Media
Auto-advancing
Size
4"
Impedance
8Ω
RMS Power
40W
EBP
110
Vented alignment
Vd
20cm³
T/S Parameters
Valid
Fs59Hz
Qts0.43
Qes0.54
Qms2.3
Vas2.5L
Re7.8Ω
Le1.90mH
BL7.4Tm
Sd50cm²
Mms10g
Xmax4.0mm
Power40W
Impedance8Ω
F Low55Hz
F High6Hz
Pricing & availability
Price movement
Best current price
Updated 17 May 2026
soundimports
£14.68
inc VAT
Dimensions & Physical
Diameter116.1mm
Overall Depth58.9mm
Cutout Diameter95.8mm
Similar Drivers
Keep size fixed, then add or remove T/S params to change the ranking and the comparison rows.
Reference
Dayton Audio
TCP115-8
4"
Best current price
£14.68
Compare on
Only active params are shown here. Size stays fixed automatically.
5 active T/S params, plus size.
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