diameter465.0mm
Cutout Diameter424.0mm
Bolt Circle Diameter447.0mm
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
RCF
LF18X451
18"
Best current price
£399.00
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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