Hales transcendence 8 tweeters

And yes I have the f series and if it is lower in db it should work fine for me..the other vifa are fine but a little louder so it get brighter..I will also try a tube preamp with krell ksa-150

No, the Dayton F model is not lower in sensitivity than the Vifa that you have in there now, it is actually about the same, but the impedance is a much closer match to the original D26 series "Hales" vifa, so it will cross properly and hopefully get rid of the peak that you are dealing with.
If not the photo's that I have of the Hales crossover show it being fairly simple, I would just need to know how you would want it to change and need a shot of both sides of the board. as long as you can do the work, you will end up with a great blend.

I just installed the Dayton tweets last night and let it burn in all night low volume fm radio ,so far I really like it compared to the vifa Dayton is more relax and blending so much better I will listened to them more later after all my errands.Thanks

Been about 10 Days, I assume no news is good news. Are you a happy camper? Uh, happy audiophile?

Thanks I am very happy audiophile,I listened to them this weekend on my living room and sounds very very nice!! Thanks