Media
Auto-advancing
Size
5"
Impedance
4Ω
RMS Power
30W
EBP
127
Vented alignment
Vd
21cm³
T/S Parameters
Valid
Fs57Hz
Qts0.37
Qes0.45
Qms2.0
Vas5.3L
Re2.9Ω
Le0.28mH
BL3.6Tm
Sd53cm²
Mms6g
Xmax4.0mm
Power30W
Impedance4Ω
F Low65Hz
F High5400Hz
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
soundimports
£57.99
inc VAT
Dimensions & Physical
Diameter125.5mm
Overall Depth54.2mm
Cutout Diameter94.0mm
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
Dayton Audio
RS125-4
5"
Best current price
£57.99
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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