[KG4 sound VS R 28 F ?]

Maybe I am just copper crazy... I can't imagine they would sound bette than my Kg2' and Kg4's running in parallel...   My receiver has ratings to 6

ohms but it running clean at 3

 

[KG4 sound VS R 28 F ?]

Can anyone speak to the changes in driver components? The drivers sure look different ?  Are they really 8 ohm or 6 like the KG's ?

 

[KG4 sound VS R 28 F ?]

I have had these baby's a long time and enjoy them every night. What I am looking for is feed back from anyone who has heard the two.

 I would like to hear your impressions .  I have never heard the 28 F but am looking to update,

 

Tweets are much Different ... My RS-400 have a nice tweeter and full sound for a small box.