http://www.sonicelectronix.com/item_34373_Alpine-SPS-610C.html I've been looking at the speakers above in the link but I've noticed that a cross over isn't included. I've read somewhere that the cross overs are built in but it doesn't say anything on the website about it. So do I need a cross over or is it really built in?
I think you should contact to the website who are selling this. and make sure that cross over is included or not because if anyone tell you wrong that it have and when you order it and it will don't have it then its bad for you.