ya but the thing is i can get an infinity ps212 for the same price and its a 12" and has more power. i know that size and power are not everything but will the daytona really sound better and be louder than an infinity ps212?
Power ratings on powered subwoofers are completely useless. It does NOT tell you anything about how loud or how low a subwoofer will play. You see, how loud it will play will depend upon the efficiency of the woofer. And there can be such differences in efficiency between woofers that one that is hooked up to an amplifier with 10 times the power can still be less loud than another one with 1/10 the power.
As for the size of the woofer, that also tells you pretty much nothing about performance, as a good quality 10" woofer can be vastly superior to a poorly made 15" woofer.
But since most people don't know these things, some manufacturers take advantage of consumer's ignorance, and put a cheap large woofer with a big amplifier (or one rated to be high in some less than open and honest way) to sell to suckers who believe it must be better because it is bigger and more powerful.