Importance of dedicated crossover switch?

[ck_az]

So I am researching my "perfect" setup. I see a lot of speakers come with separate crossover boxes. I am thinking about putting a Kenwood sub-woofer with my setup. Does it make sense to spend a little more money and get the dedicated cross-over boxes? I am looking at some JL Audio VR650 that include the dedicated boxes. I figure if I am going to go through the effort of tearing everything apart I want to make sure I am getting the right stuff.

My wish list:
Kenwood DDX 512 or Pioneer 800BT
Kenwood KSC-SW10 Subwoofer
JL Audio VR650-CSi 6.5" speakers with tweeters

Also considering Alpine SPS-600C speakers instead of the JL Audio or one model down JL Audio speakers which don't have the dedicated crossovers.

Thanks,
Chris

For those that don't know what a crossover switch is they prevent the wrong frequencies from being sent to certain speakers. For example you don't want the highs going to the sub-woofer and the lows going to the tweeters.

[Napoleon12]

in todays speakers you will get crossovers if you go with component speakers. alot of the higher end coax. speakers have some sort of capacitor on them to filter out the low freq. from the tweeters. alpine,infinity,jl all have that.

[ck_az]

Originally Posted by Napoleon12

in todays speakers you will get crossovers if you go with component speakers. alot of the higher end coax. speakers have some sort of capacitor on them to filter out the low freq. from the tweeters. alpine,infinity,jl all have that.

Thanks for the reply. I have seen that advertised. What about when you add a 3rd party sub-woofer? Maybe they have it built in as well.

[Napoleon12]

almost all amps now a days have the crossover built into them. alot of the new desks today also have sub control plus a crossover in them too