About 11 years a friend of me, had (according to him) a small crossover a speakers of 100watts, and an tiny amplifier of 50watts. I think he had one 12" subwoofer, and it sound very, very loud with PLENTY OF BASS. (you could hear that bass from maybe 100 meters).
He told me that the trick was in getting a "CROSSOVER" (since i dont knot anything about setups nor audio parts).
a crossover cuts off or attenuates frequencies above or below the crossover frequency depending on the crossover.
a HP(high pass) crossover will cut off or attenuate(roll off) frequencies below the crossover frequency you set it to. this is good for protecting from damage to yer normal car speakers caused by low frequencies that they'll try to but can't reproduce.
a LP(low pass) crossover will cut off or attenuate frequencies above the crossover point, protecting in the same way your subwoofers from trying to produce high frequencies.
they don't have anything to do with how loud a speaker gets.
