Avalon: are new models quite better than older ?

Luke72, in my system, the Eidolon's bass is very agile, articulate and detailed. I'm driving the Eidolons with Atma-Sphere MA-2 amps and I would say their impact and dynamics in the bass is excellent on full scale orchestral music. (E.g., listening to the last side of the Stravinsky Firebird Mercury/Classic 45 rpm reissue, which has stunningly demanding bass transients.) The bass in the Opus I have not found to be as satisfactory, but the Eidolons are very good indeed.
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Luca, as I mentioned at the outset of your thread, I experience no slow or muddy bass on Eidolons here. Here the bass on the Eidolons is extremely tight, well defined and agile. But the Diamonds are better defined still, so perhaps the Radians are as well. But this is a matter of subtle degree of refinement, not the gross level of difference you seem to be describing. If you are using the same amplifier with both the Eidolons and the Radians, could it be that the amplifier is not as good a match to the Eidolons as it is to the Radians?
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