You wouldn't by chance be looking for an excuse to change, would you? The "all my audio pals are making fun of my speakers" as an excuse syndrome? All jokes aside though,
if you have the disposable income, why not? Can you buy better sound? Absolutely. Do you need better sound? Positively not. But its what you wnat. I have to commend you for changing the front end 1st, as most would do it the other way around. Next thing I would be doing is deciding what I wanted to spend on new speakers. Then I would go listen, perhaps even buy if used, and A/B against my current speakers. One thing that gets mentioned up above that I would like to stress is that they will sound different upon 1st hooking them up, and I am afraid that a lot of people get "burned in" to a sound, just like a piece of gear. Do that, and if you like the new(er) speakers, regulate the old ones to whatever purpose you might have for them, or send them to the likes of me. If you like the KEF's better, you now have the option of taking back the NEW speakers(I assume the dealer where you are buying your gear would allow such) or if they are used, you should be able to sell them at very little loss considering the education you would receive by having them.
My point being, if you can change, don't live wondering what if, go ahead and do it.
