I want to purchase a pair of infinity 60.7CS components. They come with a pair of tweeters as well. So will I need a 2 channel amp for these or a 4 channel?
Also, just wondering, will they fit into the door panels of my 99 accord. It has 6.5"'s in there now, just worried about the depth.
Thanks.

 

Components usually come with crossover/s. Passive set up(with xovers) requires two channel amp. Active set up(without xovers) requires four channel amp. If you have to ask this question, you are probably new to car audio, and it would be easier to go passive, so you need a two channel amp, as probably 90% of people would.

The mids should fit ok. Worst case - you may need to get adaptor rings for proper fit. They are cheap.