How old is too old ?....

Sean, Sean, Sean, why did you not tell him to replace the coils with Alpha-Core and any resistors will Mills as well as the caps with AudioCap Thetas? The speakers will be FAR more transparent and things that were a little muddy before should be very clear after these mods. Do not lower the standards and use less expensive parts, even though some Theta's can be pretty expensive. If you want better, you would have to go to teflon capacitors at about 10 times the cost of the Thetas.....

Lou

First, if it ain't broke, you don't have to fix it. You like your system now? There's no need to change.

Beyond that, the only appropriate advice is, go out and listen. Only you can decide if there's something better for you out there.

Why replace the KEF ? The speakers (drivers) technology did not change much in the last decade ! Not like CD player and DAC. Unless you want the Bose's direct & refecting technology ? :-)

Regards,

Like they said "If it ain't broke, why fix it"

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.

Craig, you're giving away all my secrets! By the way, you really need to build a set of these. They are awesome. And that "comb filter" thing is way, way overstated. Walking bass lines are no problem, amigo. I have no urge to make other cabinets at this time.