Re: Need tweeter advice
First off, there should be a tweeter attenuation adjustment on the crossover. I would probably adjust that if possible to see if it suits you better before making the leap to purchasing new speakers.
Also, if you are going to get some new speakers I would STRONGLY recommend looking into Morel. I made the transition from Hex S600S's to my Morel setup and it is a very large improvement (granted the Morel's are much more expensive). Another thing you could do is switch to a Hex silk tweeter... I'm trying to remember if the crossover is different but I don't believe it is. It sticks in my mind that they are crossed over at around 1,800hz.
Hope this helps you somewhat.
Diamond Audio D6600.4
Diamond Audio D61500.1
Morel Elate 6SW's
JL Audio 12W6V2
Tsunami 10.9's and Kicker S-Series Power and Speaker Wire