I have the Perfects in my car, I'm not sure why you would want to replace them just because your kickers blew, but I guess we all just need a change.
I have a friend who has the Diamond Audio HEXs. The Perfects are superior in clarity, but the DA have stronger mids. I couldn't switch from the Perfects to the HEXs because I'd feel like it was a downgrade. The Audiobahn's are nice, but the tweeter is a bit scratchy sounding and you're used to the loud/crisp Perfect. The Audiobahn's can't touch the Perfects on clarity either (although they are much clearer than most people think). I think Boston Acoustic speakers sound flat. Never cared for them much. If you can get a deal on the Alpine SPX 3-ways I'd go for them. If not the Focal 165 V3E's are the only way to go in my book for $400 3-way components. Most online dealers sell them for $399. I doubt you'd get a warranty on them though. The JL XR653 are another great option. I'd go with the Focals though personally.
I have a friend who has the Diamond Audio HEXs. The Perfects are superior in clarity, but the DA have stronger mids. I couldn't switch from the Perfects to the HEXs because I'd feel like it was a downgrade. The Audiobahn's are nice, but the tweeter is a bit scratchy sounding and you're used to the loud/crisp Perfect. The Audiobahn's can't touch the Perfects on clarity either (although they are much clearer than most people think). I think Boston Acoustic speakers sound flat. Never cared for them much. If you can get a deal on the Alpine SPX 3-ways I'd go for them. If not the Focal 165 V3E's are the only way to go in my book for $400 3-way components. Most online dealers sell them for $399. I doubt you'd get a warranty on them though. The JL XR653 are another great option. I'd go with the Focals though personally.