need more smoothness

What amp do you have now and what is your budget?

Also, your IC's and Spkr. wires? You may want to consider ones that fall into the "warm" side of the spectrum.

Try some inexpensive tweaks first, like putting felt around the tweeter. You may not even need a full ring (a little goes a long way).

What are you driving them with now (tubes or solid state)? Do you play CD's or vinyl or both (vinyl is generally smoother)? Any silver wire in the system (try copper for more body)?

Enjoy,
Bob

If your already using copper ICs and speaker cables.Next step would be a speaker with a silk / textile dome tweeter. Preferable a 1st order crossover..I find the 1 st order gives you the highs/detail on most designs but doesn't throw them at you IMHO.In other words the highs are there just not in your face. Also if using the Linn you may want the speakers to be amplifier friendly.

Good Luck!