tweeter info

im thinking about installing tweeters for the first time. i currently have an alpine idax 303 hu, 2 alpine type-r 5.25s in front speaker locations, 2 6.5s in rear deck, all 4 speakers powered by an alpine ktp-445, and a t1000-1bd w/ 2 12" kicker l5s in the trunk. i dont know much about...