Conclusion: My background: Rouge Car Audio Installer, I've installed 5 complete systems as well as many other headunits and speakers. Always for friends and I always get to play with their systems. I love my Kicker sub and ZX amp. Whether good practice or not, I specifically purchased the Kicker ZX650.4 amp because it matched visually with my ZX750.1 sub amp. But I had no reservations about going to another brand for my component sets, I want the best sound.
Conclusion: These speakers sound amazing! (Iv got them running of a vibe litebox 4) When I put the top down they still are able to completely surround you with every note in the song. They have good lows but a sub is needed if you like true bass. My only drawback with them is they are alittle quiet but it's a small set back for their peerless quality.
Conclusion: Very nice sounding speaker, but also very quite speakers, I'm running 75Wrms in each and they are far to quite for my liking, In my opinion they need 100-125wrms ea to make them come even close to keeping with the Kicker sub's in volume Over all they are a very clean and nice sounding speaker
Conclusion: well, before i even put these into my car I was stunned by how well built these are. The mid bass drivers are heavy and sturdy, the cross overs are gorgeous. I changed my install idea when I saw them so that they would be exposed and shown off! ;) but it was when I got everything hooked up running off my new Vibe Litebox4 amp that I was really blown away. loud, clear, detailed...