IMO, save the money on components,takes up more room and in a open air envirionment, you wont miss the sound quality by going with a 2 or 3 way.Amps have built in hi/low crossovers too so you can cut the frequency to the "highs" and they dont distort when the bass is turned up for the subs.Being that most speakers get put by your feet, mount some tweeters up high if possible, really helps when cuising and the pipes are making thier own music