What are the absolute loudest door speakers?

Not subwoofers. I'm talking mids and highs. Right now the loudest set I can find are about 135 watts rms per side of components. Or 150 watts rms for the Kappa 900 series but they're pretty expensive. Is this as loud as it gets? Or are there others out there without breaking the bank? Or am I just going... show more Not subwoofers. I'm talking mids and highs. Right now the loudest set I can find are about 135 watts rms per side of components. Or 150 watts rms for the Kappa 900 series but they're pretty expensive. Is this as loud as it gets? Or are there others out there without breaking the bank? Or am I just going to have to go active crossovers and buy everything separately (to maximize wattage)? TIA
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