Watts
Watts
Out of context: Reply #5
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best advice ask in a showroom, for real....
I used to know all that shit... (RMP is very roughly 0.7 of peak to peak.. all to do with a phase shift brought on by inductive impedance if my memory serves me right) but seeings as it is for a car and therefore DC it'd be best to check with a specialist... they should tell you for free, they want to sell you something after all...