T/S Parameters
Valid
Fs64Hz
Qts0.36
Qes0.41
Qms3.1
Vas45.1L
Re5.6Ω
Le1.20mH
BL17.5Tm
Sd531cm²
Mms56g
Xmax4.5mm
Power40W
Impedance8Ω
Voice Coil45mm
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
leanaudio
£175.00
inc VAT
Dimensions & Physical
Weight4.6kg
Diameter309.0mm
Overall Depth172.0mm
Cutout Diameter286.0mm
Bolt Circle Diameter297.0mm
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
Celestion
TF1225CX
12"
Best current price
£175.00
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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