I just installed some PG rsd 6.5 components in my truck and what a difference. I had some piece of crap 4inch 2ways in the doors powered by a zapco reference 150 and I hated it.
When using the components I added a coustic amp 260 to run the mids and use the zapco on the tweeters. The difference is amazing. I feel like I have a real system again. Amazing how a 100 dollar set of speakers can change the entire sound of a system.
Never again will I use 2 ways. Components are the only way to go for me.