I have 2 rockford fosgate pch-108's running off a 5 channel old school alpine amp, they have a sensitivity rating of 90db, if I got 2 new school Rockford fosgate p1 10s and hook them up to my amp, they have a 85db sensitivity rating, would I notice a loss of output?
It's not as simple as looking at a single number. The PA type speakers may have a 105dB rating but cannot produce much deep bass. The enclosure will also make a difference. The only way that the numbers are useful is when they were tested in precisely the same way and that's rare.
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